How To Run 90mm LS3 Gold Blade Throttle Body On Gen 3 LS1 VS Silver Blade C5 Corvette
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- เผยแพร่เมื่อ 1 ต.ค. 2022
- It is commonly believed that you can't run an LS3 Gold blade throttle body on a gen 3 411 PCM and that you have to run a Silver Blade LS2 unit. It seems with a simple tweak in HP Tuners and NO wiring changes that may not be the case after all.
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Finally someone can show us how it's done!! When I was shopping for ls2 silver blade I came up across bunch of gold blades definitely alot cheaper then silver blade, buy I never seen an actual video someone using a gold blade and making it work, great job man!!
Put another trouble free 100 miles on it today. :) Thanks Boggs.
Welcome back.
People keep asking if I'm back and I haven't really had an answer, but yeah, I'm thinking I'm back!
👍🏻😎 The relentless pursuit of perfection can be a pain in the ass, but it's well worth it when you get there.
Thanks JT. It's getting pretty fun to beat on this thing but the 5.50 a gallon I did that Gas is getting kind of old lol.
@@PNW_Car_Mods I know what you mean. Since they went to 15% ethanol a few months ago, I have really noticed a drop in fuel economy. I've decide that I'm only going to buy the non-ethanol gas from now on. The extra $2-$3 a tank isn't going to be that big of a deal considering I'll be getting about 30% better fuel mileage than with the 15% ethanol blend.
Sounds good! Love the whine.
Thank you sir. I find it to be just about right from inside the cabin. You can hear it when need be but it's not obnoxious like a hellcat. Since blowing up the old engine I've really set out to make this new combo not only very powerful but also just more comfortable and easy to drive. I want it to be easy enough that anybody can drive it without having to go through a drivers meeting lol.
Hey Ryan, how did your homestead fare through the storm? I hope you all are OK.
@@PNW_Car_Mods we were 10 miles from the eye wall... couldn't have gotten luckier. No major damage... lots of wasted time doing cleanup though... the place was a mess.
@@JackofAllTrades1 Great to hear!
@@PNW_Car_Mods I've not had the inspiration to put together a video lately but you are really rocking it. I've been messing with the 455 alot lately, it just doesn't idle the way I think it should. I'm even going as far as installing an o2 sensor in it this weekend to see if it will help with the tune.
Thanks!! Exactly the information I am looking for to swap the throttle bodies to my LS3 swap in my C5.
You're welcome. Are you going to use the reluctor wheel conversion box to make the LS3 work? I have a buddy with an LS3 C5 and since he had his engine apart he swapped reluctor wheels so he didn't have to use the conversion box. Good luck on the build!
@@PNW_Car_Mods I did the wheel swap when I built the motor. I used the Casper harnesses for the knock and cam sensors
@@bionic2011 Nice that is the way to go if you can. I've not heard the greatest things about those conversion boxes.
@@bionic2011 That number sounds familiar but I would have to do some homework on it. This is the one I bought new from Summit. www.summitracing.com/parts/ADO-19420707
What exact wire harness adapter did you use? According to Caspers, their harness is only for 2008 and older. They cannot confirm it will work on newer model years, they do not wrench on cars, only build harnesses. They did say theirs works in silver blade.
Good video, great information. I'd be nice if the silverblades weren't stupid expensive but I digress.
I wish I would have bought a dozen of them 10 years ago. I'd be rich lol.
Having a silver blade throttle body almost makes it not worth it without throwing a ton of other mods while switching it to a gold blade purely on price alone
Oh my !!!! 💪👍❤️
Smiles per gallon.
Subbed 🤘
Thank you RARW. Love that handle!
Thanks for posting this, super helpful.
With the Gen 3 pcm and 90mm throttle body, where did you find reliable airflow tables to start out with?
Just start from a factory tune that is closest to what your combination is. In my case the we grafted in a 2003 Z06 VE table into the 3 bar tune in the N/A part of the table. That got it running where we could start logging and correcting the VE table.
@@PNW_Car_Mods Thanks for the reply. Did you make any adjustments to the ETC airflow tables though to correct for the 90mm? I thought the throttle response would be weird if you left the stock LS1/6 tables in place as the 90mm obviously let's way more air in at lower % opening?
@@sohcd16y8 yup. I should have mentioned that in the video but I didn't think about it as I'd already been running the silver blade for years. The scalar is set to the common 90mm .0192 number. No problems.
@@PNW_Car_Mods just came back to say thanks. Got my LS3 Crate Engine with LS3 Gold Blade TB running in my C5z with the info you provided.
Any updates, tune changes, etc?
beautiful beautiful noises! good info, katech does make a 103 for the c5 now but it is 679$. mine will always act up after a flash and sometimes run lean just for a bit. have you ever had issues with the L terminal circuit? i will get an ses L terminal circuit code but only when i am wot for a few seconds.... need to look at connection at pcm but dammit why in the fender...
Even on my build a 103mm would be overkill by quite a bit. I would need so many other mods and porting work done to take advantage of it. and most definitely cole these cars do weird things for a bit after loading a tune. sometimes more than others with no explanation lol. I always wait to start a next datalog especially for VE until many miles have been driven and it's fully up to temp. Never had an L circuit code and it sounds like I don't wanna lol.
do you notice a better throttle response with the newer tb?
@@colemcmeans7809 I don't think so cole. Hard to tell if there is a difference. Got another couple hundred trouble free miles on it since the video was posted.
What about running a gold blade LS3 throttle body on a 06-07 Corvette?
I am not sure on that max. That is a totally different generation of PCM. You might have to do some searching on the forums.
How’s that catch can setup working out? Looks like Holley covers vented to your can?
I don't know if this new engine is tighter as far as blow by which would be kinda weird because the ring gaps are opened up with this new engine. All I do know is the blower is way way more dry inside than it ever was on the old engine. That being said I am very happy with the Mighty Mouse can. The one thing I don't like about my current setup is it's a pain in the ass to add oil to the engine. I have to take the catch can hose loose every time.
Run into REP at any point since this? Put a gold blade on my C5 with a cam swap. Runs pretty reliably with that change, but every now and then it'll throw REP on a normal street shift. P1515
Not a single time so far. Got about 1500 miles on it and just did 3 WOT pulls on a dyno last week. Still working perfectly. I've heard that besides getting REP at wide open that it's possible it can also come from the brand of harness adapter used. Have not been able to verify the harness adapter scenario though. Just hearsay at this point.
@@PNW_Car_Mods Might be related. Cheap amazon adapter harness that was pinned incorrectly and I have to re-pin it... Think I'll just need to get it to happen in a datalog and see what's going on. Thanks!
I’m about to put a 92m throttle body on a ls1 with adapter plate any help you caould tell me would be appreciated
Are you talking about putting a 92mm on an LS1 Intake manifold? I personally would not do that. a 78mm throttle body is good for upwards of 450 wheel horsepower. It is rarely the restriction.
Is the c5 corvette throttle body connector a 6 or 8 pin connector?
Victor to run any of the 4 bolt 90mm throttle bodies on a C5 Corvette it requires an adapter harness. Commonly available from lots of places for under 20 bucks. On the stock C5 throttle body there are actually two connectors. One for TPS and one for the blade motor. These get merged two into one from the C5 harness to the new 90mm TB single connector. Hope this is not confusing.
Hey, im back here again, so im having some issues with my ls3 throttle body, I got REP right away before I even started it, so started it fine except no pedal response at all , so when i checked when the car is off , boot removed the blade doesn't move at all when i press the pedal,
That would be a hard one to troubleshoot without being there in person. Do you know the history of the throttle body? is it new? Used? What adapter harness? Any bad connection will give instant REP and no throttle.
It's all brand new, I think the harness I purchased while back from Amazon, unknown brand, I think I'm going to get the caspers one to give it another shot, also I forgot to mention the throttle body I was trying it was for like a 2010 silverado truck, it's ls3 90mm . I also still have brand new gm ls3 gold blade when I hooked it up yesterday, It works the throttle moves fine , the only problem with this one I can't install it because I have this 92mm FAST intake manifold it's longer then the stock so when I try to install it , the plug on the throttle body hits the serpentine belt tensioner , see in your situation u have a supercharger with a snout that kinda offsets your throttle body, for my case to clear their belt tensioner I would need like almost 3" spacer adapter, so I'm kinda stuck
@@boggsd4067 any chance you could flip the gold blade to get clearance? Even if you have to extend the adapter harness?
I thought about that, my harness will reach fine only issue , power steering reservoir is in the way , not it has to be relocated, no really good spots to do that, and even wille I was looking close if I do that, the bulky part of the gold blade looks like it might hit the alternator braket
I just checked again, it might clear it when I flip it if not I have a 1/2 thick ls throttle body adapter that I had to use for the truck throttle body , so I can just use that, now I might just have to be creative on making this custom braket for the power steering reservoir, this is might be my last resort. Because I literally spend all day in my garage trying to make this truck throttle to work and no luck. I flipped the wires so may different ways and probably turn the ignition on over 30 times to test, still keep getting P1515 code or P1221..I think its probably something have to do with pcm , because I can't find a darn this online that shows the wiring diagram on this truck one, I only found one picture shows what each pin the connector is, not sure if it's correct or not
Not even a silver blase LS2 TB works on my C5. Is there a need for tune even with that one? I bought a Dorman one so... I also have a gold blade LS3 TB (aftermarket WCYOTECH) and it throws the same Reduced Engine Power code as when I put on the LS2 Silver. The car does run with the LS1 Stock TB but burns ALOT of fuel (assuming that is the case since I have bigger injectors now and didnt tune them yet).
You have to run GM throttle bodies. No exceptions. I have tried two of the Chinesium silver blades and they won't do a damn thing. no response. Never even entertained trying a no name gold blade. Get a real one and it will work. Be careful running that engine with injectors and no tune. You can trash the cylinder walls easy enough. Get a GM throttle body and get it tuned. It will all work.
I bought a dorman one, and it had no tps response. Need genuine only
@@Knackersjewels just saw this, saved me the headaches. I was going to buy a dorman siver blade era throttle body. OEM only damn that sucks
I have gen 3 truck electronics "8 pin" and looking for a tb larger than stock. My new intake is a 4 bolt 103mm. I really dont want to change ecms and a bunch of electrical. Would a 90mm ls1 tb use the same plug? Also are they 3 or 4 hole?
I don't think it will work. The LS1 is a 78mm 3 bolt with separate blade motor and TPS connectors. The LS2 LS3 90mm is 4 bolt and a 6 pin connector. You may have to do some research on the LS1 Tech Dot Com.
What about the 3 to 4 bolt adapter plate and the xlink adapter 8 to 6 pin wiring harness?
Hello, I have a 2004 CTS-V that I am looking to swap to a Gold blade throttle, as silver blades are just too much money. Do you have any idea if an older LS1/LS6 PCM would have the same success with these tweaks? Additionally will the adapter harness for an LS1/LS6 to LS2 work for an LS3 throttle?
The only reason I can't say for certain if it will work in the same manner with the same HP tuners tweaks in your CTS-V is because I think your car has a different PCM in it than the early Gen 3 PCMS 411 or P01 style. I'm sure somebody out there knows. Yes I am using the exact same adapter harness as when I had the silver blade on the car. No changes to it.
I'm running a gold - blade LS 3 TB on a 2003 Z06 with a FAST 102 intake. The engine has new heads, cam, valve train, etc. With the adapter harness it is running pretty good. I occasionally have some stumble on clutch-in, but overall it runs really good. I think the engine in your Caddy is basically a C5 ZO6 engine.
Did u ever do the ls3 tb on the caddy?
@@TwistedAutoGarageno, couldn’t get the tune tweak to work right, ended up going with a ported LS2 throttle body.
Are TRQ silver blade 90MM throttlebodies a good choice for stock 2004 GMC Yukon L59 vin code z? I know I need the adaptor by x link (8pin on the truck 6 pin on the TB) but don't feel like dropping 300 bucks on a TB I spent 60 on. Are there any alternatives when it comes to the adaptor that aren't so pricey?
That is out of my realm of experience. I have a new TRQ Silver blade and my 411PCM won't even recognize it. In my case I am using a cheap 25 dollar harness adapter to go from 78mm Corvette throttle body to 90mm Corvette throttle body.
@@PNW_Car_Mods that sux that the pcm wont even see it! What's your take on the xlink adaptor? Is it worth the price?
@@budthechud3408 I can't personally think of a reason to use it but that doesn't mean it doesn't have a place out there where it does what it claims.
Factory ECM's and X link are not compatible with most aftermarket TB's. One reason GM silver blades are so expensive.. it's nice to see the ls3 TB working with a factory ECM
The Silver 90mm throttle body will work with the LS1 to LS2 adapter. To run the adapter on a truck application 1999-2002 (which uses the exact same throttle body and TAC module as the LS1 minus it facing the opposite way), you need to switch the two wires inside the 2 prong plug which will reverse the current for the opposite direction of the same throttle body on the truck application. This allows it to run on the Stock PCM, because the adapter makes the computer think it’s still plugged into the factory throttle body.
Whats the gain of the gold blade
Nothing. It's that they are still available brand new GM. Silverblades are basically obsolete.
So can this be done on an ls6?
Absolutely. The LS1 and LS6 function the same. The PCM in my car is actually from a 2003 Z06.
If the schematics are the same, an ls3 tune should of did it for you minus the fuel tables
I don't believe that is possible. The LS3 uses a completely different operating system in a totally different P/N PCM.
What’s the point of swapping a 90mm for a 90 mm lol
So you didn't watch the video at all? Not that I really give a crap either way.