2003 sti uk, simtek ecu,md321h s/s headers and up pipe, 3"buddy club exhaust from turbo back full decat, injectors adjustable 1000cc, fpr,walbro fuel pump holding boost at 1.5 went to powerstation today for a power run and only managed wait for it
.................................................. .................................................. .................................................. .................................................. ................................ 370bhp thought these turbo's were good for 400bhp any ideas or is that about right
cheers
marc

 

What did they say ?

DunxC

P.S. A good set of rollers may give a realistic reading, some don't and are way over !

 

maybe was a true reading didn't say alot just that the work in the engine bay was well done. gutted after i did loads of reading up on the best turbo for 2.0lsti to get you to 400 maybe made the wrong choice.

 

Turbo will put out 400 bhp (I've done 3 now and all put out 396-402 bhp) on road fuel but that's been @ 1.65 bar and with the Scottish magician (AndyF) Mapping them..

It is easily possible but you need to remember that not all dyno's put out the same figure for the same car. go to a Dastek one and you'll get one figure, Dyno Dynamics will give another, and so on.................

Don't get to het up about the power figure, if it runs well and feels fast......ENJOY IT!

also ask if you get the AFR readings and egt reading that some can supply for you. This can tell you if the fuelling is rightfor your setup!

 

Fingers crossed you get to the bottom of this matey

Maybe the reading was a bit low??

 

cheers for that, might be a fueling issue but as you said have to get checked out though at the end of the day she is quick i think the real test will be on the track

 

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#5 (permalink)
Fingers crossed you get to the bottom of this matey

Maybe the reading was a bit low??


boost was holding at 1.5 all the way.

 

At least she should last at that level, mine was making 1.6 bar on it's VF35 !

Are you still using a std IC ? Or a BIG fmic ?

DunxC

P.S. Enjoy, "pub" figures aren't everything, or go for methanol at 10% plus a map tweak....

 

front mount mate.

 

DunxC

P.S. Enjoy, "pub" figures aren't everything, or go for methanol at 10% plus a map tweak....

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Last edited by dunx : Today at 22:59.

meth now that sounds like a plan

 

what induction are you running?

 

Mate, I feel for you. I am having the same drama. spent money on mods and not coming up with the goods. I got 375bhp 335 torque. And it is spooling really late and not very responsive. It goes well above 4700rpm but before it is not very good.

Thinking of going the twinscroll route now for 380/380. Wish i didnt get into this tuning malarkey. cant let it go now until the car goes how I envisaged.

 

same hear mate but i will do another r/r somewhere else then look at other routes cheers

 

My car made 369bhp on the rollers recently......and was hoping for nearer 400hp.......but the car runs a treat and manages 11 sec quarters so i am more than happy....

A friend of mine who works for a Jaguar race team and specializes in engine builds has advised me that the only way to measure the power accurately is with an engine dyno.......and all RR will give different outputs.

 

yes as you say the proof is in the 1/4 mile run cheers guys

 

I was going to try an MD321H to sort it but i think I will go twin scroll. Happy with the top end power or should I say the way it goes at top end. but it is just the low down responsiveness, could be something to do with the FMIC ? What FMIC are you running mate

 

The md does pull extremly well all the way up to top end.The front mount is the hybrid(HDI)