i have a b20a old prelude motor simular to the b20b ...9:1 ported head 2.5in DP 3in ex. no cat...i will be runnin around 10-12psi ...just wonder what RPM this baby will spool....63AR turbine ...67trim compressor...before i had a 59trim compressor and it spooled around 3600-3700rpm...what do u guys think...thanks...

 

now one has any experience with this...come on...

 

my 67 would come on around 3500rpms..
5psi by 3500rpms

 

sweet what was your setup...how long until full boost...

 

I have been hearing sc61's don't spool till 5k how does a t3/t67 spool at 3500

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostR41 &raquo;</TD></TR><TR><TD CLASS="quote">I have been hearing sc61's don't spool till 5k how does a t3/t67 spool at 3500</TD></TR></TABLE>

That's what we like to call a typo. Figure 4500-5000, not 3500.

If you have a 67 trim wheel that does not make it a T67. The T67/TO4R compressor wheel is 63 trim, not 67 trim. Clarify what turbo you have a little better.

 

well the wheel is 67mm in diameter not sure what trim it is?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostR41 &raquo;</TD></TR><TR><TD CLASS="quote">I have been hearing sc61's don't spool till 5k how does a t3/t67 spool at 3500</TD></TR></TABLE>

Till? Are you saying you have been hearing SC61's dont make ANY boost until 5,000RPM? If so you have been hearing wrong.

 

i think jordo means its making some boost by 3500 rpm...5psi is bullshit though imo.
maybe a couple of psi ..then building to full boost by 5500-6k ish.

 

if jordo got on it at about 2500 in fifth gear I wouldnt be that suprised it if spooled a few pounds by 3500, it will never hit that in first or second gear

 

dude i **** you not, i would get about 5psi in like 3rd gear around 3500rpms, then full boost by 4k..

i only had the car running like that for 2 days though

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jordo &raquo;</TD></TR><TR><TD CLASS="quote">dude i **** you not, i would get about 5psi in like 3rd gear around 3500rpms, then full boost by 4k..

i only had the car running like that for 2 days though </TD></TR></TABLE>

8.7lbs around 4,000RPM with your B18c5 correct?

 

I get 5 psi by around 4200, though my car is untuned and I have yet to really get on it so it should be a lil faster.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 0x64 &raquo;</TD></TR><TR><TD CLASS="quote">

8.7lbs around 4,000RPM with your B18c5 correct?</TD></TR></TABLE>

i only was boosting 7psi

 

I have a compressor 70 a/r and 84a/r hot side with a 64.5 trim ballbearing turbo and was at 10psi at 4k. gotta love BB turbos This was on my b20b4.
when getting on it at a roll it would boost pretty much instantly to full boost.

What kinda turbo is this?

 

its kinda a mix of things...it has a chrysler center section (T3) and i have a Volvo turbine housing..&gt;63Ar and i just got parts from turbonetics...67mm compressor wheel and i think 63 trim .70ar...

 

Jordo and ForSfed: What a/r turbine housing are you using? Are you guys running T3 turbine housings and wheels or T4 stuff?

Sonny

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sonny &raquo;</TD></TR><TR><TD CLASS="quote">Jordo and ForSfed: What a/r turbine housing are you using? Are you guys running T3 turbine housings and wheels or T4 stuff?

Sonny</TD></TR></TABLE>

T3/T67, to me, usually means they're running a T3 exhaust housing Having driven a straight PT67 P-trim setup, I can say that there is no chance of a PT67 making 7 pounds of boost at 3500, or 4000.

 

I'm running a t3, .63 a/r

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 0x64 &raquo;</TD></TR><TR><TD CLASS="quote">

Till? Are you saying you have been hearing SC61's dont make ANY boost until 5,000RPM? If so you have been hearing wrong.</TD></TR></TABLE>

you haven't seen the one that was on my D16 then

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CivicRyda2k &raquo;</TD></TR><TR><TD CLASS="quote">

you haven't seen the one that was on my D16 then </TD></TR></TABLE>

To be honest I have yet to see one in person on a D16.

 

no way on the 3500 rpm thing. i had one and mine was 2.0, yes it spooled nicely, but not that nicely.

 

I would really like to see a map that shows how this turbo is effiecient. the T3 wheel speed would be insane with the compressor pushing anything higher than about 8psi or so

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FOrSfEd &raquo;</TD></TR><TR><TD CLASS="quote">I'm running a t3, .63 a/r</TD></TR></TABLE>

Thanks, man. I'm really wanting to run the T3/T67 on my RX-7. I think a .63 a/r turbine housing with a stage 3 wheel would spool up early enough to make it flexible enough for the street.

Sonny

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 0x64 &raquo;</TD></TR><TR><TD CLASS="quote">

To be honest I have yet to see one in person on a D16.</TD></TR></TABLE>

yah it's not a bad choice for a fully built d16... as long as u have a 3" downpipe... my 2.5" kiiiiilled me. i got full boost @ 5000-5500 rpm but i was spinning it to 8000-8500