fallenprnce

Does anyone know if 48/52 turbines from PE are going to give me massive lag... or just a bit... anyone have ideas on what the powerband will be with those turbines?

__________________
Smart kid- "Holy S%it is that a skyline GTR?"
Me- "No its a 240 SX with a body kit and a right hand drive conversion"
Smart kid- "Oh... Do you have neons?"
Me-

YEAH! It is a GTR, Yeah it Lives with me in Arizona... Yeah, It is sexy... I love those who rev at me on the Highway... Little do they know the Power of GODZILLA!
425.6 AWHP its a start.... now all i need is the fuel system and i go from 18.5 PSI to 23.5 PSI

ZedEx

I just had an idea... Maybe this could go in the 'Performance Section' ?

Not to be a smartass... Just saying.

-Wes

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fallenprnce

sorry, when i posted i thought it was in the performance, my bust

__________________
Smart kid- "Holy S%it is that a skyline GTR?"
Me- "No its a 240 SX with a body kit and a right hand drive conversion"
Smart kid- "Oh... Do you have neons?"
Me-

YEAH! It is a GTR, Yeah it Lives with me in Arizona... Yeah, It is sexy... I love those who rev at me on the Highway... Little do they know the Power of GODZILLA!
425.6 AWHP its a start.... now all i need is the fuel system and i go from 18.5 PSI to 23.5 PSI

RazorGTR

lol. I presume you are talking about the compressor trim?

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You don't own a Skyline, then don't cry to me about it!
1992 Silver R32 GTR tickled to 450hp. - Sold when I left NZ in 2004
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fallenprnce

yes

__________________
Smart kid- "Holy S%it is that a skyline GTR?"
Me- "No its a 240 SX with a body kit and a right hand drive conversion"
Smart kid- "Oh... Do you have neons?"
Me-

YEAH! It is a GTR, Yeah it Lives with me in Arizona... Yeah, It is sexy... I love those who rev at me on the Highway... Little do they know the Power of GODZILLA!
425.6 AWHP its a start.... now all i need is the fuel system and i go from 18.5 PSI to 23.5 PSI

RazorGTR

The majority of lag will be determined by the A/R rating of the exhaust housing, not so much the trim of the compressor side. It gets quite technical but the short and skinny of it or good rule of thumb is the bigger the A/R rating of the exhaust housing (turbine) the greater the lag.

Standard GTR turbos are T25's with a turbine A/R of .46, and you should see full boost around 3,200 rpm all day long. Bump the same turbos up to .64 with slighly larger wheels on both the turbine and compressor side and the boost threshold increase. So if we look at some basic Garrett turbos this can give you a good example.

For single turbo conversions a Garrett GT30 turbo with an turbine rating of A/R .64 on an RB26 that is factory standard should see peak boost of 1 bar (14.7 psi) at 3,000 rpm and can make up to about 450hp. If we change the exhaust housing to one of an A/R of .86 peak boost climbs to around 4,100 but we now can make 500-525hp with the same compressor side.

Good replacement turbos for a GTR are HKS or Garrett GT 25-30's. They have smaller wheels on the exhaust side but yet have an exhaust A/R of .64. Full boost should be around the 3,800 rpm mark yet getting 600-625hp isn't a problem. They are the most effeicent (streetable) turbos on the market.

Again to try and answer you question you would need to post the full specs of the turbos, and odds are unless I'm very familar with them it will be guess work. All depends on what sort of power you intend on making and how drivable do you want it.

__________________
You don't own a Skyline, then don't cry to me about it!
1992 Silver R32 GTR tickled to 450hp. - Sold when I left NZ in 2004
Arguing on the Internet is like competing in the special olympics. Even if you win, you're still retarded.
Never confuse kindess with weakness.
AF user guidelines, Please remember to abide by them