Dyno Print out -



Motor Spec -

Benson sleeved 83mm B20 block
89mm Benson balanced and micropolished crank
CP 9-1 pistons/rings, Eagle 3/8 rods, ACL bearings
New OEM oil pump, new pick-up, new waterpump
ARP head studs and Cometic head gasket
New SuperTech valves, dual springs and titanium retainers
B16 VTEC head with 3 angle valve job, new seals, surfaced, all done by
PortFlow
CTR intake and exhaust cams, AEM 5 bolt cam gears
New STR fuel rail and new 1000cc RC Injectors
Edlebrock Victor X with stock throttle body, sensors and vtec selenoid
Oil pump adaptor with ls/vtec line in place
external coil plug and spark plugs
New timing belt, harmonic balancer
Driveshaft shop stage 3 driveshafts
SPA gauges
Motec M4 pro ECU
Full Race Stage 3 Pro-am Kit (top mount)

Built by Laskey Racing, tuned by Owen Developments

Pics will come shortly........

 

I am assuming that this is an all drag car based on the power curve?

 

Weekend driven and some dry evenings.

Over here in the UK the weather sucks so its hard trying to get traction in the rain

 

something doesent look right.

what was your target boost?

it seems the boost came on very late but then was creeping the rest of the way??

 

what turbo are you running?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostedEG6 &raquo;</TD></TR><TR><TD CLASS="quote">what turbo are you running?</TD></TR></TABLE>

should be the 67/p , thats what comes with the stage 3 kit

 

Garrett T3/T67 HO

I doubt the boost is creeping, its all being monitered by the motec m4. The boost isnt moving.

 

im gessing this is on race gas?

 

look at the graph, it dosent lie. peak tq. at 8000rpm??? something isnt right

 

looks like the full boost come on 7500-8000
its big turbo, for this HP better smaller turbo and get power earlier

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by miller &raquo;</TD></TR><TR><TD CLASS="quote">look at the graph, it dosent lie. peak tq. at 8000rpm??? something isnt right</TD></TR></TABLE>

Yeah I was going to say the same thing.... I have that turbo and I know that its not that laggy something seems to be wrong somewhere along the line

 

When I saw that chart - before I read the build sheet - I figured it was a B16 with some funny tuning. That torque curve isn't right for an 89mm B20.

 

My b16 with the same turbo got full boost before 7k so something is off.

 

To be honest i have no idea, i love the way it drives though.
The turbo is an .82a/r. It was tuned on our pump gas so 98ron.

 

if you like/happy with it then thats all that matters

 

Just means i have to rev it more, as its not used everyday its not much off a worry.

Just out of intrest what would cause it to make boost that late on??

 

Lines aren't crossing at 5250. Hmm. The low boost torque curve (flat 6000 - 9000?) doesnt cross any of the HP curves at 5250. High boost looks kinda ok.

Post a proper dyno graph and we might be able to help more. At a first glance, it looks like boost controller issues. Look at the slope of the line of the high boost torque compared to the low boost torque. The low boost torque is rising at a faster rate from 4500 - 5500 than the high boost torque. Also, the torque for pre-spool from 2000 to 5500 or so is radically different. Are you using a bang-bang style antilag? I'm going to guess that your low boost setting is somewhere in the 11-13psi range based on the T3/T67 cars I've tuned.

There are a lot of very weird things in your graph. I've played with the turbo you are using (T3/T67HO) on some of the older Full-Race kits and the boost curves / torque curves look very very very different than your high boost setting.

I'll shoot you a PM with a link to a dyno of a 81mm GSR w/ T3T67 for comparison purposes. I think you'll see what I mean.

 

thanks man, il check it out.

 

wheres some pictures of the car and setup

 

Wow good numbers on CTR Cams!! Congrats

 

Thanks for the in put, think some of you may be confused by the graph. Its not low boost and high boost plots. Its one boost figure of 1.17 bar. (16psi)

The lines represent Flywheel hp and torque, and wheel hp and torque.

- 540 @ flywheel hp which is 415 @ wheel hp

- 344.9 lbft @ flywheel which is 218 lbft @ wheels

 

Damn, that makes less sense. Power is very low IMO.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rex_racer728 &raquo;</TD></TR><TR><TD CLASS="quote">Wow good numbers on CTR Cams!!</TD></TR></TABLE>

Why would you say that? CTR cams are the ****