A/R 0,84 vs 0,96 vs 1,15

How would they spool up with HKS cast and street ported engine? When Would I see full boost and how much hp could I get? What A/R should I go. My goal is ~375-400rwhp@14-15psi. Full boost @~3500-4500rpm.

What other choice do I have to achieve my goal? How about the "BLOWZILLA"? at what psi is its sweet spot?

 

You won't hit 400whp@1bar with a T04B turbo.

I have an HKS T04R with an .84 A/R and I hit just over 400whp at 15lbs, and thats with a loooot of mods. (HKS T04R is a T66 sized wheel)

We had a t04B on the car before that and made a fair bit less power.

 

to4 is big...not that big

 

@ what rpm do you see full boost? To4R IS an option for me. What kind of porting you have?

 

he said he had street porting

 

A/R 0,84 vs 0,96 vs 1,15

How would they spool up with HKS cast and street ported engine?
street ported engine?

 

WTF?????????!!!?!?!???????????!!!!!!!!!!?????????? Am I missing something?? Or are you?

 

I saw the blowzilla and it looks ok. I am going with the ballbearing version of the GT35/40
I don't see that having a problem hitting 375-400 on 15lbs. I already bought a BW S200 that I was going to run on advise from BDC. He ran the same turbo and hit 400 at 15lbs. so it depends on if I have the funds at the moment to get the new turbo setup.

 

A few select people have hit 400whp @ 15 psi on a T04B (60-1). 1FastT2 comes to mind. I think JScott's AE did as well. Must have great tuning, though.

I would say go with the .96 or 1.15 for more top end. I would expect full boost 3500-4000rpm.

 

If I remember right a few guys with 1,15 A/R had allmost no boost at all until 5000rpm?!?

 

Really?? That seems quite odd.

BTW what is the max boost and power from the T04B?

 

A 60-1 can hit 400rwhp; I think your afm is starting to become a huge restriction at the power you are putting down rob.

- Matt

 

Too many variables...
Even if you say "streetport", I've seen bazillions of different street ports out there.
We can't predict exactly at what RPM the boost will hit.



-Ted

 

I have a racing beat streetport. I think someone would use word "mild" with it?
I don´t have to know the exact rpm but in what rpm area would get close. So if I go for example 1,15 A/R SHOULD I see full boost around 3500-4000 or 4500-5000 and how about 0,96 A/R? That I´d like to know how much they differ from each other.
Thanks

 

1.15 should see around 4,000RPM.


-Ted