Turbo question

[CMF_Crazydamn]

Just a quick question about turbos
What turbo is everyone using ??
So I can get and idea of what turbo to use

 

[CMF_frank2]

TD04 9b

 

[CMF_Crazydamn]

Coz I'm thinking about using a tf035 turbo anyone used one ??

 

[CMF_frank2]

sounds perfect for a daily d, same compressor as mine but smaller turbine, twill boost from 2k

 

[CMF_Crazydamn]

Yeah thought It would be good for a daily nothing too big but still has some power to it
And the turbo is gonna be free from a mate who is upgrading

 

[CMF_frank2]

mine was from a twin turbo gto, so designed for a 1500cc petrol basically, so plenty big enough on the coldside.
yours will just have a bit more pumping losses off boost, ie 5 or 6 psi in the chargepipe and -5 psi in the manifold while cruising

 

[CMF_Crazydamn]

Pumping loss ?? What do you mean by that ?

 

[CMF_frank2]

just backpressure in the exh mani and chargepipe, a typical 4-2-1 extractor on a k11 will give a 5 or 10 hp gain over a stock mani, and a turbo setup will give a similar LOSS of hp (off boost) due to the restriction in the exh system of the turbine and its volute.
its gonna be worse on a small turbo and not as bad on a bigger one, but a bigger one is less responsive eh

 

[CMF_Crazydamn]

Ahk I see what you mean there
So off boost I'll loss a little hp ? Yeah but not a lot to notice
So it shouldn't matter to much then yeah ? Will still have more power then stock and should be responsive to

 

[CMF_Crazydamn]

I.e lag yeah

 

[CMF_frank2]

yeh, small price to pay for 2 x stock hp innit
you lose some miles/gallon @ cruise basically on a turbo petrol engine, hence my current electric s/c tinkering

 

[CMF_Crazydamn]

Ahk yeah that's alright and lossing miles dosent really bother me as long as I still get like 400ks I'll be happy

 

[CMF_Crazydamn]

And with the intercooler has anyone used a top mount setup