slow

iTrader: (7)

yes, more load will make almost any turbo spool faster.

Ryan

qqwqeqwrqwqtq

How long are you running the car on the dyno before making the pull? I find you need to cruise the car at 2500 for 2-3min before starting the pull (with an STS car) in order to get the entire exhaust system up to operating temp.

If you fire the car up and immediately make a pull after a decent cool-down all of your heat energy will be used to bring the exhaust up to temp rather than bringing the turbos online.

bboyferal

iTrader: (9)

lol @ "may be right"

Qwick98Z

Then show me a dyno sheet of a rear mount twin turbo 402 with LT's then with stock manifolds


Have you made over 800 hp? Have you tested exhaust gas temps and pressure on manifolds vs. LT's?

I’m new to the rear mount game, show me what your telling me is true, and show me some data.

Qwick98Z

LOL

Qwick98Z

We did not run the car long, A few fast pull's the we let it sit

70Stang

iTrader: (2)

Dave, just trying to give some advice. We were full boost by 4-4500rpm, altho on a Dyno Dynamics dyno... You car will be sick when you get it sorted out. Good luck!

50_Dave

Thanks for the tips Justin. I appreciate it. It was something we considered.

After further playing around on the street, and hooking the eboost2 up, we were able to obtain 7 psi at 3k rpm, and 18 psi at 3800 rpm!!!!

By the time i let out at 4k rpm, it had hit 20 psi. I think we have the ability to make the car spool, now its just a matter of getting it to maintain at the desired boost level.

70Stang

iTrader: (2)

Damn, thats killer!

Have you even started messing with the GP in the EBoost?

Qwick98Z

Just started to play with it late today, man the boost comes on hard before 4k. I think we have it now, its time for the dyno.


Thanks for all guys

99 vette

Had the same problem 7psi on dyno 14psi on street...ebrake dyno loaded the car hard problem fixed....on my car anyway.

50_Dave

I dont understand what you meant by the ebrake thing?

bboyferal

iTrader: (9)

You pull the e-brake (not all the way) to simulate just the right amount of load on the engine while on the dyno... Not the best method, but people do it...

On the Mustang dyno I was tuned on, you can select the load by inputting the "weight" of the car you'd like (in my case, ~3,800 lbs.), and the estimated resistance is created on the roller on the dyno to simulate load...