+40bhp from an intercooler!!!

[Sponge Bob]

Wahay had my first dyno experience - was awesome... gah - so easily pleased, but what the hell- i'm only used to playing with my 1988 Orion - not *really* the same buzz factor!! (although soon to be Mk1 MR2 if I can find a nice one...)

Anyway, my TT Supra wielding chum re-dyno'd his car at Mid Kent College since replacing the minute stock intercooler to one about 3 times the size... stats reveal a hike of just under 40bhp - putting it now at 338bhp...

Is this right or did the dyno staff mess something up... 40bhp for just an uprated intercooler just doesn't sound feasible!!

Or am I being a bit cynical...

[cptsideways]

Sounds quite reasonable,

Rower charge temps = bigger slower bang hence more torque & hence hp

Reduced engine temps = ecu sees less knock so advances the ignition & bigger bang.

You usually find a bigger intercooler gives less drag so the turbo needs less effort to produce the same quantity of air, a difference in boost pressure at the inlet is often the case.

Our old 1.6 323 Turbo gained about 20hp via intercooling alone.

[Sponge Bob]

Groovy!!

ooo - this is my 100th post btw - and where else could it have possibly been other than in japchat... think i'm going to cry...


took long enough...

[shadowninja]

Was the original dyno done on that same RR? Did they change the ambient temp setting?

[Sponge Bob]

It was done at the same place mate, the settings were identical bcos we still had the old dyno slip - well, I presume the settings would be the same due to this... not too sure how the computer side of things work on ze dyno...

[vixpy1]

What was the before reading, is it UK or jap spec.. man or Auto?

[Sponge Bob]

Not sure if it's UK or JAP... but it's got an auto box and the old dyno measured at 297ish. I do know it was bought off a guy called Matt - think he's known as one of the best as far as Supra knowledge goes.
Maybe one of you PH'ers knows him?

[vixpy1]

If its an Auto I really need to wheel figs to be able to tell

[shadowninja]

Uh oh. The old guestimate-the-flywheel-HP monster rears its ugly head.

[Sponge Bob]

I think I recall the dyno computer saying the flywheel/engine bhp was 475 odd... not sure if I was looking at the right thing though!!

[shadowninja]

What was the at-the-wheel (or hubs) figure?

Without taking the engine out and sticking it on a bench you cannot accurately measure flywheel figures. It upsets a lot of car modifying enthusiasts.

[Sponge Bob]

The best wheel figure came in at 338.7... prior to the new intercooler it was 298 brake.

[vixpy1]

take it its not running stock boost then?

[Sponge Bob]

Nope - been tinkered with quite heavily I think. But not too sure about the boost settings...

What should a stock TT Soup kick out then?