R5FORD

iTrader: (1)

whats the equivilant mate?? gt35?

rapidcossie

The smallest GT35 is still rated at a higher airflow than a T4 so the closet GT turbo is still a GT30.

R5FORD

iTrader: (1)

ahh ok..

Red16

rapidcossie - any chance of posting up a graph of your cars power and boost please?

NEIL A

iTrader: (6)

Euan it does sound like its doing the buisness power wise 350atw at 5000rpm with just 1.5 bar, but i was meaning more how early its on boost and the spread of the powerband. Wont find that out untill final cam timing has been done and the rest of the map finnished.


Euans power run graph for 502 that i found on another thread.

Jay,

iTrader: (4)

in what relation does ur turbo share with a t4 as a t4 dosent have a roller core the trims are all different aswell as the housings is it the bolts that hold it on to the manifold surely ur turbo is more related to a gt series 30 more than a t series

NEIL A

iTrader: (6)

Jay as far as im led to beleive the trim, exhaust housing , and shaft are all T4 spec . The front housing on mine and Euans is GT style for 100mm inlet but you can also get it with the standard size T4 housing.

Jay,

iTrader: (4)

ah i see

rapidcossie

Neil is 100% spot on as always

Red16

nice graph that mind

rapidcossie

I like the 4k figure...308 at the wheels with another 4 thousand revs to go

In all honesty you very rarely have to rev it over 5k on the road.

RWD Pete

Getting giddy about big turbo's steve

RWD Pete

Spoke to CR turbo's today he gave me a price on a roller t4 and it seems reasonable altho i could save a couple of hundred quid getting an internally gated gt30. So i dont know which way to go, accordinfg to TT they say a Medium gt30 is maxed out at 475 BHP?

NEIL A

iTrader: (6)

Pete did you get a price for the full spec T4 with the extra housing mods, sure mine worked out around Ł1700 inc vat.

jaimesdna

iTrader: (3)

what price did they give you for what spec t4 if you dont mind me asking, as im kinda thinking about a t4

RWD Pete

Yeah it was all in inc vat plus he did mentiom housing mod. Obviously i mentioned euan and his turbo. He went on about mike rainbird too. Think i got a good price as i am self employed in the motortrade.

rapidcossie

They are great turbo's Pete

Mike has a slighty larger comp housing due to his capacity of engine.

sygjim

iTrader: (1)

where can i find CR turbo ?

RWD Pete

What comp and cams you running euan?

rapidcossie

Ooooooooooh that would be telling

RWD Pete

Oh its a secret spec i see

pm it to me then, im not changing my spec now just curious

NEIL A

iTrader: (6)

Pete very much dout he will tell you but as your low comp with bigish cams it should work well

rapidcossie

Pete, if I told you the spec of my engine you would say It wouldnt work and I must have made a mistake.

My engine is an all round packge that has involved alot of testing to get wehere it is now.

Needless to say I think its an awesome package with a fantastic comprimise between power and driveabilty

RWD Pete

Right i have decided to go for a aet gt30 hybrid internal wastegate setup, same units supplied to mad giving around 540 bhp on some of there engines......hopefully it will work for me

Lo@der

iTrader: (8)

Keep us updated

Billabong

http://www.crturbos.co.uk/

grcossie

Gt3076 whit 63exhaust going on my new engine, this whit 2wd manifold and extern wastegate

sygjim

iTrader: (1)

thanks

RWD Pete

Sounds like theres a lot of time and sffort gone in and thats what its all about, trying different approches and seeing what works for you.


With a bit of luck i'll be chasing you

Mark Shead

No they dont, The best I have seen is 520hp on a trick long rod engine,
And 500hp and 500ftlbon my normal spec engine.

Mark

glancy2081

how does the graph compare for a 500/500 engine to euans one mark

Ryan

ooppps

Mark Shead

I havent looked at his and you cant compare a engine dyno/Superflow to AVA RR unless you have run on both,
From what I have seen AVA do the same type static load hold revs and biuld boost,
If you search you will find one of my older spec engines showing 500hp and over 485ftlb on a Dyno dymanics RR which is done on a 3rd gear accelerated power run so you dont biuld the same low rpm boost as the others above.

Mark

RWD Pete

Thanks for clearing that up, andy did say mark has seen 540 bhp on a well specced engine.

As long as it gives me what i want i'll be happy. And lets face it there not gonna be shit if you fit them.

mechanic28

iTrader: (5)

will a TT38 work on a standard engine?205 block standard c/r,mild porting!or is it better to staick with the T34

RWD Pete

If you want more power then yes. Altho it will be laggier

mechanic28

iTrader: (5)

will it be alot more laggy on a standard c/r engine?mines on a .55 and dont really start boosting until 3-3.5 k

RWD Pete

its a 0.63 housing and compared to my mates 34 engine with same comp as me theres a fair bit of difference in spool up time. Wont be too bad on std comp with mild cams as my last engine were 8.5:1 on a tt t38 and that was full boosting by 4100

rapidcossie

I would imagine the GT30 would be similar in terms of spool but would lose power against the T4 higher in the revs range.

I see full boost around 3.5k onthe road.