Mk2 Golf Gti 16v - The Quest for 200bhp 1/3
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- Опубликовано: 8 сен 2024
- #youtube #car #quest
Can this be done? well yes its possible but can I do it with my OEM set up.
172bhp - 188bhp - ??
The first episode is focusing on fuelling, getting it spot on by utilising a MOT calibrated tester to see where we are, 3.5% is the UK limit for my car.
Slight shock to the difference that was made having the crankcase breather pipe disconnected, safe to say that this has been sorted by a "catch can" type set up so the engine is not breathing any oil and combustion cycle by products. cleaner air in is a good start as that alone will increase the combustion thus increasing cylinder pressures = more power.
Next video will be a follow on including a road test to check AFRs now I have fixed the AFR guage.
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Very interesting! From memory the CO adjustment is pretty sensitive.
A couple of friends (one ex-TSR) have K-Jet valvers that made knocking on 200hp at stealth back in the day. 9A blocks, Flowed heads, 4 branch, split duration 268/276 Schricks, plenty of ignition timing & 7800rpm ecu crystals!
My own was 45mm Jenveys, Schricks & DTA on a stock 9A with same rev limit. That was ~200hp & we were all very equally matched!
Yes it doesn't take much adjustment to throw it out.
RR is booked for early july so hopefully I'll get 200, if not it'll still be fun trying
You're my MK2 hero.
Great... Looking forward to the next one.
Sound like a beast over 4k rpm's! Excited to see the next video and congrats for all of your work!
Thanks, yeah it sounds fantastic 4k up its very addictive 😀
Look forward to ignition map work.
Great video as usual! Been following your videos for a long time.
Scirocco 16v KR🙂
I do love a Scirocco 😁
Really wish we could have a chat group going on with this issue. Years ago I had a TSR 1.9 8v making around 145bhp in a MK1. Now I am taking my 16v also out to 1.9, although l do have a spare two litre crank( but not sure if I will use that), and with the overbore to 83mm with 11.1 compression ratio forged pistons, it could be just over 2ltr((just to be clear, that’s a combination of 83mm pistons with the 2ltr crank) But I like the free high revving character of the 16v, and using the 2ltr crank would make it a long stroke motor, and you would not want to push it much past 6500, but lower in the revs range it would be a torque monster. With the overbore to 1.9 on the standard crank, a fully gas flowed head, high lift cams around the 270 degree mark(fast road cams), a good four branch manifold, with possible forged rods and pistons, fully balanced with a lighter flywheel, also with the fuel system tweaked, it should be a mean motor...As a none track car, I would be inclined to use cast pistons(10.1) and rods as I don’t really plan on going over 7000 rpm, and these would be way cheaper than forged items, but I am having a hell of a time finding these oversize pistons in anything over the standard 81mm. One issue that TSR back in the day fixed with the 1.9 was to fit a lower temp radiator thermostat as the overbore tends to thin the cylinder walls and the engine runs hotter unless you use the lower temp thermostat. I am in the early days of starting this mod and I have just removed the cylinder head and will probably start and finish the head first, and then move onto the block. I already have a MK3 8v GTI gearbox in the car which does tend to affect the acceleration some what, but definitely makes for a more relaxed cruiser in 5th gear. Going back to the standard 16v box, would definitely help acceleration, but with the modded motor and using the MK3 gearbox, there would not be much in it. Looking forward to the next episode.
Pistons are a pain now, mine are JE Forged are an exact replica of the Stock KR but 83mm but just shy of £800 😬
One important part is making sure that the piston to head "squish" is 40-45thou area mines 43 so bob on, to little and you could run into piston to head contact, to much and you will have pre detonation issues.
Also with higher compression you lose the ability to add more ignition timing, mines just over stock at 10.5:1
@@GreyGooseRestorations the 11.1 did worry me, but 10.5 to 1 sounds great. Over here in Europe, I have a pretty big range of forged piston manufacturers to choose from, but paying in Euros will be a little cheaper....at least I hope. Thanks for the info👍
I’ve heard of guys using BMW M43 pistons and PD130 cranks to get to 2.1L on a 16v. BMW pistons already have valve cutouts and are 84mm. I’ll try and get some more info if you’re interested.
Ooo sounds intriguing 🤔
Hi Mk1,Maad. Sounds interesting, but in the end I decided to stick with just the overbore rather than adding the 2ltr crank. The reason being, the 16v is a rev happy engine and the 2ltr conversion is a bit of a long stroke setup, and taking it out even further with the longer crank to the PD130 would make that scenario even worse. It you used the MK3 8v GTI gearbox like I have, it would possibly be a little easier to live with the longer gearing. Off the line grunt/torque would be amazing with the 2 or even 2.1ltr and I think this setup in an a 8v possibly with bigger valves would be great, but as I say, in the 16v, using the high rev capabilities with higher lift cams for me would be the ideal. Another issue people don’t talk about too often is harmonics and vibrations. Which ever style of engine comes out of any factory is well balanced, but when you start changing cranks and bore size, this issue is even more important. As for boring out to 84mm, on a 1.8 8 or 16v, that would leave the cylinder walls very thin, but not sure about the 2ltr block, that may be okay. I don’t think I would personally go beyond 83.5mm, maybe even stopping at 83mm, but that’s just my personal opinion. As we say, to each their own.
I’m just about over the 1.8 8v in my gti id love to go with the 16v 1.8 or 2.0
Makes a great driving car, not to say that the 8v can't be made into a quick car
200BHP ❤
Love this, where you get all your knowledge from?
Thanks, self taught over the years
Hi! I have a 16v 9A engine that I converted to a K Jetronic like yours. However, I'm confused as to the what should I use if should it be a WUR and fuel pressure regulator from the KE Jetronic. Please guide me through. I am familiar with the 8v K Jetronic system. Your help is very much appreciated. Thank you.
If its converted to K-jetronic then you'll need to use everything from K-jetronic inc WUR. Just fuel feed from pump to metering head as the K-jetronic has system pressure regulator internally whereas the KE has the external regulator
@@GreyGooseRestorations thank you...I'll do this..I appreciate your response.