Porsche 996 Hartech Engine - Episode 1: What I've ordered and why
ฝัง
- เผยแพร่เมื่อ 25 ก.ค. 2024
- This is the first video in what I hope will be a series running through the process of getting a Hartech 3.4 to 3.7 engine conversion. In this episode I explain what work I've requested and the circumstances leading up to this point.
- ยานยนต์และพาหนะ
![ลักพาตัว เอาลูกเอิร์นกลับมา...!! [เอิร์นไดเม่]](http://i.ytimg.com/vi/f4NVKlZ5qkk/mqdefault.jpg)
I did exactly this to my 3.4 Gen1 manual coupe. Had the car back approx 6 months now and all I can say is it absolutely transforms the car. Grant and tobias at Hartech are top blokes, no bs just straight facts. Performance wise mines putting out near 340bhp. As a comparison it’s got the slight legs on my pals 997 3.8s. If you’re thinking of doing the conversion, do it 100%, you will not be disappointed
Brilliant, good to hear and I'm really looking forward to it now. Grant has been talking me through it so far and I agree seems like a top bloke. That's good to know about the 3.8s, I guess the weight difference helps the 996 vs that car too?
@@leeevernden exactly right. Those 3.8s were 350bhp from factory but realistically a 15 year old one with 70k on clock will prob be around 340 ish now. Then you throw in the 130 odd kilo weight difference. Much much prefer the drive on my gen1. With factory M030 and with factory Limited Slip diff, it’s feels so much more ‘alive’.
@@marshallsonmotorsltd2101 Excellent, yeah that's what I'm after really, an engaging drive.
@@leeevernden faster and better handling than any 993 I’ve owned and they’re 3 times the money 💰
I had nien lives motors do same blew up after 1700 miles
Please keep the videos coming, it’ll be really interesting to hear how you go.
Thanks, will do. There are already some updates to give ahead of the collection in August so I'll do another video in a couple of weeks time.
Awesome, excited to watch your progress on this. I live in the USA and we have a company like Hartech called flat 6 innovations. They do nikisil cylinders and make it a 4.0 with head work etc. I had mine done last winter and love it. The FSI 4.0 make about 400 hp and 350 tq at the crank with exhaust , intake, and dyno tuning.. You will have a keeper when done for sure! Good luck!
Thanks Rick, that 4.0 sounds awesome! I've seen some of FSI videos on TH-cam, they do know their stuff for sure.
Really enjoyed that video / commentary. Probably a really similar train of thought for a lot of 996 owners. Be great to see how it progresses. Enjoy 🏁
Thanks, it's due back from Hartech any day now.
Hi Lee. It’s good to see you’re enjoying the car despite the FGP Comprehensive Inspection & Report identifying the engine fault the 996 unfortunately has. The front suspension work we carried out for you certainly improved its drive. Best of luck with your plans for the engine. Enjoy!
Thanks, and yeah grateful for the work you guys have done so far, the car will be back with you early 2023 as a 3.7 to tidy up the rest of the bits on the Inspection report.
Good for you mate!
Mine’s down it Atlanta at Flat 6 Innovations getting a 4.3 conversion, can’t wait to get it back!
That sounds awesome! What sort of power does the 4.3 make?
@@leeevernden they really target torque with their build, but the results from their most recent builds would indicate about 475bhp at the crank, perhaps a little higher if they get lucky (the heads and intake pipes have already shown very encouraging numbers).
Power is not what these cars are all about, it’s the chassis balance and overall usability that makes the 911 so great.
More power just means potential for trouble.
@@user-qn6yt3zx3w absolutely. For me it's as much about the rebuild as the conversion, having a fresh start for the engine with most of the weak points engineered out means you can just have fun with it. Apart from the engine and maybe shifter I'm keeping it bog standard because as you say its so useable and I want to keep it that way.
@@leeevernden th-cam.com/video/NvuU2KteGtE/w-d-xo.html
Nice video! My 996.1 is undergoing a full engine rebuild to 3.7 as well. Have it already for 6 years now, but it had a knocking sound at idle when cold and warm. They opened the engine and couldn’t find any bore scoring. The engine looked fine, but the pistons were out of ‘tolerance’ so too much play was causing the sound. The experienced rebuilder said it was ‘just’ normal wear of multiple components at 160.000km. They could see the car is well maintained, but still the engine was worn.
The sound on your video however sounds more like a catalytic converter which is rattling. I replaced mine with straight x-pipe and it still meets the MOT check for emission in the Netherlands. Sounds brilliant combined with headers.
Thank you, you might be onto something with the Cats rattling actually. That's something I'll check before the car goes off to Hartech. If the new metallic rattle is the Cats then I'll get Hartech to swap those out for some 200 cell ones. My current cats are the only original part of the exhaust system, it already has tubular headers and replacement genuine back boxes. As for the knock, I suspect they'll find something similar to yours in terms of normal wear and tear for these engines but my symptoms are more consistent with crank bearing wear as the noise does go away when at higher oil pressures. Out of interest where are you having your 3.7 work done? And what do they do with the IMS?
@@leeevernden keen to hear if it was indeed one of your cats. I’m not a mechanic, but to me it sounds too harsh and loud for a rod knock.
So I decided to do it in Poland at an amazing workshop specialized in Porsche, Ferrari and Lamborghini. It saves me a lot of money compared to the prices in the Netherlands.
They got the parts for 3.7 from a German Porsche specialist. This company also offers 3.9 for our cars, but that means €5.000 more because of the crankshaft from a 997 S(?). That’s a bit too much for me, looking at the value of a 996.
For IMS I got one from a German company as well. To be honest my dual row IMS (I have 1998 model) was perfectly fine after inspection. But I didn’t want to take a risk of having a brand new engine and an old IMS. Regarding the IMS I think this is totally blown-up on the internet driven by Porsche ‘specialists’ who make a lot of money on fixing it for worries 996 owners. The real issue for 996 and early 997 is bore scoring. Especially for cars in colder climates.
@@Jean-Paul_1984 Yeah the rattle is so loud you cant really hear the knock, they are 2 different issues for sure. I can check the cats quite easily with my stethoscope so I'll investigate that soon. Agreed on the IMS thing, but the market here in the UK at least has IMS solution cars commanding a premium over original IMS cars no matter the situation. Mine is also dual row currently, I read somewhere they have a 0.5% failure rate so it's nothing really. I think you are right to stick with 3.7, these cars have a good power to weight ratio anyway, just a bit more than the 3.4 would be perfect I think. Good luck with yours, hope all goes well.
Mines an '016mt coupe in meridian metallic, very similar. Its got a few more options, 3 spoke wheel, headlights r litronic, but otherwise sister car. We don't have hartech in USA, sadly, but there are good options. Knock on wood, mine is not bore scored and so I may never have to do rebuild. I might anyway but not immediate. There are long waits here for rebuilds, and some metals are getting harder to source for the parts manufacturers...will watch please keep sharing.
thanks, yes I am anticipating some delays once Hartech get the car as the work is so extensive there are bound to be hold ups with parts/materials somewhere, but that's fine it'll be worth it in the end.
The Gen1 996's are superb, as are the Gen2's . I'd want the amber lights put back on personally. I was looking for the same as yours but ended up with a very low mileage Turbo coupe manual which is fabulous.
Nice, I do like the turbos. I think my car had these lights from the factory, it's a late '98 build but '99 year car so pretty sure that's the first clear light ones. Plus these lights are my favourite but I do also like the ambers.
Also I think Gen2's look much better as wide bodies, the more aggressive styling doesn't suit the narrow body in my view.
Nice video commentary, will be watching with interest, my 1999 C4 manual has done 183k so I could be going down he same route, would love to know the costs, which I’m sure you will divulge on future vids
Absolutely yes I'll go through it line by line, the aim is to make the series as useful as possible to anyone considering doing the same thing.
Nice mate, I'm thinking about getting a hartech 3.7 in my boxster!
Blimey, now that would be epic!
@@leeevernden I have a bit of a vision to build the rowdiest 986, complete with carbon fibre cayman hardtop, rollcage and GT4 style spoiler. Gonna be a year or two of saving first. Looking forward to seeing how your build goes, so I've subscribed :)
@@ett_baer Much appreciated. That 986 would be a rocket, should handle pretty nice too setup like that.
@UCJTjgwQ4kCjgv8mYrI3QBNw I kind of feel the same about the 911, it wasn't used much for the past couple of years so I have a few problems to deal with but I know how good it will be in the end so it's worth it. Good luck with the 986, good thing you bought one when you did, values will surely rise in future.
Good luck and I hope it all works out, that’s a big investment so the car ought to be perfect when you get it back. I’ve had several of these cars, they all make a different noise or have some type of rattle or knock. The car looks very straight, what’s sort of mileage does it have?
Thank you David. The car has 87k miles on the clock, but has already had major engine work back in 2009 when at 30k miles. Apparently it had a damaged piston and the engine block has been relined - so I'll be interested to see what Hartech find in there. If only I could find/talk to the previous owner who had it from 2001-2021.
It's worth changing the starter and y cable which is the wiring for the starter too. These get tired with age and you can get a lazy starter when the engine is properly hot. Most cars of this age will be still on their original parts and its a reasonably common fault. It's a pain to change with the engine in, not impossible, but obviously a doddle when it's out.
Thanks, will do.
That rattle doesn’t sound internal. Sounds like exhaust clamps rattling or something much smaller. Have you sent hartech a video of the engine noises. You might not need the rebuild just yet and you might be able to drive it. Engine mounts are the first thing I always do and have a set of RSS semi solids with less than 100 miles in that I need to sell. Love silver over metropole, I’ve had two of that combo 996.1 now. I really would challenge you on a rebuild to 3.7 for two reasons: 1.) the 3.4 engine is perfect for that car as it is. 2.) I can’t hear any sounds that make me think it needs a rebuild, so why would you spend that kind of money. I honestly would get it trailered to your nearest specialist and get them to inspect it. Might be a cheap fix and just drive it :)
Yeah I will do another update in a couple of weeks but the rattle noise was indeed nothing to worry about, I did find that quite easily in the end and the car is back in use. I get the point about the 3.4, I have wrestled with that but I feel like I may regret not getting it further down the line as whilst the engine is being rebuilt to a ludicrously high standard, what's the point if the end result is exactly the same performance, I may as well allow Hartech to make the best engine they can from the 3.4, and that's the 3.7. It's not really about the money, the work is only expensive in relation to 996 prices, I want the best daily drivable analogue 911 I can get, for me the 996.1 c2 is just that part from the reliability issues. On your second point, I will put a recording of the knock in the next update, it has already been to Friends Green Porsche and they said the engine was - and this is their words - 'Knocking it's tits off' 🤣. But now I know the engine won't imminently explode I will tell Hartech to run it up and give their opinion before they do any work, that will just give me a safety net of a second opinion just in case friends green missed something silly.
Lee, take a look at your tailpipes. They are low. Engine mounts are likely shot.
Thank you Nathan, I'll add this to the list for Hartech to do.
Isn't the 996 the one with the IMS bearing issue? :/
996 and some 997 yes, although mine is an early car with the dual row bearing which is considered pretty strong.
May i ask the price you managed to get the car for when you bought her? 🙌🏻
I didn't do very well there actually, the garage didn't think the noise was bottom end, they kept saying it was the tappets so only went down a grand. I bought it for £18k. I didn't mind too much though as the other ones I was looking at were £22k and up.
@@leeevernden i will follow with interest i have an identical car from 98 and also looking at a 3.7 upgrade
@@AlexLondon Well you have good taste then 🙂, hope this series helps explain what's involved, there isn't too much info out there other than the bits and bobs on the Hartech website.
What’s the cost of the engine rebuild with the 3.7 conversion?
Varies from customer to customer but Hartech estimate between £8-10k plus a couple more for the 3.7 conversion
Correction, mine came in at £13k plus the vat
The video of the tapping noise when hot is exactly what i have on my 99 3.4 996..i have no smoke car drives without fault..and is silent when cold..i know it had a bottom end rebuild about 20k but it taps when hot...very strange ..im wanting to sell it but everyone's just gona say it has bore score..what a pain!!
I feel your pain. Mine had a bottom end rebuild at 30k and had steel liners put in so 100% my issue was not bore score although that's what everyone always goes to. In the end not one single guess was correct as the main suspect after the tear down was small end bearing wear which I'm told is virtually unheard of.
@Lee Evernden i thought mine was a sticky tappet..iv been standing behind it before and the noise just disappeared all of a sudden...then next day it was back ...its a nightmare
Space Grey interior?
Metropole blue
whats the name of the Porsche specialist in the North Of london that ships engines to Poland to be FULLY rebuilt for £6.3k and they arrive back 8 days later in the back of a van :-)
Put a new starter in as well mate you can't get to it on these cars with the gear box in
Noted, will do.
Yes you can take off top intake pipes and you slide it in…it’s tight but the new unit will go in.
The sound on the video sounds like Water pump failing
🤷🏻♂️ that’s all
In the next video I'll put a clip of the actual sound I'm trying to get rid of, you cant really hear it in this video over the rattly sound. Plus the water pump is only 2 years old and hopefully should last a while longer.