Microguess

[black sky]

Hi people

i did the search and there are alot of good tuners out there but most of the good tuners won't bother with the good old microguess.So i'm after tunners in sydney that really know there shit and are willing to tune my car!!!! it's a microtech lt12s so it's one of the new ones.any ideas???

by the way whats a safe AFR to be at on wide open throttle???

Cheers

anthony

[MR331307]

Hi people

i did the search and there are alot of good tuners out there but most of the good tuners won't bother with the good old microguess.So i'm after tunners in sydney that really know there shit and are willing to tune my car!!!! it's a microtech lt12s so it's one of the new ones.any ideas???

by the way whats a safe AFR to be at on wide open throttle???

Cheers

anthony

Safe

Up to 10 psi 12.0

Up to 20 psi 11.6

Up to 30 psi 11.2

Where abouts in sydney are u

Edited October 25, 2006 by MR331307

[N1GTR]

Hitman

He's out near Penrith somewhere

Or Hills Motorsport

Or MRC Dyno

[black sky]

Hitman

He's out near Penrith somewhere

Or Hills Motorsport

Or MRC Dyno

yea been to hitman he's a little bit pricey had my car on the dyno for anhour and a half and charged me $500

i'll give the other two a call tomorrow

cheers

anthony

[paulr33]

i dont think AFR has anything to do with boost at all

its purely engine load and exhaust temps

saying 11.5AFR at 10psi means nothing

what if he using a stocker turbo? what if he using a gt42?

they both flow completely different amounts of airflow at 10psi

[N1GTR]

yea been to hitman he's a little bit pricey had my car on the dyno for anhour and a half and charged me $500

i'll give the other two a call tomorrow

cheers

anthony

No problems

Tell us how you go cause i need mine retuned in a while aswel

[black sky]

Well i've booked it into adam at JEM he's a top bloke and always looks after me in terms of price and always fixes everything up before he gets it off the dyno the only thing is that he doesn't really like the good old microtech's.

my car at the moment has an rb20 with the following mods

GT30 turbo .63 rear housing

apexi AVCR

Wallbro fuel pump

GTR injectors

3" zorst

100mm blitz front mount

cam gears

microtech lts12

tial 38mm wastegate

and i'm wanting to run it off 18-19psi

because the motor is untuched internally.

i got a tune in melbourne but shorted out the battery and lost it. And cause of my crap manifold design i was making 231rwkw but that was with boost set at 14psi creeping up to 18psi and that was making 18psi at 7100rpm!!!

so i'm putting the standard manifold back on and welding the wastegate on to it so i can reach 18psi straight off the bat with no creep.

any estimations on power??? by the way the red line is set up to 8400rpm

Cheers

anthony

[paulr33]

i would be worried about the walbro pump

they have known baddies and tend to fall off in flow as well

make sure the fuel pressure is watched closely, so it doesnt lean out and go bang. doesnt the microtech save its tune in nvram?

[psybic]

Pretty sure it does. I often disconnected batteries on previous cars with microtech and had no drama's.

Make the effort to drive up to RX Engineering if you want a solid tune. I would. Then again, I have heard really good things about Dave Flood from Sydney.

Oh, if you find its just all too hard, I'll take the LT12 off ya hands if you want and you can go PowerFC. lol

[black sky]

Pretty sure it does. I often disconnected batteries on previous cars with microtech and had no drama's.

Make the effort to drive up to RX Engineering if you want a solid tune. I would. Then again, I have heard really good things about Dave Flood from Sydney.

Oh, if you find its just all too hard, I'll take the LT12 off ya hands if you want and you can go PowerFC. lol

To be honest i don't know what happened i know that the battery shorted out and then the car wouldn't idle and then i got some guy to come down and do a quick tune so i could drive it back to sydney but it was running way to rich he said he had to put in an extra 50% fuel to get it to idle then i think what ever the problem was it fixed itself up because i was only getting 210-220km for a full tank on the highway. The car was running very rich with black smoke and the plugs were fouling so i pulled out 40% of fuel and it drives much much better but i'm not sure on the AFR so i'm not hitting full boost till i get it tuned.

I don't mind the microtechs it's the tunners that don't like them.

and if your talking about dyno dave heared some pretty bad stories about him from a good friend of mind that took his car there.

Cheers

anthony

[Abo Bob]

I would definitely replace that pump before you put it in for a tune. It's unsafe above about 240rwkw and I think you will get about 260rwkw.

[N1GTR]

The stock pump will be fine for 260rwkw - they're $100 second hand, or if you have the old one lying around throw it back in

Or, go 044

[Beer Baron]

The stock pump will be fine for 260rwkw - they're $100 second hand, or if you have the old one lying around throw it back in

Or, go 044

stock RB20 pump is no way good up to 260rwkw. well not if you want your engine to last. i would suggest a nismo pump. plenty of people like the bosch pumps but they require stuffing around to fit, and i do know of plenty of dead ones out there.

also, what type of injectors are you using? surely not stock ones!

[Abo Bob]

The stock pump will be fine for 260rwkw - they're $100 second hand, or if you have the old one lying around throw it back in

Or, go 044

It's not a GTR.

I actually only just noticed it was an RB20 so maybe my expectations above are a little high.

[N1GTR]

stock RB20 pump is no way good up to 260rwkw. well not if you want your engine to last. i would suggest a nismo pump. plenty of people like the bosch pumps but they require stuffing around to fit, and i do know of plenty of dead ones out there.

also, what type of injectors are you using? surely not stock ones!

It's not a GTR.

I actually only just noticed it was an RB20 so maybe my expectations above are a little high.

Oops, didnt know it was RB20 - sorry

[Link]

Adam from JEM in Moorebank!

One of the best!!!

[NXTIME]

mate, check your PM.

[moonus]

hitman aint pricey dude. he is such a helpful tuner and from my experience he went out of his way to find the problem in my car when he tuned my power fc. unigroup are good as well

[GeeTR]

i dont think AFR has anything to do with boost at all

its purely engine load and exhaust temps

saying 11.5AFR at 10psi means nothing

what if he using a stocker turbo? what if he using a gt42?

they both flow completely different amounts of airflow at 10psi

I don’t know about “has nothing to do”

Boost pressure behind the inlet valve would play it’s role, as it’s a measure of a combustible gaseous mixture that then has a proportional relation to peak cylinder pressure, a precursor to the exhaust temps you mention, with both of these being wot promotes detonation.

There’s no set AF / Boost though I would think there’s an optimum AF [stoch] then a) as much headroom u wanna add in case of wotever, bad fuel, hot day, good hook up, dieing f.pump and b) tweaking for times of extra requirement like peak torque or if the setup is prone to deto at higher RPM etc.

Requires ratios for your setup, is part of what you pay your tuner for.

My 7c

- M

[MR331307]

i dont think AFR has anything to do with boost at all

its purely engine load and exhaust temps

saying 11.5AFR at 10psi means nothing

what if he using a stocker turbo? what if he using a gt42?

they both flow completely different amounts of airflow at 10psi

....... ok = my 2c