General Help With R33 Gtst

[mr.33]

I have a pretty stock r33 with a intercooler, blow of valve and a air filter which all other parts being stock i think and recently took my car for a service/tune. Sorry if i sound stupid in advance i dont know much about cars and i tried using the search function. The guy said fuel pump was broken and replaced it but i was wondering how the fuel pump would brake so i can avoid making the same mistake?

Also i got it on the dyno and got 188kw running at 11.5 pounds of boost. Is that normal ? I've also been wanting to start working my car up but am a bit lost with where to start. Is there a general guide on these forums to help me get started or educate with the basics of what i need to know ? Also, if i want to start working on my car where should i start and what are quick things i can do that arent too expensive to increase performance ? thanks in advance !

[mad082]

ok, the fuel pump just wears out over time and there isn't anything in particular you can do to prevent it. find out what sort of pump he replaced it with as this may be something that you need to look into when upgrading further. if he went with something like a bosch 040 then you will be fine, but if he only went with a stock unit then if you start chasing more power it might be worth upgrading to a better unit (such as the bosch i listed).

you listed your mods, but didn't mention the exhaust. does it have a bigger exhaust, or just the stock system? i'm guessing by your power figure that it would probably have a 3" exhaust as you would struggle to make that power with the stock one. but that power level is about right for that boost level and those mods.

as for modifying it, firstly, if any of the exhaust is still stock, such as the dump pipe, then i'd start by upgrading that. after that you are pretty close to the limit of what both the stock ecu and stock turbo will handle. the turbo will go a bit higher, but the life expectancy of it dramatically shortens. there are many options when it comes to upgrading both ecu and turbo, but depending on how far you want to take it you may be going into the area where other mods are needed such as injectors and AFM as they don't go that far beyond the stock ecu and turbo. many people will tell you to go with a pfc as a replacement ecu, but personally i would go with a z32 ecu and a nistune daughterboard. this will set you back about half of what a pfc will and do pretty much the same thing.

[mr.33]

hey i wasn't sure which part of the exhaust you were talking about so i figured the easiest way was to take a few pictures of mine. Do you think i need a upgrade with this exhaust?

Also another question regarding the computer. Do i need to get it tuned or whatever everytime i get a upgrade? so if i do upgrade the exhaust would i need to get it tuned again ? if not when do i need to get these things done as im not quiet sure ! thanks alot for the help !

[BstewyR33]

if any of the exhaust is still stock, such as the dump pipe, then i'd start by upgrading that.

hey i wasn't sure which part of the exhaust you were talking about so i figured the easiest way was to take a few pictures of mine. Do you think i need a upgrade with this exhaust?

if its a 3" exhaust from the cat converter back (ruffly located under the passenger seat section of the car), then upgrade it from the turbo back to make it a complete 3" turbo back exhaust (ie. dump pipe, front pipe and cat converter)

[mad082]

hey i wasn't sure which part of the exhaust you were talking about so i figured the easiest way was to take a few pictures of mine. Do you think i need a upgrade with this exhaust?

Also another question regarding the computer. Do i need to get it tuned or whatever everytime i get a upgrade? so if i do upgrade the exhaust would i need to get it tuned again ? if not when do i need to get these things done as im not quiet sure ! thanks alot for the help !

with the stock ecu you can't actually tune it, so you don't need to do anything when you upgrade things, however somethings you upgrade require an aftermarket ecu to run them. a good example of this is if you put in bigger injectors. the stock ecu is setup to think that the injectors are 370cc, so if you go and put in bigger ones it will still think it has 370cc ones in there and be dumping in way too much fuel and you'll be luck if the car will even start.

things like a bigger turbo will require an aftermarket ecu and for it to be tuned if you want to run bigger boost, however they can be run on the stock ecu at very low boost as they will still be in the paramaters of the tune on the stock ecu. you just wouldn't really make any more power than on the stock ecu.