what is the maximum power that can be achieved from one of these as im looking to get the most out of my engine and i love my t4 but i am hoping to start racing next year and i want it to be at its best ? any advice greatly appreciated

 

a proper t4 and theright ex housing will go to about 550 bhp.

 

is that on pump fuel or race fuel mate as i intend on using shell v power to keep costs down Ł3.33 a litre for race fuel is a little outta my budget !!!

 

yes thats with normal ish fuel.

is your engine a good enough spec to get 550 bhp from it.

 

the engine is a turbosystems spec jobbie he suggested what parts to use and what compression ratio ect, i got all the machine work and head porting done by/through him he also supplied my tubo wich is a touring car spec t4 the only doubtful part is the inlet plenum wich is a eeciv item and im not sure if that is up to the job when he live mapped it for me he advised to maybe use a heart power plenum cover or better still a propper 500 one and im unsure if my cams will be good enough bd 14,s ?

 

as dave said depending on spec anywhere from 520-550 hp flat out. There are stories of the old touring cars doing 600+ but I don't think that even if all else was perfect the t4 could physically flow enough air.

 

I think it's around 560 bhp, but I was told the turbo won't last as long, bit like a T34 running loads of boost.

 

just give tony a ring. he don't bite

 

in youre sig you have a different phone no for him mate has he changed it ?

 

ring it and find out

 

The inlet you are using is perfect , nice and reponsive which will help the "laggy" T4 . bBut as said in earlier posts , its all about the fuel delivery and mapping.

 

The Hart inlet is better than the 500 one from test results i have seen

Steve

 

It.s is new mobile no in my siggy.

 

cheers mate i called him today and had a chat he has now convinced me that i should get a sequential box heart plenum and one of his funky inlet cams lol bye bye tremec hello elite

 

Oh. Your the guy tony nearly sold my gear box to

 

Hee hee hee yeah and there is still time yet mate

 

Sorry. It,s bolted in now.

 

Are you even allowed to run a sequential box in the series you plan to enter ?

I've got a modified version of the EEC 4 inlet using a extra 4 injectors mounted the same as the rs500 ones and according to the guy that had the engine done by HT there is nothing between mine and the 500 inlet on a engine specced like yours, well apart from the cost ofcourse lol

The original owner of mine who raced it back in 1993 said you would get 2 qualifying laps to a turbo on full power ( a claimed 565hp) just shows how things have moved on !

 

Yeah sequential will be fine it will just put me in class a against the guy I bought my shell off and rod birley to run in class b i would have to use a std t5 casing and there is not a decent gearkit avalable for those imo my tko puts me in class a anyway but weighs a ton and shifting is slow , I am defianatly going to get a hart plenum I have heard nothing but good about them and it can only help