hacker-pschorr

What are your intake air temps and what sender / logger are you using to collect the data?

So far so good.
I agree the best route to take is larger injectors and a custom chips via a Shark Tuner.
Ditch the FMU.

AO

I would say ditch the FMU for both the stage 1 & 2.


BTW, everyone thinks installing the SCer is the hard part, but it's not. Getting a reliable tune is probably 80% of the work.

victor25

FMU is already ditched!!! It will not be a part of any of the setups. Its just in the picture because that is how I started and it worked well for development purposes. But I learned fast it's not the way to go.

For sure AO... I am gaining some serious knowlage on fuel injections systems lately. Dialing everything in and doing it correctly takes a lot of time!!!!!!! The idea is to make the install easy, with the sytem being depenable and powerfull, for the end user Oh yeah ... and not cost 2 arms and 1 leg.

90 S-4

Which head unit is used, the
C-38-61 good for 300 to 550 hp
or the
C-38-71 good for 350 to 590 hp
or the
C-38-81 good for 400 to 630 hp

Thanks ..

victor25

nope, nope, and nope.... it's top secret!!!

Actually it is none of those models. There is a newer, more powerfull unit that is not advertised yet, and that is the one

hacker-pschorr

So it's the C38-91?

http://www.rotrex.com/Home/Technology/New_Releases.aspx

Tim Murphy

I believe they also make a C38-92, which is the same as the 91 but with a little larger inlet. Both units have a slightly longer outlet snout than the std C38 units, if I remember correctly.

I was messing around with a C38-91 last fall. Nice unit, I really like the compact diameter which is what initially caught my interest.

I had a pretty interesting inlet/air filter design for what I was contemplating; I'll see if I can find the templates and post a pic.

victor25

COME ON GUYS YOUR STEALING MY THUNDER HERE!!! LOL

It's all good , But maybe I should have waited a couple more weeks before saying anything on here. Then done a proper product launch and introduction.

dprantl

Even if the supercharger did not create any heat whatsoever (which is not possible), when you compress air you are automatically heating it up - PV=nRT, not exactly but close for air. I would not be so quick to dismiss an intercooler for such a reason.

Dan
'91 928GT S/C 475hp/460lb.ft

BC

If it creates low heat, you could use a fuel with very good cooling effect and run higher boost without an intercooler.

Imo000

Yes but water/alcohol injection requires constant filling.

hacker-pschorr

He's talking about running E85

90 S-4

victor25,
What is the max hp & boost this new one will
be capeable of on a 928 5-ltr mtr

BC

I will bang the drum all day long.

Yes - the GAS tank will need refilling, but not as often as a smaller tank that sprays alcohol.

Imo000

Ahhh ok, thanks........Fn' hippy gas. Doesn't E85 produce less energy? We don't have this crap up here yet......at least I haven't them anywhere.