My name Wolff, i am from Germany Viernheim and thx for having me here.

I got ~2.5l conversion nearly done with spending a lot of time into that work and im finally tired but also finishing still the conversion. I make a lot of research for different parts which can be used as alternate parts and fit them without any modification with the engine builder. i used 83.2 cps piston and the engine block from a stilo 2.4 as well as the head from 20vt and a mls 1.5mm so i got finally a displacement of 2.46L. Cylinder walls are pinned so its a light closed deck variant. The bigger Problem was to find a fitting clutch for the targeted Power of 450hp - 500hp and i found a Clutch and a cover set from mardigras in UK (Any Experience avalaible about them??) but its not listed on their Website but its a ceramic one, i bought that and installed already and yes i know the twin clutch but it is hard step of 1.500 € for a clutch and i dont want to go higher than 500 hp, the power and torque will probably be adjusted according to the clutch, but im very wondered about the situation in the hall of fame with some build with organic clutch and 400hp+ i know the relevant part is the pressure plate of the clutch and i compared that with original one and the mardigras clutch https://www.mardigras.co.uk/product...amp;category_id=2TSKDCXUX6CXKT2CLUGWIY5S this is the kit but not s2s s2e is the one i got and which is not listed on their site.

Now my question is a i need a file for the stock ecu and 630cc injectors and the displacement of 2.46l is there maybe some people which got already a file? I got a standalone ECU kdfi1.4 so i can use one of them, depending on where I find a successful result, the problem is that the next person doing this kind of tuning is about 400 km away from me. I realize that not every file is universally applicable but that would be a cool template to have that one.

Quick Specs:

Stilo 2.4 Block
Stilo 2.4 Crankshaft
Forged connecting rod
CPS 83.2 Piston with ceramic coating on the Surface
15 row oil cooler
ACL Race bearing
Pulsar 2871 gen2 0.82 ar
Stud bolts 13.9 grade
6 Paddle Clutch and reinforced pressure plate
630cc Bosch Injectors
Big fmic
3" Downpipe and exhaust
Intake side of the cylinder head machined
Larger exhaust manifold
Pinned Cylinderwall
320l/h walbro fuel pump

Hi Wolff,
Search for a user called Stichl who is also in your part of the world.

He has done all of the subjects you have questions about

Cheers Jamie

Thx you Jamie

The MardiGras clutch (which I expect will be made by Helix) will be limited on torque, not power. I was running nearly 500bhp / 520Nm through my Helix organic clutch. It was close to the limit, but never slipped.

I expect a 2.5 litre build will have more torque than my 2 litre ever had, so you may have issues.

Another question - is a GT2871 going to be enough for 450-500bhp? I think it will be right on the edge of its efficiency island, even with a 0.82AR housing. a 2.5 litre will spool it up very quickly, due to the 25% increase in airflow, but it also means it will reach its limit quickly. I expect it will be punchy, but will struggle at high revs where it simply cannot flow the air needed to make 500bhp.

By the way - congratulations on your English - very impressive (especially for most Brits, who are too lazy to learn another language and just expect everyone to speak English!)

Hello Nigel, thank you for your response, and thanks for your comment about the language, I try my best.

I used the Pulsar 2871 Gen 2. They use the same labeling as the Garrett 2871R, and I think its comparable to the GTX 2871R II (here is a link for the Pulsar: https://www.akr-performance.de/p/pu...dual-v-band-082t25-adapter-102127252#top).

It was a lot of work, especially the relocation of the oil filter to another place and pressing the Dash 10 line. Next time I will surely use the 2.0L for the turbo, because during the rebuild of the engine I realized that finding fitting parts like bearings etc. was problematic. I found some that fit well from ACL Race, but the limiting factor is not the engine, the engine could easily run over 600 bhp. The next weak point would then be the transmission, and I already found a solution for that. After that the clutch will be the next problem, and i am figuring out whether to use a clutch cover from a Supra MK4 and make an adapter for the bigger hole in the middle. And once I solved that, the next weak point will be the axle shafts.

I know its possible to go 4x4, but with 4x4 I would miss the emotion that i get from the manual transmission. So i understand that the sensible limit is around 450 bhp, but Iam still considering doing all of that after finishing the season for this year.

I am still fascinated by the guys who already did this 20 years ago. With that much power you were the king on the streets, and there were no competitors, or only a small little range of them. Today itss not the same, its still very fast, yeah, thats right, but its time to go over 500 bhp, stable and resistant to gas evolution at full power output.

@mose571 hi im Morris from Germany and i can tune your car but with original Bosch Motronic.
I tune with emulator and it is not a problem for me to tune the stock Ecu.
When you are interested write me ob whatsapp.
015757052002

Cheers Morris