tuneman
27-03-2005, 06:01 PM
Hi all,
Just been playing with a VZ ute with a massive cam in it.
I have bought the HP tuners package for my car, and have started tuning it on a dyno.
Orginally the car had a very bad RWHP and a very lean fuel, gm fixied it with a new fuel pump.
After making the car a little lose, meaning putting some km's on the clock, I started on the dyno.
These things start of with ok HP but all ways want more.
Well first of I started doing some logging and then played around with timing, hee hee the HP started to climb.
Got about 299 RWHP (223kw) i thought was killer.
Got bored about 4 weeks later and muffless was all the rage, well started of with low hp and got it up to 306 RWHP and thats the end of it, could not get any extra.
Then about 6 weeks after that bought a big stick from G&D.
Rip motor out and gearbox, throw away that gm clutch and install big new x stream clutch, man thats a nice clutch.
Put that cam in it, try and start it this is about 2 days work sort off to do cam.
Well it sort of runs, man it was noisey.
Driving was intreasing to say.
Back to the dyno I go, with the maf back in tuning i did, well was not easy.
Logging dyno runs and reflashing, man I spent money.
After about two days of doing stuff got a good horse power of 366 RW.(273rwkw)
very happy camper.
Man it sounds like a touring car, clipsal here i come.
Did try to tune it muffless but had big drop in hp, spending 2 more days on dyno playing only got it up to 354 rwhp.
My question is should I have bigger HP doing the muffless thingo or should the maf stay in.
Currently with cam in I am getting about 11.5 - 12.1 l/100kms
should I get rid of the tri-y's and go to 4 in to 1's .
Have tried differenet exhausts to.
Even run with out the cats back with no real change in HP.
Gutted the cats still no difference.
surely the tri-y's are not killing all the hp.
I was quoted 366 - 405 rwhp by the cam people.
Or should I just give up and go back to my turbo xd falcon, pushes 300 RWHP on LPG
Just been playing with a VZ ute with a massive cam in it.
I have bought the HP tuners package for my car, and have started tuning it on a dyno.
Orginally the car had a very bad RWHP and a very lean fuel, gm fixied it with a new fuel pump.
After making the car a little lose, meaning putting some km's on the clock, I started on the dyno.
These things start of with ok HP but all ways want more.
Well first of I started doing some logging and then played around with timing, hee hee the HP started to climb.
Got about 299 RWHP (223kw) i thought was killer.
Got bored about 4 weeks later and muffless was all the rage, well started of with low hp and got it up to 306 RWHP and thats the end of it, could not get any extra.
Then about 6 weeks after that bought a big stick from G&D.
Rip motor out and gearbox, throw away that gm clutch and install big new x stream clutch, man thats a nice clutch.
Put that cam in it, try and start it this is about 2 days work sort off to do cam.
Well it sort of runs, man it was noisey.
Driving was intreasing to say.
Back to the dyno I go, with the maf back in tuning i did, well was not easy.
Logging dyno runs and reflashing, man I spent money.
After about two days of doing stuff got a good horse power of 366 RW.(273rwkw)
very happy camper.
Man it sounds like a touring car, clipsal here i come.
Did try to tune it muffless but had big drop in hp, spending 2 more days on dyno playing only got it up to 354 rwhp.
My question is should I have bigger HP doing the muffless thingo or should the maf stay in.
Currently with cam in I am getting about 11.5 - 12.1 l/100kms
should I get rid of the tri-y's and go to 4 in to 1's .
Have tried differenet exhausts to.
Even run with out the cats back with no real change in HP.
Gutted the cats still no difference.
surely the tri-y's are not killing all the hp.
I was quoted 366 - 405 rwhp by the cam people.
Or should I just give up and go back to my turbo xd falcon, pushes 300 RWHP on LPG