B20luda

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...

B20luda

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

done

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

B20luda

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

BoostR41

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

b16sedan

<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.

B20luda

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

alpha

<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.

SiRkid

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.

Boltz

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

done

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

alpha

<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?

FOrSfEd

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.

done

<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

JDMs1eeper

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?

B20luda

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...

Sonny

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

Sonny

Chip

<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.

FOrSfEd

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

M.A.R.C.

<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

alpha

<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.

PM-Performance

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

BoostR41

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

Sonny

<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

M.A.R.C.

<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