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33 Gtst-t... Missing Its Punch

tm_r33

By tm_r33,
in Engines & Forced Induction

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tm_r33 Experienced

tm_r33

Posted
Posted

I decided to take the car cover off the big 33 this morning and take her for a spin. Just got home and i dont have the usual smile i do when driving my car.

Its about to tick over 100 000 km (unfortunately) so she is due for her major service anyhow.

i did notice this morning it certainly doesnt have the punch and throttle response it did at about 85,000km when i brought it. its had regular oil and oil filter changes since then and coolant and gearbox oil when i brought it so i have not neglected the poor thing of fluids. also replaced pod filer.

my thoughts for next week when i do full service are as follows...

*new bosch platnium plugs

*new o2 sensor

*mutul turbolight 4100 engine oil

*drift magnetic oil filter

*coolant

*motul diff oil (im opening diff to shim it anyway)

*bosch fuel filter

*service standard injectors

will also take to a workshop to get timing belt, front mainseal and waterpump done.

car has always been filled with bp ultimate since ive owned it. mods are.. front mount, cat back exhaust and 12psi.

Fuel consumption has always been high but i assume its running fairly rich. any thing anyone can suggest to regain any of my missing power would be greatly appreciated??

am i missing anything in major service too?

thanks.

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https://www.sau.com.au/forums/topic/271471-33-gtst-t-missing-its-punch/
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paulr33 Grand Master

paulr33

Posted
Posted

what ecu / piggyback are u using? or remapped ecu?

the stock ecu wont like 12psi so you must be using something else

check the basics, check timing (with a timing light)

check all fluids, look for any obvious leaks etc

if stock ecu, try resetting it

tm_r33 Experienced

tm_r33

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  • Author
Posted

standard ecu with a remap im pretty sure. i know it cant be running the standard tune because a friends kid wound the boost controller right up and it ran at 20 psi for a few minutes the next time i drove it. not that any damage was done i only came on boost a few time befor i noticed but it didnt miss or rich and retard or anythng so def not standard tune i assume.

89CAL Grand Master

89CAL

Posted
Posted

standard turbo? at 20psi for a few minutes it wouldnt have liked that?

id definetly try new plugs and a fresh tank of fuel.

BTW, should go for some motul 8100 (xcess i think it is) only 20 buks more then turbolight and its full synthetic. Just an idea. Let us know how it turns out.

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