SRR dyno results thread

[gsd2000]

Here are my graphs,





The car's running rich, apparently the computer said no and started to dump fuel. I will clean the air filter to see if it helps but am going to buy efi and start logging.

My car is an 04 Monaro CV8 with a catback and remap

[gsd2000]

i was suppose to put dyno graph in the thread title

[SimonV8ster]

So whats the AFR:P ? air/fuel/ratio or something ? Within what tolerances should it be for an N/A car ?

[Boosted LS1]

Air to fuel ratio as measured by the lambda sensors. A high numerical reading is lean and a low reading is rich so power runs may be around 13, cruise could be 15 or 16 depending on how lean you want it to be and a mega flooded engine barely running with lots of black soot would be 6 or 7. You'd never go there though, it's an example.

[gsd2000]

the AFR is in the second graph around 11.5, but then starts to drop off even more

[crisisjez]

Here`s mine.

[after_shock]

Take it your happy with the results then Jez ?

[crisisjez]

Highest RWTorque on the day.. (Which is why it feels sooooo bloody quick)
Boost limited @ 11psi (Thunder Road level it turns out)
Plentys still there to go, just need to make it useable..






You betcha

Edited by crisisjez on Sunday 22 November 16:53

[MyM8V8]

crisisjez said:

Highest RWTorque on the day.. (Which is why it feels sooooo bloody quick)

Boost limited.....


You betcha

Your driveshafts must be crapping themselves!

[crisisjez]

MyM8V8 said:

Your driveshafts must be crapping themselves!

Torque curve is far less agressive than a PD blower but its still going to be mental so drivetrain will all need attention for next year.

[after_shock]

crisisjez said:

Highest RWTorque on the day.. (Which is why it feels sooooo bloody quick)
Boost limited @ 11psi (Thunder Road level it turns out)
Plentys still there to go, just need to make it useable..

You betcha

Edited by crisisjez on Sunday 22 November 16:53

Still going for in gear boost control? Or racelogic traction or something else up your sleeve for that one?

[Boosted LS1]

gsd2000 said:

the AFR is in the second graph around 11.5, but then starts to drop off even more

As it gets richer.

[crisisjez]

after_shock said:

crisisjez said:

Highest RWTorque on the day.. (Which is why it feels sooooo bloody quick)
Boost limited @ 11psi (Thunder Road level it turns out)
Plentys still there to go, just need to make it useable..

You betcha

Edited by crisisjez on Sunday 22 November 16:53

Still going for in gear boost control? Or racelogic traction or something else up your sleeve for that one?

Already have the Racelogic, will be gear and rev controlled so that I can Wot the first 3 gears without drama and yet still have enough in reserve for the next 3 gears. Its going to take some doing I think.

[gsd2000]

Boosted LS1 said:

gsd2000 said:

the AFR is in the second graph around 11.5, but then starts to drop off even more

As it gets richer.

im going to buy efi live and start logging

[ringram]

Arguably best for power on the LS engine NA is 13:1 at this point you "might" need to reduce timing. In all my tunes I actually pull timing out at higher RPM in order to run nice with 13:1 my 502rwhp was done on 95 octane and 19* timing.
Ive noticed others tunes are starting to lean up a little too.
There are a few other tips and tricks for extracting the best BHP NA which I use. Ive told Stig some, but he doesnt listen to me!

[S WO2TEC]

007vxr

[007 VXR]

S WO2TEC said:

007vxr

LS2 h122 s/c on 9psi, full wortec+cai monkfish remap 99ron fuel

[anonymous-user]

crisisjez said:

Torque curve is far less agressive than a PD blower but its still going to be mental so drivetrain will all need attention for next year.

This is the problem I've faced. Mine will run fine on 18psi but it keeps breaking stuff. Broke the diff on one dyno pull and smoked the clutch on another. You have to ask what's next - a drive shaft? gearbox? or maybe a con rod? Knowing where to stop is tough when you have the tuning bug.

[ringram]

Yep, its far too easy to go mental. I like mine at 500rwhp. Its a finished project.

[007 VXR]

ringram said:

Yep, its far too easy to go mental. I like mine at 500rwhp. Its a finished project.

after talking to some people at ssr ..i think thats what i will do power wise

Edited by 007 VXR on Sunday 22 November 19:06