Hi,


I'm guessing your not based in the Uk ?


Only if you were there's a guy that can Live map your early ECU.
Which it would seem is very rare?




You can change the camshaft and shave the head and then use all your stock ECU, AFM, Injectors, Dizzy / coil etc... And as long as the engine was in good health you'd have a good chance of getting 150 at the wheels...No need to change anything else..


I got 205bhp / 205 Ft Lbs (Flywheel figures) all from the above stock 2.5 ECU, Ignition and Fuelling, but live mapped in the UK


The engine is a Short stroke (rebuild) 3.0 block , 2.5 crank & cylinder head so the capacity is 2.7 with a 274 Web Camshaft and a 30 year old ECU and AFM !




Roger
www.924srr27l.co.uk

 

In my NA I'm running 951 valve springs and stock lifters but I'm sure NA springs would be fine if you don't bounce off the rev limiter at every shift.

My car isn't dynoed yet but it's probably at around 150whp. Nothing crazy, although I am on a Megasquirt ECU and have a street tune. It's very drivable and responsive, no other NA I've driven really comes close.

 

Pity your not close or in the UK also!
No other Na I've driven or heard about (2.5, 2.7 8 valve) could come close or be as responsive, or drivable as the concoction I've got under my bonnet!


Stock 2.5 N/A Valve Springs & Lifters and no requirement at all to bounce anywhere near the 6450rpm Limiter, most of my shifting ends at 4000rpm or less!....


190 Ft LBs @ 2850rpm is Grunty for a N/A with or without a Bosch AFM !


R

 

My entire setup cost me under $1500, if i recall yours was 10x+ more. I'm not starting a dick measuring contest, just informing OP of what's possible relatively cheaply.

 

I think it's a Europe vs US thing...live-tuning of the Motronic.
I've been in the 944 world for 11 years and I've never met or even heard of someone who does live tuning of the Motronic DME, even semi-professionally.

There are people who can burn chips, sure, and Rogue_Ant was able to crack the code so people can tune it themselves, but that was maybe only 4 years ago.

But I've never heard of someone being the "go-to guy" to tune the DME on a dyno.

 

I did dyno tests of stock, MAF conversion, modified MAF conversion, bigger throttle body, and advanced stock cam.

You can see those results in the "V2Rocket go faster thread" if you search for it.

The 944 really, really needs a hotter camshaft to make power. Everything else about the engine as stock is fine for aiming at even 200 hp...but it really needs a cam.

 

Mmmm I'm discussing the stock system which is good,.. very good and my entire car to buy with all the stock Bosch ECU ignition and fueling only cost $2000!


Quite where you think it, or the Web Camshaft cost $15,000 I'm unsure?


Just Informing OP of what's possible, with his current stock set-up


Only a Trick Live Mapper required, this is the hard bit.




.

 

Yes you have now, we have him in our country.....


He's a very talented guy, and as you can imagine in huge demand mostly by the Racing fraternity


You may of seen the 1981 Le Mans 924 GTP 2.0 Turbo car was recommisioned and Fully Restored by Porsche GB this year,


You can guess where it went to be mapped! (Chip Wizards)


R

 

Well yes, now I have...
So hopefully 944-ists of the future will take up your guy, or maybe he can offer mail-order tunes (if he doesn't already?)

But for me...I am too far gone from the DME to require his services, and I can't drive across the Atlantic

 

Yes, I believe the 274 Web Camshaft I have fitted has contributed greatly to
the car's performance and tune.


As also the Extrude Honed Inlet Manifold and the small bore 1.88 ID Exhaust.


Everything all adds up..

R

 

Mail order is not going to work!


He needs to plug in his box of tricks and then re-program the car live etc...



He took 8 hours to do this on mine!

R

 

v2 rocket, that thread was exactly the type of thing I was looking for, i have searched but without much success.

Someone asked and I'm stateside. 150whp would be a cinch if I were on the other side of the pond!

Thanks for all the input everyone. So many threads I searched seemed to die out in flames of "it's not worth it for the NA 8v," but it seems to me that it's more than just bolt ons, which tends to scare people off. But it doesn't have to be megaexpensive.

 

https://rennlist.com/forums/924-931-...er-thread.html

 

Does anyone have an opinion on the pros and cons of the Webcam 274 versus the Milledge S3-14? Mine is an '88' with euro pistons and Linsey/Rouge MAF. Otherwise stock.

 

Not to hijack the thread or anything, but Im always amazed at the number of people who recommend changing out the throttle cam. I also dont understand why the maf kit cost so much...