Power Gains From Microtech Comp

[RellikZephyr]

Car is 1990 R32 GTR

Power Mods 3" Turbo back zorst, Apexi Pods, Stock Turbos

Other Mods Suspension, Clutch, Aluminium Radiator

First run with stock ECU

Second run with Microtech LTX12 ECU, Bosch Coils and Ignition pack (only changes)

Was fairly surprised with result made 5 kw more with 4 psi less boost

and the 17 psi run, i was a little worried when he told me cause of stock turbos but they held no prob

Car now running 9 psi might turn boost up to 12 psi on weekend and leave it there

Boost isnt as smooth as i would like, but will prob get a Profec B-Spec II soon

All in all im quite happy, what you people think?

RellikZephyr

[Abo Bob]

Bloody difficult to compare when one is p and the other in kw. Those MX Dynos are happy in my experience, but not necessarily in this case.

That said you appear to have lost a bit of mid range with the low boost setting. I don't have a GTR but I wouldn't run it at 17psi on stock turbos if I had one. I think that 12-13 daily is fine.

What fuel are you using?

[RellikZephyr]

yeah as soon as i was told about the 17 psi i said NOOOOO and turned the boost down to 9 psi

i am running Shell V-Power 98 RON fuel

and thats why i modded the pic to include the KW reading on the HP chart

RellikZephyr

[sav man]

I got 226 rwkw with a PFC, Big FMIC, and 3" catback @13.5 psi. But I didn't do a back to back with the old ECU.

running over 1 (~15 psi) bar on stockers isn't wise.

[RellikZephyr]

yeah the mechanic wasnt aware they were the stock ceramic turbos

luckily they held and if they didnt not my fault therefore he would have had to fix

but it has told me my stockers are in good nick

RellikZephyr

[Guilt-Toy]

So your saying this guy will pay for your engine if it blows up when its on the Dyno ???

Tell us his details.. I bags the first tune. This guy is gona get real busy really soon.

  RellikZephyr said:

yeah the mechanic wasnt aware they were the stock ceramic turbos

luckily they held and if they didnt not my fault therefore he would have had to fix

but it has told me my stockers are in good nick

RellikZephyr

[RellikZephyr]

if it blew because HE put too much boost into it

then damn right i would have made him

i never told him to set the boost that high

i had a EBC in there set to 14psi and it evendently wasnt set up quite right

so he put a manual boost controller on (to trouble shoot the EBC) and set the boost to 17 psi of his on decision

if it blew because of that and he didnt want to fix it i would have taken him to court

RellikZephyr

[rob82]

I made 240rwkw at 12psi on my stock ECU with after I had tuned it. IMO I would never disgrace a GTR with a Microtech.

Edited November 30, 2006 by rob82

[shnaped_second]

Was this power reading in 2wd?

[R31Nismoid]

doesnt really make a diff 4wd or 2wd from results posted on here thus far

[shnaped_second]

The original reading of 199kw at 9psi, would be a fair bit at all fours wouldnt it?

[R31Nismoid]

Not really, when you see stock turbo'd cars generally making around 240-250rwkw on around 1bar give or take a pound.

[RellikZephyr]

readings are in 2wd

so from all the talk mine does seem to be reading a little low

might have to check the health of my engine before i go too much further

RellikZephyr

[nfi]

I would suggest its not the engine but the microtech. The resolution on those things is really poor. You just can't have a really good tune. They are great if the car is only going to run flat out (ie drag racing) but not very accurate with partial throttle and closed loop.

[RellikZephyr]

but if they are good for drag style stuff

you would think they would still give a good power reading on a dyno run

right?

RellikZephyr

[R31Nismoid]

Depends on your tuner

[Beer Baron]

i think 200kw atw with 9psi on stock ecu is high, not low.

[HRthirtyone]

i run an LT-12s and i still get 380-400kms out of a tank in my r32 so it must not be that poor in light load situations........

[KamikazeR33]

yeah i used 2 have one in my r33 with bigger turbo n would get 400kms round town n 600 on highway driving

[RellikZephyr]

  Beer Baron said:

i think 200kw atw with 9psi on stock ecu is high, not low.

That 199rwkw is with the microtech

with the stock ecu it was 194rwkw at 13.5 psi

RellikZephyr