This afternoon was my first dyno session. I need your thoughts. My setup is:
Drag mani
Turbo (GT3255E)
tial 38mm wastegate(8psi spring)
rc550's
Custom fmic
greddy type s bov
Hondata S200
drag ic piping
walbro 255 fuel pump
drag 2.5" dp
for now a stock itr exhaust

I made 242.0whp with 169.2ft/lbs @ 8psi
Tell me what you think.

 

Sounds good At what RPM did you see 8lbs?

 

Full boost at around 3000rpm. This turbo spools like a bitch. And keeps going. I want to up the boost though

 

you might free up some more hp if you get a better exhaust. Was that dyno with a stock catylac convertor?

 

no cat at all. I know my exhaust is killing me

 

Torque seems low, why do you suppose that?

 

I have no idea why my torque is so low

 

Yes. It's a great all around turbocharger that's not going to break the bank You can turn up the boost some more but I am sure you are happy with it as is. The exhaust, along with a couple other things, is hurting your torque and horsepower but as I said above you should be happy for now.

 

I want to turn up the boost a bit I am looking for a 10psi spring right now. This dyno is a mustang dyno, and I heard that you have to add a bit more power to get the equivelancy of a dynojet. Is this true?

 

umm...what motor is it?

 

from his username, its a b18c1

 

torque is low because you have no cat, more flow means less backpressure

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tapen00n &raquo;</TD></TR><TR><TD CLASS="quote">torque is low because you have no cat, more flow means less backpressure</TD></TR></TABLE>

lol, no. Backpressure has nothing to do with it, backpressure has nothing to do with it in an N/A car. If anything having no cat would make more torque, because the turbo would spool quicker.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95GSRT &raquo;</TD></TR><TR><TD CLASS="quote">This afternoon was my first dyno session. I need your thoughts. My setup is:
Drag mani
Turbo (GT3255E)
tial 38mm wastegate(8psi spring)
rc550's
Custom fmic
greddy type s bov
Hondata S200
drag ic piping
walbro 255 fuel pump
drag 2.5" dp
for now a stock itr exhaust

I made 242.0whp with 169.2ft/lbs @ 8psi
Tell me what you think. </TD></TR></TABLE>

242hp at 8psi on a GSR motor is really low? If it's on a LS then that's about right

 

My tuner said that if I ditch my piece of **** exhaust and put 3" piping it will be a dramatical increase in hp. he said around 10hp. as well it's on a conservative tune so the timing is not too advanced. He put it for a very streetable tune, not too aggressive. I'll go back with my new setup and then we will see.

 

if you only had a stronger block......

sorry, I am itching for an STI

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Benjithx &raquo;</TD></TR><TR><TD CLASS="quote">if you only had a stronger block......

sorry, I am itching for an STI</TD></TR></TABLE>

Funny. I'll just mess around with this one till she blows and then buy a built block. Dont worry Benjithx you'll sell it, There are plenty of people who need a sleeved block.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr.DC2TurBo &raquo;</TD></TR><TR><TD CLASS="quote">

242hp at 8psi on a GSR motor is really low? If it's on a LS then that's about right </TD></TR></TABLE>

242hp @ 8psi on a GSR is not low on a Mustang Dyno.

 

what is the usual hp difference on the 2 dynos?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by oxSLEEPERxo &raquo;</TD></TR><TR><TD CLASS="quote">you might free up some more hp if you get a better exhaust. Was that dyno with a stock catylac convertor?</TD></TR></TABLE>

might? WTF....that right there would be like a 20whp gain.....

Awsome man...

But I'm also betting money that you don't see 8si by 3000rpm's with that exhaust and 2.5" Downpipe......

 

be carefu wid ur a/f ratio if u change the exh, if it makes a big difference flow wise and if it hurting u so much now, u can bet it will effect the a/f ratio dramatically.
-Toby

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 0x64 &raquo;</TD></TR><TR><TD CLASS="quote">Yes. It's a great all around turbocharger that's not going to break the bank You can turn up the boost some more but I am sure you are happy with it as is. The exhaust, along with a couple other things, is hurting your torque and horsepower but as I said above you should be happy for now.</TD></TR></TABLE>

Arent these turbos around 750.00 new?

 

mustang dyno = 3-4 % less then dynojet

my dyno (b18c, eagle rods, stock comp je pistons, drag kit @ 10psi)

279 whp @ 7200 rpm
218 ft lbs @ 6800 rpm

best time so far is 11.7 @ 116 mph w/ my girlfriend in the car video tapping

the track is open tonight, hopfully better times today....
this is in a 89 crx si
(15 x 24.5 welds)

the car went 11.9 @ 113 w/ 8psi with the stock motor last year, finally blew after 2 years.... was only making 235 whp and 181 ft lbs on a dynojet ( rings were going)

 

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


But I'm also betting money that you don't see 8si by 3000rpm's with that exhaust and 2.5" Downpipe......</TD></TR></TABLE>

I will double check, but I'm pretty sure it's not many more rpm if any.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TuRbO_CrX_7o2 &raquo;</TD></TR><TR><TD CLASS="quote">mustang dyno = 3-4 % less then dynojet</TD></TR></TABLE>

Mustang Dyno can do unloaded (Dyno Jet) numbers. I have found a 5% - 7% difference in power between loaded and unloaded pulls on a Mustang Dyno. It seems like people on here think Dyno Jet's are superior to Mustang Dyno's