Racing Chip For R33

[R33_Rob]

i have been told that to make my R33 GTS that bit faster i can install a "racing chip"

Does anyone have any experience with what type of chips work the best and how much they are.

thanks

[-{danny}-]

i was going to make the same topic about a racing chip 4 my r33

my mates have been telling me to install a chip

but i have no idea who does it wat brand i should use and how much it would cost so if anyone could help in this thread it would be great

[cookie300zx]

you are better off getting a chip burnt or safc tuned for your specific car than installing a one size fits all chip. alot of the chips out of japan are not good for australian fuels because they are tuned for 101 octane fuel. the jap ones run too much ignition timing and are often dangerous.

[ignuz]

Some guy was in here a while ago selling mines r33 n/a ecu's...

[scathing]

Given that its NA and you're probably not running a stripped down engine, I'd look at a piggyback. At a bolt-on level of tune the gains from going to a standalone ECU aren't worth the cost.

A'PEXi SAFC, Unichip (if they make one for your RB25DE), or the GReddy eManage / HKS F-Con etc would be fine. You'd then need to get it tuned.

But, as everyone else has said, don't get a "one size fits all" ECU. Its not tuned for your mods, so you'll either not get all the gains you could (which makes it a waste of time and money) or at worst it'll damage something.

If your car doesn't have any other mods, you'd be better off getting a catback exhaust before touching the ECU.

[slip]

itll do bugger all. if you could magically reprogram the ecu and suddenly your car noticably better for racing then that would be so lovely, but if you could make the car that much better with the ecu alone, nissan would have made it like that. itll hardly make your car faster, it probably wont change you laptimes around a track etc. if you don't know that much about cars you probably wouldnt even notice a difference. to get more power out of an na 33 takes money, and you WONT get easy gains like a turbo car. you could put a full exhaust system on and make less power. you might make more. it might stay the same. Turbo it or spend $$$$$ making the RB25DE go harder (still not as hard as a turbo) OR....spend your money on things that will noticably make your car better for "racing", depending on your idea of the term..... (not the red light variety). My meaning would involve actually driving round corners.

For an NA 33, in order of how much it will improve your speed.

1. Driver training - skidpans/trackdays/motorkhanas/anything that involvers performance driving with tuition/supervision. That, and developing your understanding of the mechanics/dynamics of a car.

2. Suspension

3. Brakes

Helpful note: People that say "you should put a racing chip in it" have no idea, or are making fun of you. And if you are talking to someone who knows cars and you say that your 33 GTS has a racing chip you're going to look like an idiot.

[R33_Rob]

thanks for the variety of answers, i think ill just get a K & N cold air intake and save my money for a GTR

[cookie300zx]

on my NA 300zx i gained 22rwkw just from SAFC tune. no ignition timing increase. the reason nissan could not make their cars with the "ideal tuning" is because they have to run everything very safely because alot of people don't look after their cars. look at how rich factory ECU's run. NA 300zx's ideal A/F ratio is around 12.8:1, i imagine this would be not too dissimilar to NA skylines. my car before tuning was running at 10.5:1. it will make your car go faster, it will change your lap times, you will notice the difference, and you will save noticeably on fuel. it will make the car nicer to drive daily with more low-mid range torque. yes brakes and suspension are important, but i doubt that he is talking about racing his car on the track, more likely he is just using the term "racing chip" as a descriptor for modifying the ECU settings.

itll do bugger all. if you could magically reprogram the ecu and suddenly your car noticably better for racing then that would be so lovely, but if you could make the car that much better with the ecu alone, nissan would have made it like that. itll hardly make your car faster, it probably wont change you laptimes around a track etc. if you don't know that much about cars you probably wouldnt even notice a difference. to get more power out of an na 33 takes money, and you WONT get easy gains like a turbo car. you could put a full exhaust system on and make less power. you might make more. it might stay the same. Turbo it or spend $$$$$ making the RB25DE go harder (still not as hard as a turbo) OR....spend your money on things that will noticably make your car better for "racing", depending on your idea of the term..... (not the red light variety). My meaning would involve actually driving round corners.

For an NA 33, in order of how much it will improve your speed.

1. Driver training - skidpans/trackdays/motorkhanas/anything that involvers performance driving with tuition/supervision. That, and developing your understanding of the mechanics/dynamics of a car.

2. Suspension

3. Brakes

Helpful note: People that say "you should put a racing chip in it" have no idea, or are making fun of you. And if you are talking to someone who knows cars and you say that your 33 GTS has a racing chip you're going to look like an idiot.

[R33_Rob]

Yes you right cookie300zx, im not gonna race on the track against other Skylines because i will probably have my arse handed to me, but hey gotta start somewhere right. I was meaning having the ECU modified. What is with the different geear ratios eg 12.8:1 & 10.5:1, what does that mean in plain english?

[Eug]

he's not talking about gear ratios...

he's talking about AFR (air to fuel ratio)

basically its air:fuel

a 12.8:1 ratio means that the mixture going into the motor has 12.8 times more air (mass) than fuel

[Yo-Yo]

I saw a "LAP" chip for an rb25de on just jap's used electronics section

maybe this is the kind of thing you're after?

http://www.justjap.com/parts_uelectronics.htm

[Maxx]

on my NA 300zx i gained 22rwkw just from SAFC tune. no ignition timing increase. the reason nissan could not make their cars with the "ideal tuning" is because they have to run everything very safely because alot of people don't look after their cars. look at how rich factory ECU's run. NA 300zx's ideal A/F ratio is around 12.8:1, i imagine this would be not too dissimilar to NA skylines. my car before tuning was running at 10.5:1. it will make your car go faster, it will change your lap times, you will notice the difference, and you will save noticeably on fuel. it will make the car nicer to drive daily with more low-mid range torque. yes brakes and suspension are important, but i doubt that he is talking about racing his car on the track, more likely he is just using the term "racing chip" as a descriptor for modifying the ECU settings.

if u take a closer look how SAFC works, u are advancing the ignition timing when u lean it down

[R33_Rob]

I think thats what im after Yo-Yo

[slip]

well I haven't seen gains like that with an SAFC on a 25DE, I was being car-specific.

[cookie300zx]

if u take a closer look how SAFC works, u are advancing the ignition timing when u lean it down

cuold you explain that in more detail please. my base timing is set at 15 degrees (stock for 300zx NA) so could you explain how the ignition timing is being advanced by leaning out the AF ratio?

[cookie300zx]

I saw a "LAP" chip for an rb25de on just jap's used electronics section

maybe this is the kind of thing you're after?

http://www.justjap.com/parts_uelectronics.htm

those are the things i was saying you should not be buying. would be tuned for JAP fuel, and you have no idea what the AF ratios and ignition timing would be set at! could be rather dangerous, and you won't get the same gains as a chip/piggy back that has been tuned for your car

Edited June 6, 2006 by cookie300zx

[blackprincegts]

Personally i think if your going to keep your NA for a while and you love your car it can be a good idea to go for an ecu tune.

If your just going to do simple mods like exhaust&intake mods I would expect that you could certainly expect more power from getting your ecu modded.Put it this way, on my rb20de with 2 1/4 inch exhaust and k&n pod i made 85kw@wheels. Then the timing was advanced just a few degrees and it consistantly jumped up to 89rwkw's. When they mod your ecu they will generally change both your fuel and ignition maps together. If your going to run 98ron fuel all of the time then they would likely advance your timing right throughout the rev range as well as lean out your afr's a bit depending what they look like. I would say you could get maybe 6 or 7rwkw's out of it if it was done well.But thats just a rough estimate. wouldnt expect to much more than that.

The place im getting my rb20 ecu tuned for my turbo setup doesn't do rb25 ecu's yet.

Ohh and my old u12 pinny ka24e made 3.8fwkw's more after just timing advance so it gives you an idea of the extent of which tuning will effect the power of your NA.

[Chi3f]

I have a rb30... Im yet to work out what it has done except add about 5rwkw. Tested it on a dyno but i just cant work out what it changed! Fuel consumption has stayed roughly the same and as far as i can tell the timing hasnt changed... The car runs a little smoother and i was told it would help elliminate any dark smoke but I didnt have much in the first place. Picked it up for $40 so i thought id give it a go.