JC951

that'd be RWHP...

and i believe the motor has stock internals and nothing ported or polished. i didnt see anything of the sorts in the receipts, i believe the motor was just sent to a machine shop and redecked for a clean even surface after years in storage...i'm going to somehow try and figure out what sort of hotside is on it because the receipts say that the turbo was swapped over and resealed...would a #10 hotside sound right?

Josh B

Very interesting. About a year ago I came across another 951 with that same MAF setup that was running hard to believe dyno numbers. That car ended up wrecked but from what I was able to gather it is a 997 MAF and was put together by a shop in Savannah.

Here is a link with pics on page three... https://rennlist.com/forums/944-turb...s-and-k27.html

Those are great numbers you are putting down and a/f curve looks good - does seem to be a little lean right at first. I would be very interested to see what you find in those reciepts. Do you know if you are running with the stock DME and KLR computers? I am sure they have chips in them but I am trying to remember if the other car I saw with this setup had some computer bits from the 997 as well.

More pics of the car in general would be well recieved - she looks like an excellent example!

Josh B

Possibly a #10 as you are a lot slower to build a bar of boost than most k26s. (your dyno shows a bar at about 3500 rpm - most stock k26/6 hit it around 3k if I am not mistaken) Stock would be a #6. Could be an eight too.

Sure do appreciate all the great info. Just for reference I've got light headwork, aftermarket turbo with #8 hotside, 3" exhaust, Vitesse MAF and chips, tial 38mm and 55lb injectors and can't break 300 rwhp at 17lbs of boost - hence the curiosity about your setup.

blown 944

edit:

f'.... it .....no sense in arguing

JC951

i was told it had a custom DME/KLR tune. 38mm Tial WG, the hard pipes and MAF upgrade, turboXS RFL bov, when I have time i'm gonna have to take a look at the injectors...i'm used to the power now, i want more...oh and the guy i bought it from said i could turn the boost up 5 more pounds to 21, yet that would be pushing it and it seems bulletproof at 16 even though i normally run it at 10 but havent put it past 16...

Josh B

Lots of different opinions on here as I am sure you will find out but before turning up the boost that far i would get a knock sensor on the car. There is a thread here on the board about how to do that for only about $20 in parts.

Josh B

Sid man - watcha thinkin? You are way more qualified than I for first hand experience on what these cars a capable of...

blown 944

people would not like my response.

Like my mamma always said..........

JC951

i'm open to any response...i dont care...i'm still learning about all this mechanic stuff...i dont want to just get in my car and drive and not know whats going on like most people. and now, from what i hear or see for that matter...is a k26 cant support over 300whp which means that i need to keep debunking my motor to figure out what i have...some super gerbal running inside that turbo for all i know...so all comments are welcome

V2Rocket

sid, please chime in if youre thinking something is up. there is a possibility that the turbo could have been swapped and the K26 badge retained.

JC951

the receipts say turbo was swapped from the other motor...and if i'm correct the inlet diamter is around 1.75" for a k26

PorscheDoc

That definitely is not a 997 MAF, looks more like a 993 MAF with the quick screw lock connector. 997's use a snap on connector with a removable MAF sensor.

alxdgr8

Dyno could be showing corrected or flywheel numbers. Easiest way to know for sure is to take it to a dyno shop and redyno it yourself.

JC951

those dyno graphs are the numbers i got when i took it to get dyno'd

blown 944

that would be my guess, as I have seen it multiple times with those using dyno dynamics software.

My .02 is that a k26 cannot... and will not... put down over 300 rwhp even maxxed out (WG clamped off). It simply can't flow enough air... (300 is seriously pushing the claims IMO).

The only way this can happen IMO is to add another power adder.. ie: nitrous, nitromethane,..etc...

Looking at the charts I will say it is a nice tune and the charts look like a k26 with boost falling off in the upper rpms. Except that they typically fall off more than that though. It doesn't look like the typical "maxxing out" since the boost is stable and not peaky.

If you are planning on running more boost you ought to think about fuel (qty and quality) also add a wideband and a knock counter. If you can, an EGT gauge.

The boost onset is late. That could be the controller or hotside though. Truthfully, it is not getting the most out of a k26 IMO. To me a k26 is for quick spool whereas this setup is as laggy as one of my 500hp turbos.

regardless it is a nice setup just needs tweaked. Which way to tweak it is a matter of preference.