twilson

Here is my basic setup:

LS-Vtec (b16a head)
ARP Head Studs
Eagle Rods
ARP Rod Bolts
CP Pistons 10:1
Turbonetics T3 Turbo - 15psi
Drag3 Manifold
Full Exhaust (No CAT)

I bought the car with this setup, so I don't know too much specifics about the turbo. I really wish I did.

I decided to buy and not build due to the fact that:

1. This was an awsome deal.
2. It has everything that I would have done (appearance and performance)
3. I don't have the time.

But anyway, here is the graph. The guy at the shop told me that their dyno has a heavy *** wheel and is a 1500hp dyno made for like muscle cars, so who knows. He told me it reads low like a mustang dyno.

Are these numbers any good for my setup? I wanted to turn the boost up to like 18-19psi, but didn't. I was running 93.5 octance pump gas.

bigbadboy

i don't know if its just me or your #'s are really low and it needs a little more tuning

b18sihatch

what were you hoping it would make?

miller

It seems as though you would benifit by more tuning and also it is hard to really tell without specifics on the turbo itself. The power does seem kind of low regrdless due to it is 15lbs, but it is also hard to say cause the dyno could also be low reading as was stated by the person at the shop you talked to. I would find out more info on the turbo itself and go from there.

JDogg

thats pretty normal if its a straight t3 turbo... and what kind of exhaust do you have?

ATYPR

t3 with full exhaust??

Get some specs off of the turbo or take a few pics of it and tell us what size exhaust you have.

nebulight

yea, if you want bigger numbers switch out the turbo to something bigger. Chances are it has a small turbine wheel and/or housing. Also, learn how to to display your dyno sheet; put the hp and torque on one graph and the AF on another.

twilson

I was hoping for 350's.

3" exhaust with apexi muffler.

I will try to find out more about the turbo. I know it's small as hell.

Also, he did tune it, but said something about he couldn't really get a good tune because I need a datalogger?

HiProfile

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDogg &raquo;</TD></TR><TR><TD CLASS="quote">thats pretty normal if its a straight t3 turbo... and what kind of exhaust do you have?</TD></TR></TABLE>

I had a bigger turbo on a sohc hitting 11psi much earlier than that motor seems to make any extra power from [initial] boost. But that also makes me ask the exhaust question - I had a full 3" dp/exhaust, no cat/2 resonators.

For a built ls-v, seems like it spools rather slow for a t3. But overall the numbers aren't bad for just a T3. Just because the motor is bigger, it doesn't mean you'll extract more power from a turbo. 2.5L volvos aren't making 300whp with their T3's, they're just peaking very early and falling off like [what their owner's pet name for their car is] - a turbobrick.

purpleh22

Are 10s and 11s a little rich? (AFRs) Whats the timing set at?? Do you have adjustable cam timing gears? Were they set up for best power?

coupe_dewille

They're nicknamed bricks because they're shaped like one, not because of the powerband...

Their powerbands do peak and then fall off like that though.

JDogg

the turbo could be going out... hell a friend of mine has a greddy kit on a d16z6 and it dosnt hit 10psi till like 5000 rpms or something stupid.

RacerXI

What engine management are you using? The car definitely needs more tuning.

twilson

Chrome Pro. The guy at the dyno shop was doing the tuning.

red_crx

iTrader: (2)

That AFR is scary...really needs more tuning

xsi-t

Like JDogg said. It's a straight T3 so you can't expect too much. It could also be going out. You said you bought the car with everything so you dont know too much about the condition of the turbo, piston rings, etc. Get a T3/T04E 50 trim .63 or Precision SC50E .63 and go back for a retune. The car could be leaned out from 5000RPM - 6500RPM a little more. It would show minimal gains but make the powerband a little more linear

PrecisionH23a

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by twilson &raquo;</TD></TR><TR><TD CLASS="quote">But anyway, here is the graph. The guy at the shop told me that their dyno has a heavy *** wheel and is a 1500hp dyno made for like muscle cars, so who knows. He told me it reads low like a mustang dyno.</TD></TR></TABLE>

That guy doesn't know what he's talking about or his Dyno settings are screwed up.

You would probably pick up another 10-20whp if you actually tune the car for a decent AF ratio. It's pig rich up top. Either way, pretty good for a straight t3.

JDogg

the tune is probably good for a few hp, but honestly thats not your problem.

see if you can get the dyno graph posted with smoothing set to zero, we might be able to tell you a little more about it then

PrecisionH23a

Yep, another thing is we don't know any of the ignition values either. From the looks of the AF chart I would be the ignition timing isn't optimal.

I'm guessing this was done on a freeware ems?

seen4ever

considering, its a pieced together turbo kit, with a crappy drag manifold, you can't expect for huge horsepower. what FMIC are you using? what size piping? is the exhaust mandrel bent?

stock b16 cams?
which wastegate? Tial or Delta gate, could be bleeding off boost in the beginning

Tune isn't the greatest, but sounds like the guy wasn't even datalogging through the computer, so he was just looking at a wideband and the tach and then playing seek and find on the laptop.

I'm sure timing is overly conservative.

Overall, how does it drive on the street? How does it feel? I've seen cars look like crap on a dyno, but drive like a dream on the street.

ATYPR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by seen4ever &raquo;</TD></TR><TR><TD CLASS="quote">considering, its a pieced together turbo kit, with a crappy drag manifold, you can't expect for huge horsepower. </TD></TR></TABLE>

Drag manifolds aren't that bad. I've seen more than a few cars make 400+ on them.

I bet the turbo is stage 1, .48AR T3.

JDogg

you dont need to datalog to get a good tune.. thats what the dyno is for

twilson

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by seen4ever &raquo;</TD></TR><TR><TD CLASS="quote">considering, its a pieced together turbo kit, with a crappy drag manifold, you can't expect for huge horsepower. what FMIC are you using? what size piping? is the exhaust mandrel bent?

stock b16 cams?
which wastegate? Tial or Delta gate, could be bleeding off boost in the beginning

Tune isn't the greatest, but sounds like the guy wasn't even datalogging through the computer, so he was just looking at a wideband and the tach and then playing seek and find on the laptop.

I'm sure timing is overly conservative.

Overall, how does it drive on the street? How does it feel? I've seen cars look like crap on a dyno, but drive like a dream on the street.</TD></TR></TABLE>

Drag Intercooler w/ 2.5" piping - I BELIEVE

He said turbonetics wastegate

I don't think he even messed with the timing. This was a retune from the previous.

It drives awsome on the street. Feels great, it is very responsive and have outrun everyone I have raced.

Anyways, he "tuned" it on Chrom Pro.

twilson

What are some turbo's that would be a direct replacement for the T3 flange I have now and be much better?

xsi-t

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by twilson &raquo;</TD></TR><TR><TD CLASS="quote">What are some turbo's that would be a direct replacement for the T3 flange I have now and be much better?

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

Too many to list