Great videos and information, keep up the good work man. I've watched almost all your videos but still don't have a full understanding of matching my engine to compressor maps. I have an awd Honda k24 with k20 head, long tube manifold, and Bell vertical flow intercooler. This is mostly a street car so I'm obviously looking for the best response possible. Somewhere in the 600whp would be my goal. I think I have it narrowed down to the g25-660 or the g30-660. Which would be the best for my setup and what would be the difference between the two? Also what turbo housing would you suggest? Thx in advance for any input
Hi there Greg May, the K24 is far too large to run the G25 series turbochargers with. The engine revs too high and if you calculate your volumetric efficiency of the engine, you will see that the turbo is far too small - even for a low boost application. You need to consider the G30-770 which would be more suited to your engine size and high RPM band. The turbo will spool fast and be able to carry power through to 8000RPM + without any hassles. I would suggest the AR.83 turbine housing since the engine revs so high. This is a 770HP capable turbocharger and small enough to fit into limited space (compared to a GT35xx for example) Also Consider the EFR series - dynamite turbochargers with great power potential too.
@@TurboDirectSA Thx for taking the time to reply Chris. I've considered the efr line but just assumed garrett's new technology was superior. Is this not the case? In reality I think response is more important than the number 600 for a street, occasional track day, and playing around at the dragstrip with friends. Looking at the efr line again I see the 7163, 7064, and 7670 to be in my range. I should have mentioned I'll be running e85 and space is not a limitation. So what's the best turbo for me, g30 or a efr? Also twin scroll is an option as I am waiting to buy my manifold upon turbo selection. I've read response will be better with twin scroll but will hurt top end slightly. Is this true? Thx again for leading the blind
@@OnTheWorldWideWeb1 Garrett's latest tech and aero designs are absolutely ground breaking and the turbochargers are proven, but there are options like Borg's EFR setup which is also a serious product, by no means is this some cheap knock off clone of anything - the EFR features a GAMME Ti - turbine wheel head, which is the only manufacturer able to do this, and the turbine wheel is extremely light weight, which caters for and allows the EFR rotating assembly to spool up extremely fast and coupled to the high flow compressors, there lies an answer to the other products in the market. We are distributors for both brands, and i have my personal preferences which is irrelevant to this conversation as i will not allow any bias to affect any advise i provide. In order to give you the best advise, i rely on facts and facts alone - ill give you the data, comp map plots and factual experience with each in terms of dyno, road/driving experience and/or drag/circuit racing experience with both/either or. you make the decision at the end of the day - further more i have nothing to gain or lose - just so we are clear. Drop me a line at info@turbodirect.co.za and ill take this off line and we can go from there
Great video, just subscribed! Your thoughts if you get a chance, 3.0L V6, specifically the Nissan VG30ET the SOHC version. Currently making 350hp with a hybrid t3/t4, nothing crazy. Looking to make 500 with minimal lag, been debating a gtx3076r gen 2, but these look amazing, any help? Thanks Chris
CVTURBO - i loved that motor when i was younger, the older 300ZX with single turbo is a low revving engine, and will need something to spool fast to ensure you have power throughout the RPM range - I would look toward the GTX3071R Gen2 or the GTX3076R Gen 1 or Gen 2 -- or the new G30-770 - i wouldn't go large than this for the sake of losing the low down response. You have a large CID engine BUT its not a multivalve setup to head flow and volumetric efficiency on this motor is not very high. The other option is the EFR 7163 with twin scroll turbine - this will allow very decent spool due to the T4 flanged (its not a T4 volute) inlet, which will work nicely on the V engine config you have. The Gamma TI turbine is extremely light weight, and will make 550WHP at around 1.8-2.0bar gauge pressure. Hope this helps -
@@TurboDirectSA Awesome i appreciate the response! I did forget to mention the engine has fairly large cams (290s with 0.480" lift) Its been hard for me to compare other owners turbo setups to mine as im sure my cams have an effect on boost levels
@@TurbochargedCreationsbycvturbo your cams will move your motors volumetric efficiency up slightly, but still remains in the G30/GTX30 / EFR7163 size family for the spool and power capability.
Garrett is absolutely killing it in turbocharging industry. Great video on showing off the that beauty of a turbo. Chris how would you compare the gtw34 to the gtx30? .63 housing for both to make it comparable if possible.
There is no comparison - the G25 is dual ball bearing, and will outspool ANYTHING in the same family size and/or up to 2 family sizes larger with the same HP capacity. The GTW is a journal bearing turbo offering which is also capable of large HP numbers, but without the same response and linear response, ALTHOUGH its more than capable of a streetable setup especially for the budget racer sector.
@@TurboDirectSA I see you guys are running that special on the gtw3476 thats why I'm interested in it especially since it is at such a great price which makes it a very attractive buy. Someone I know had the borg Warner 200sx and then changed to the gtw- he saw better spool times and made more hp with the Garrett gtw
@@TurboDirectSA I previously had the original Garrett gt35 on my rb25det but it's time for an upgrade now. I feel like the gtw3476 would be just right for my rb25det
@@ThatV12MiataBruh the GTW3476 is not an "upgrade" to the GT3582R as the GT is dual ball bearing, HOWEVER the GTW will spool faster due to the option of the AR48 turbine housing, and the turbine wheel's physical size is smaller - so transient response will be improved, especially on the RB25 (doesn't easily spool up a larger turbo)
Fantastic review Chris, Im building a haybusa track car for 25min sprint sessions, it'll be getting a 1.5 stroker crank, forged rods and pistons, race port heads ARP bolts, dry-sump etc etc on e85. For an intercooler I'll be sparing no expense either going locally with something custom from PWR.com.au or mezzotech.com In Australia it gets bloody hot :) Im looking for a turbo with great response linear torque and a decent top end with a focus on response. I was thinking of some twin scroll turbo for response but am concerned these lovely G25's maybe too big for my application. I could get a billet block and bore it out to a 1600cc if that helps, bare in mind the engine will be revving to 10,000rpm. What would YOU do? Thanks mate
Hi matey -- we currently hold the records for the fastest FULL STREET Hayabusa with street tires and full street trim in Africa 1000m sprint we achieved 385.9kmh and 406.9kmh on the texas mile, this bike uses the GTX3584RS turbocharger - the G25 is in fact too small for what you want to do - i would rather use the GTX3076R Gen2 or G30-770 unit which is the latest release. The G25 will make all of its power lower down, be scary to ride (extremely fast boost response) and make no power at the higher RPM range - considering you wont be holding back on spending, the motor and head work will be done, so the engine will flow alot more than a stock unit. The GTX/G30 family will give you alot more linear power delivery and will still be able to hold its own higher up in the RPM range - and will still be capable of over 600HP
@@TurboDirectSA 385kph in street trim! holy crap!! - so even a 1.5L with a G25-660 with 0.92a/r will run out of puff up top? Incredible. I'll look into the G30 series - thanks again mate this is exactly the answer i was looking for👍
@@JH-jo9wt the 1500cc engine IF IT REVS AS HIGH AS A BIKE ENGINE - and flows as much - will run out of steam higher up in the RPM range. Ill make a video of how to calculate this and post it up on our channel for you - keep an eye out for this in the next couple days -
Yes, built into the manifold design, I would run the Tial 38mm or 40mm, stay away from the other popular brands, they are not as good and have boost fluctuation issues.
So I'll be having my VQ35DE build next month. Engine will have Darton sleeves and stroker kit to 4.1L which means that each bank of 3 cylinders will be having 2L. Are twin g25-660 good for my application as I heard they are perfect for 2L 4cyl engines? BTW I wish to reach 800hp easily but the guy that will be building by engine says I should go single turbo. Problem is that I hate turbo lag and from all the reviews on the internet it seams like twin g25 are a turbos for me as they are very responsive.
Twins will be laggier depending on the application and HP target. Generally to make 800HP you'll need a mid/large frame single turbo setup and lag normally creeps in. Your specific application requires 800HP and its a large size motor - if you want to "divide up the engine" into the two V's -- i.e 2.0litre per 3cyl bank - this will spool up a G25-660 very easily using the AR72 turbine housings. This will make the required power without hassle at all, more than likely around 25PSI depending on tune, fuel and engine build.
The BW S200SXE is a brilliant turbocharger and uses a TI game turbine blade, which is extremely light weight and spools fast! Changing the turbine housing to the AR83 T4 inlet and Vband outlet will improve spool over what you currently have
Duarte Santos - the EFR wont hold a candle to the G25-660 in spool or power delivery. E.G EFR6173 is capable of 550HP, with the T4 twin scroll housing or the Vband unit including the T25 housing version will not outspool the G25, the power delivery and small package size of the G25 is unmatched bar none.
@@BEYTEK sorry buddy you clearly looking in the wrong places - we have 17 cars with these turbos on, lowest boost is running 1.6bar and the power and spool is untouchable, customers came from GTX2867R Gen1 and Gen2's, others came from chinese rubbish to the G25, others went from hybrid builds, and some came from GT and GTX3071R units - every single one saw boost response benefits, and every single one saw massive power and torque improvements. perhaps type in a search in google and or youtube - youll see PLENTY factual and verified facts supporting the "on paper" claims you mention - here is only one th-cam.com/video/AYzi_5O_lCI/w-d-xo.html -- i can give you 100's more.
Looking to build up a K20C1 type R to around 500hp. While still trying to keep it nice and responsive and drivable. How will this spool compared to the stock TD04 that the CTR comes with?
The Honda motors arent slouches! They flow very well and will easily make the power with the G25 turbo - i wouldnt use the 550HP unit, i would go G25-660 with AR72 turbine housing. the response is GREAT and the power delivery will be linear.
Man that sounds awesome. And it won't be much laggier than stock I would think? Especially with the '72. How the G25s comparing to the EFRs from Borg Warner?
@@alastairstedman7840 The issue here is which Borg can compare with the power deliver to the G25-660? It will have to be at least two family sizes larger, (larger than the EFR7163 which is only 550HP capable) which will not respond as fast as the G25 will. Its a no brainer to be honest
I'm currently trying to get a VW golf Mk7 with the 1.4 tsi engine (EA211) built as a track car. Top end is not my goal, but I just want to make 230-250hp reliably and the stock turbo is not known for reliability. Do you think this application can help me achieve those number without sacrificing spool time over the stock IHI turbo that my car has?
Absolutely it will, however you will need to use the version with the internally gated AR49 T25 turbine housing, the 1.4litre engine is small and youll need ther smaller housing to bring the response into the mix for this engine. It will make ALOT more than your required power across the entire rev range - the turbo is supplied with 1.0bar spring, and will be perfect for this application - contact sales on info@turbodirect.co.za for more info and pricing
Great video:) I recently started to look into Turbo charging my car however I am a bit confused. I was looking into getting the g25-550. Has this turbo got a built in waste gate or would I need an external waste gate. I have a bmw 120i e82 2l 4 cylinder.
@@Less27727 The actuator is the pneumatically controlled "cup" like thing which moves a rod axially to open and close the internal wastegate on the turbo. This is what controls your boost pressure ultimately.
Yes but use the larger AR92 turbine housing, the 2JZ is a large motor for this small turbo. If you use the AR72 housing, the power will drop off above 5000rpm.... + -
Chris, please some help. Engine 1.8t 20v , aiming for 400hp , i will let go the gtx for a g-series. G25-550 vband 0.72 or wait for 49AR ? Will it spool faster thant vband 0.72? It will run hotter?
Hi there, the AR49 will certainly spool faster but will not produce the same power in the higher engine PRM range - higher back pressures in the turbine stage will prevent the max power capability. If you only looking to produce say 450-480HP then use the AR49, manage the heat by using a decent heat exchanger (intercooler) but also plot a compressor map to see where in the efficiency the turbo will be running on the motor at the boost/power level you intend using it - if you in the max or high efficiency range with the AR49 housing, then you safe in terms of excessive heat introduction into the engine, otherwise opt for the AR72
Hi Chris great video, im wondering if you have any experience of how the g25 550 compares to the gtx2860 gen2? Both will make the power i need. Will the 2860 have better spool characteristics?
Kenny, we have a few of these turbos on Michelin cup and Gymkhana grid cars (subarus...) they are exceptionally fast in response, and will out perform and out spool any GTX28xx unit. They are in fact a replacement for the GTX28 series, as Garrett are busy with the replacement of the GT/X family turbochargers and are replacing them with the G-series units. Next up are the G-30 and G-35 .... look out for extreme performance from the same family size units ..... 2019 is going to be exciting!
@@TurboDirectSA that is awesome to hear - my new g25 550 has just arrived, looks amazing. I am wondering if garrett will be releasing any different AR v band exhaust housings? if I have the option to go smaller than .72 in future it may be worth a shot. Thanks for your reply i really appreciate it
m.th-cam.com/video/30Pb1CwHJm0/w-d-xo.html Screamer pipe open at this boost while car is doing 5kmh around a cone - nothing short of impressive! And quick too - I think this turbo is cut out to be everything it’s advertised to be!
don't discount this turbo, it might be old and uses a cast wheel (so what) but this is no joke - the GT3076R is a loaded gun! We have used these on everything from 4 cylinder EVO's to RB26DETT and anything in between with great power and spool results
Chris Kambouris it will be OK. I spent hours looking at the g25 and g30 maps to see how it would work with a Honda k series motor but I felt like both of the newer models would a bit outside ideal
@@exportedafrican The new G30-770 is no slouch, its map is nice and wide and caters for the smaller and larger engines without going into surge, aswell as being bale to spool early and make tremendous power - cast your mind back to the GT days, the only turbo that was able to break the 650HP mark was the GT3582R - now the G25 which is 4 family sizes smaller is able to do this easily - and now the G30 break the 750HP mark - the bearing systems are now wake up and light years ahead, its a good thing.
I love how you seemed so genuinely excited to unbox this. Good stuff!
Thanks buddy - much appreciate the comments
Great videos and information, keep up the good work man. I've watched almost all your videos but still don't have a full understanding of matching my engine to compressor maps. I have an awd Honda k24 with k20 head, long tube manifold, and Bell vertical flow intercooler. This is mostly a street car so I'm obviously looking for the best response possible. Somewhere in the 600whp would be my goal. I think I have it narrowed down to the g25-660 or the g30-660. Which would be the best for my setup and what would be the difference between the two? Also what turbo housing would you suggest? Thx in advance for any input
Hi there Greg May, the K24 is far too large to run the G25 series turbochargers with. The engine revs too high and if you calculate your volumetric efficiency of the engine, you will see that the turbo is far too small - even for a low boost application.
You need to consider the G30-770 which would be more suited to your engine size and high RPM band. The turbo will spool fast and be able to carry power through to 8000RPM + without any hassles. I would suggest the AR.83 turbine housing since the engine revs so high. This is a 770HP capable turbocharger and small enough to fit into limited space (compared to a GT35xx for example)
Also Consider the EFR series - dynamite turbochargers with great power potential too.
@@TurboDirectSA Thx for taking the time to reply Chris. I've considered the efr line but just assumed garrett's new technology was superior. Is this not the case? In reality I think response is more important than the number 600 for a street, occasional track day, and playing around at the dragstrip with friends. Looking at the efr line again I see the 7163, 7064, and 7670 to be in my range. I should have mentioned I'll be running e85 and space is not a limitation. So what's the best turbo for me, g30 or a efr? Also twin scroll is an option as I am waiting to buy my manifold upon turbo selection. I've read response will be better with twin scroll but will hurt top end slightly. Is this true? Thx again for leading the blind
@@OnTheWorldWideWeb1 Garrett's latest tech and aero designs are absolutely ground breaking and the turbochargers are proven, but there are options like Borg's EFR setup which is also a serious product, by no means is this some cheap knock off clone of anything - the EFR features a GAMME Ti - turbine wheel head, which is the only manufacturer able to do this, and the turbine wheel is extremely light weight, which caters for and allows the EFR rotating assembly to spool up extremely fast and coupled to the high flow compressors, there lies an answer to the other products in the market. We are distributors for both brands, and i have my personal preferences which is irrelevant to this conversation as i will not allow any bias to affect any advise i provide.
In order to give you the best advise, i rely on facts and facts alone - ill give you the data, comp map plots and factual experience with each in terms of dyno, road/driving experience and/or drag/circuit racing experience with both/either or. you make the decision at the end of the day - further more i have nothing to gain or lose - just so we are clear.
Drop me a line at info@turbodirect.co.za and ill take this off line and we can go from there
Great video, just subscribed! Your thoughts if you get a chance, 3.0L V6, specifically the Nissan VG30ET the SOHC version. Currently making 350hp with a hybrid t3/t4, nothing crazy. Looking to make 500 with minimal lag, been debating a gtx3076r gen 2, but these look amazing, any help? Thanks Chris
CVTURBO - i loved that motor when i was younger, the older 300ZX with single turbo is a low revving engine, and will need something to spool fast to ensure you have power throughout the RPM range - I would look toward the GTX3071R Gen2 or the GTX3076R Gen 1 or Gen 2 -- or the new G30-770 - i wouldn't go large than this for the sake of losing the low down response. You have a large CID engine BUT its not a multivalve setup to head flow and volumetric efficiency on this motor is not very high.
The other option is the EFR 7163 with twin scroll turbine - this will allow very decent spool due to the T4 flanged (its not a T4 volute) inlet, which will work nicely on the V engine config you have. The Gamma TI turbine is extremely light weight, and will make 550WHP at around 1.8-2.0bar gauge pressure.
Hope this helps -
@@TurboDirectSA Awesome i appreciate the response! I did forget to mention the engine has fairly large cams (290s with 0.480" lift) Its been hard for me to compare other owners turbo setups to mine as im sure my cams have an effect on boost levels
@@TurbochargedCreationsbycvturbo your cams will move your motors volumetric efficiency up slightly, but still remains in the G30/GTX30 / EFR7163 size family for the spool and power capability.
Garrett is absolutely killing it in turbocharging industry. Great video on showing off the that beauty of a turbo. Chris how would you compare the gtw34 to the gtx30? .63 housing for both to make it comparable if possible.
There is no comparison - the G25 is dual ball bearing, and will outspool ANYTHING in the same family size and/or up to 2 family sizes larger with the same HP capacity. The GTW is a journal bearing turbo offering which is also capable of large HP numbers, but without the same response and linear response, ALTHOUGH its more than capable of a streetable setup especially for the budget racer sector.
@@TurboDirectSA I see you guys are running that special on the gtw3476 thats why I'm interested in it especially since it is at such a great price which makes it a very attractive buy. Someone I know had the borg Warner 200sx and then changed to the gtw- he saw better spool times and made more hp with the Garrett gtw
@@ThatV12MiataBruh it is in stock -- its your call. What engine is this for?
@@TurboDirectSA I previously had the original Garrett gt35 on my rb25det but it's time for an upgrade now. I feel like the gtw3476 would be just right for my rb25det
@@ThatV12MiataBruh the GTW3476 is not an "upgrade" to the GT3582R as the GT is dual ball bearing, HOWEVER the GTW will spool faster due to the option of the AR48 turbine housing, and the turbine wheel's physical size is smaller - so transient response will be improved, especially on the RB25 (doesn't easily spool up a larger turbo)
Fantastic review Chris,
Im building a haybusa track car for 25min sprint sessions, it'll be getting a 1.5 stroker crank, forged rods and pistons, race port heads ARP bolts, dry-sump etc etc on e85. For an intercooler I'll be sparing no expense either going locally with something custom from PWR.com.au or mezzotech.com
In Australia it gets bloody hot :)
Im looking for a turbo with great response linear torque and a decent top end with a focus on response. I was thinking of some twin scroll turbo for response but am concerned these lovely G25's maybe too big for my application. I could get a billet block and bore it out to a 1600cc if that helps, bare in mind the engine will be revving to 10,000rpm.
What would YOU do?
Thanks mate
Hi matey -- we currently hold the records for the fastest FULL STREET Hayabusa with street tires and full street trim in Africa 1000m sprint we achieved 385.9kmh and 406.9kmh on the texas mile, this bike uses the GTX3584RS turbocharger - the G25 is in fact too small for what you want to do - i would rather use the GTX3076R Gen2 or G30-770 unit which is the latest release. The G25 will make all of its power lower down, be scary to ride (extremely fast boost response) and make no power at the higher RPM range - considering you wont be holding back on spending, the motor and head work will be done, so the engine will flow alot more than a stock unit. The GTX/G30 family will give you alot more linear power delivery and will still be able to hold its own higher up in the RPM range - and will still be capable of over 600HP
@@TurboDirectSA 385kph in street trim! holy crap!! - so even a 1.5L with a G25-660 with 0.92a/r will run out of puff up top? Incredible. I'll look into the G30 series - thanks again mate this is exactly the answer i was looking for👍
@@JH-jo9wt the 1500cc engine IF IT REVS AS HIGH AS A BIKE ENGINE - and flows as much - will run out of steam higher up in the RPM range. Ill make a video of how to calculate this and post it up on our channel for you - keep an eye out for this in the next couple days -
Can this turbo have a external waste gate put on it? If so which ones would work and what all would I have to do to do that
Yes, built into the manifold design, I would run the Tial 38mm or 40mm, stay away from the other popular brands, they are not as good and have boost fluctuation issues.
So I'll be having my VQ35DE build next month. Engine will have Darton sleeves and stroker kit to 4.1L which means that each bank of 3 cylinders will be having 2L. Are twin g25-660 good for my application as I heard they are perfect for 2L 4cyl engines? BTW I wish to reach 800hp easily but the guy that will be building by engine says I should go single turbo. Problem is that I hate turbo lag and from all the reviews on the internet it seams like twin g25 are a turbos for me as they are very responsive.
I should add that he wants to use single Borg Warner 8374
Twins will be laggier depending on the application and HP target. Generally to make 800HP you'll need a mid/large frame single turbo setup and lag normally creeps in. Your specific application requires 800HP and its a large size motor - if you want to "divide up the engine" into the two V's -- i.e 2.0litre per 3cyl bank - this will spool up a G25-660 very easily using the AR72 turbine housings. This will make the required power without hassle at all, more than likely around 25PSI depending on tune, fuel and engine build.
Great review!! I have a bmw 2.8 m50 engine and i run a bw s200sxe, you think the 660 .92 ar is a good improve? Im want better response...
The BW S200SXE is a brilliant turbocharger and uses a TI game turbine blade, which is extremely light weight and spools fast! Changing the turbine housing to the AR83 T4 inlet and Vband outlet will improve spool over what you currently have
Duarte Santos - the EFR wont hold a candle to the G25-660 in spool or power delivery. E.G EFR6173 is capable of 550HP, with the T4 twin scroll housing or the Vband unit including the T25 housing version will not outspool the G25, the power delivery and small package size of the G25 is unmatched bar none.
@@BEYTEK sorry buddy you clearly looking in the wrong places - we have 17 cars with these turbos on, lowest boost is running 1.6bar and the power and spool is untouchable, customers came from GTX2867R Gen1 and Gen2's, others came from chinese rubbish to the G25, others went from hybrid builds, and some came from GT and GTX3071R units - every single one saw boost response benefits, and every single one saw massive power and torque improvements. perhaps type in a search in google and or youtube - youll see PLENTY factual and verified facts supporting the "on paper" claims you mention - here is only one th-cam.com/video/AYzi_5O_lCI/w-d-xo.html -- i can give you 100's more.
Looking to build up a K20C1 type R to around 500hp. While still trying to keep it nice and responsive and drivable. How will this spool compared to the stock TD04 that the CTR comes with?
The Honda motors arent slouches! They flow very well and will easily make the power with the G25 turbo - i wouldnt use the 550HP unit, i would go G25-660 with AR72 turbine housing. the response is GREAT and the power delivery will be linear.
Man that sounds awesome. And it won't be much laggier than stock I would think? Especially with the '72. How the G25s comparing to the EFRs from Borg Warner?
@@alastairstedman7840 The issue here is which Borg can compare with the power deliver to the G25-660? It will have to be at least two family sizes larger, (larger than the EFR7163 which is only 550HP capable) which will not respond as fast as the G25 will. Its a no brainer to be honest
I'm currently trying to get a VW golf Mk7 with the 1.4 tsi engine (EA211) built as a track car. Top end is not my goal, but I just want to make 230-250hp reliably and the stock turbo is not known for reliability. Do you think this application can help me achieve those number without sacrificing spool time over the stock IHI turbo that my car has?
Absolutely it will, however you will need to use the version with the internally gated AR49 T25 turbine housing, the 1.4litre engine is small and youll need ther smaller housing to bring the response into the mix for this engine. It will make ALOT more than your required power across the entire rev range - the turbo is supplied with 1.0bar spring, and will be perfect for this application - contact sales on info@turbodirect.co.za for more info and pricing
Great video:) I recently started to look into Turbo charging my car however I am a bit confused. I was looking into getting the g25-550. Has this turbo got a built in waste gate or would I need an external waste gate. I have a bmw 120i e82 2l 4 cylinder.
Yre able to purchase the G25 series with internally gated housings including the actuator etc
TurboDirect S.A oh great this helped a lot. Would the g25-550 be good for my car??
@@Less27727 The actuator is the pneumatically controlled "cup" like thing which moves a rod axially to open and close the internal wastegate on the turbo. This is what controls your boost pressure ultimately.
TurboDirect S.A awesome would the g25-550 be good for my car?
@@Less27727 What car do you have?
Will this work good on a stock 2jz gte? Goal is 550 on 91octane.. or the g30-g35.. currently have a pte bb6262 .68ar..
Yes but use the larger AR92 turbine housing, the 2JZ is a large motor for this small turbo. If you use the AR72 housing, the power will drop off above 5000rpm.... + -
Chris, please some help.
Engine 1.8t 20v , aiming for 400hp , i will let go the gtx for a g-series.
G25-550 vband 0.72 or wait for 49AR ? Will it spool faster thant vband 0.72? It will run hotter?
Hi there, the AR49 will certainly spool faster but will not produce the same power in the higher engine PRM range - higher back pressures in the turbine stage will prevent the max power capability. If you only looking to produce say 450-480HP then use the AR49, manage the heat by using a decent heat exchanger (intercooler) but also plot a compressor map to see where in the efficiency the turbo will be running on the motor at the boost/power level you intend using it - if you in the max or high efficiency range with the AR49 housing, then you safe in terms of excessive heat introduction into the engine, otherwise opt for the AR72
Would the g25 550 turbo with a 72 AR be a good choice for my porsche 924 turbo with 8.0 static compression ratio? Looking to make around 350hp
Or would it be too laggy? Forgot to mention the engine in the car is a 2 liter
Hi Chris great video, im wondering if you have any experience of how the g25 550 compares to the gtx2860 gen2? Both will make the power i need. Will the 2860 have better spool characteristics?
Kenny, we have a few of these turbos on Michelin cup and Gymkhana grid cars (subarus...) they are exceptionally fast in response, and will out perform and out spool any GTX28xx unit. They are in fact a replacement for the GTX28 series, as Garrett are busy with the replacement of the GT/X family turbochargers and are replacing them with the G-series units. Next up are the G-30 and G-35 .... look out for extreme performance from the same family size units ..... 2019 is going to be exciting!
@@TurboDirectSA that is awesome to hear - my new g25 550 has just arrived, looks amazing. I am wondering if garrett will be releasing any different AR v band exhaust housings? if I have the option to go smaller than .72 in future it may be worth a shot. Thanks for your reply i really appreciate it
@@wabisabi-ken3534 yes there is an AR49 which will be internally gated which will become available early 2019 - ill keep you posted
m.th-cam.com/video/30Pb1CwHJm0/w-d-xo.html
Screamer pipe open at this boost while car is doing 5kmh around a cone - nothing short of impressive! And quick too - I think this turbo is cut out to be everything it’s advertised to be!
I think I'm having a bit of buyers remorse with my gt3076r :/
don't discount this turbo, it might be old and uses a cast wheel (so what) but this is no joke - the GT3076R is a loaded gun! We have used these on everything from 4 cylinder EVO's to RB26DETT and anything in between with great power and spool results
Chris Kambouris it will be OK. I spent hours looking at the g25 and g30 maps to see how it would work with a Honda k series motor but I felt like both of the newer models would a bit outside ideal
@@exportedafrican The new G30-770 is no slouch, its map is nice and wide and caters for the smaller and larger engines without going into surge, aswell as being bale to spool early and make tremendous power - cast your mind back to the GT days, the only turbo that was able to break the 650HP mark was the GT3582R - now the G25 which is 4 family sizes smaller is able to do this easily - and now the G30 break the 750HP mark - the bearing systems are now wake up and light years ahead, its a good thing.
Dude is definitely south African...
4:18 550 or 660 haha
Both - which one would you prefer? G25-550 or G25-660? Both available in external gate aswell as internally gated - oops.