on a b18a with stock compression, with a t3/to4e .50 trim .63 a/r when should i expect to start seeing boost and full boost? Tia

 

how much boost do you want to run ?

 

Bump for you.

I plan on going with this turbo on my ls motor. Planning on boosting 11-12 psi.

 

soon enough i'll be boostin too

 

the amount of boost determines when u hit full boost. on my b18c1 its around 4k at 9 psi

 

about 11 - 12 psi

 

Should be 4k area. Not too much higher.
Pretty good spool time IMO.

 

4k for full boost or starting to spool? ---thanks for the info guys

 

well, I have a GT32E
with 3" open dp, I see 7.5psi by 4k-4200k with a b16.

 

Full 10-12psi boost by 4000 - 4500 rpm

 

also makes a difference when you talk about what stage exhaust wheel

 

In 2nd gear I see full 9 psi by 4500 in 4th or 5th gear I see full boost by 3200. It also depends on the gear. I have the same turbo only it's a 57 trim and same engine only its a b18b (no diffrence really). Also I use a ramhorn style manifold so that slows the spool time a little but runs hard all the way to 7000!

 

kinda off-topic but, are there any spool time differences between the sc61 and sc44? or is it negligible? im looking for a good turbo to get me more or less 400hp on a b18b with minimal lag

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Metaphysical &raquo;</TD></TR><TR><TD CLASS="quote">kinda off-topic but, are there any spool time differences between the sc61 and sc44? or is it negligible? im looking for a good turbo to get me more or less 400hp on a b18b with minimal lag</TD></TR></TABLE>

The smaller turbo spools faster. The SC44 will be a better choice for your goals.

 

thanks man. for some reason i could've sworn that i've heard that their lag was about the same several times. i think im going delirious

p.s. - one last question. is the sc44 as efficient as the sc61?


Modified by Metaphysical at 4:30 PM 11/16/2004

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Metaphysical &raquo;</TD></TR><TR><TD CLASS="quote">

p.s. - one last question. is the sc44 as efficient as the sc61?
</TD></TR></TABLE>

That question is too generic. Different turbos have different efficiency ranges. It all comes down to picking the right turbo for YOUR setup and goals.

 

sorry that was a bad question. i've heard of people making in the 250-300 whp range on their b18b with the sc61 at around 9psi, i was just wondering how the sc44 compared at the same psi range.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Metaphysical &raquo;</TD></TR><TR><TD CLASS="quote">sorry that was a bad question. i've heard of people making in the 250-300 whp range on their b18b with the sc61 at around 9psi, i was just wondering how the sc44 compared at the same psi range.</TD></TR></TABLE>

It doesn't matter what psi you make the power at. Who cares whether you make 250-300whp at 9 psi or at 15 psi? What really matters is how fast you can spool the turbo to that psi level.