Rb25De N/a Chip Options

[bikerboy14]

Are there any chips that increase the performance on

A nonturbo rb25

[sydking]

Probly mate, but its not worth the money spent. spend money on good tryers and suspension handling if you must. other then that just wait till you can do it all properly.

[zebra]

Nistune

[mad082]

look at something like a nistune or pfc or a piggyback system such as a safc or emanage. there is no off the shelf 'chips' that will give you any performance gain (at least none worth talking about).

[bikerboy14]

Nistune how much would it cost? Where could i get it done?

Edited January 13, 2011 by bikerboy14

[TwoCents]

Nistune how much would it cost? Where could i get it done?

I would allow for around $800-1000 installed and tuned

[Mohsen]

powerchip

[bikerboy14]

Yeah I looked up power chip and found that they don't have a rb25de chip I would say that the Nistune would be the best way to go though I can't find any forms, that have information on them. only thing I can find is a video of an r33 on a dyno with a Nistune with BIG power gains.

[TwoCents]

Yeah I looked up power chip and found that they don't have a rb25de chip I would say that the Nistune would be the best way to go though I can't find any forms, that have information on them. only thing I can find is a video of an r33 on a dyno with a Nistune with BIG power gains.

http://www.nistune.com/

tried their website

[bikerboy14]

Yeah I looked it up Abit more and found that I could get the nistune done off envy inports in sydney for $1100 so that sounds great and that would give me 20 more kws at the wheels and get cams done for about $1200 but I think that's abait to much of a power gain for a p plater

[Kinkstaah]

I have been told many many times Nistune does not work on the RB25DE ECU (R34 GT)

nfi about R33 or 32..

[TwoCents]

I have been told many many times Nistune does not work on the RB25DE ECU (R34 GT)

nfi about R33 or 32..

You have to buy an ecu out of a z32 and modify it a bit, put the nistune in and then it will work with the rb25's.

Another option is to use an r32 ecu with the nistune, but then you lose the VCT.

[bikerboy14]

Might as well buy a whole new ecu?

if I have to buy a another ecu then buy the Nistune. I don't have that much money. lol I am saying this because they can just upload the Nistune software on it right?

[mad082]

Might as well buy a whole new ecu?

if I have to buy a another ecu then buy the Nistune. I don't have that much money. lol I am saying this because they can just upload the Nistune software on it right?

no you can't simply load the nistune software (or any software for that matter) onto any stock skyline ecu. they require a daughterboard installed into the ecu, but not all of the skyline ecus are compatiable. most places should be able to get you a z32 ecu, install the board and then tune if for around $1000 to $1200. z32 ecu's can be had for pretty cheap these days (under $200). to put this into perspective, most stand alone aftermarket ecus cost quite a bit more than that for just the ecu without any tuning done (and the lower end aftermarket ecus such as the pfc won't give you any real advantages of difference in performance over the nistune).

also for a NA i wouldn't expect a 20kw gain in power from a tune. i'd expect more like 10kw. 20kw is more what you'd gain from a tune on a turbo skyline.

[bikerboy14]

thats what they said to me when I gave them a call and there is a video of them achieving more then 20kws with a r33 s2.

20 extra kws won't damage the engine will it?

[mad082]

that 20kw was probably a bit of a one off. you will find that the average power gain they see is probably less than that. also there are some tuners out there who will do a tune, then if the power gain isn't that much they then alter a few settings on the dyno to bump up the power figures (and it's not always the ones who are known to be dodgy, plenty of the 'reputable' ones have done it too). not saying that the place you are talking about would do that, just simply saying that expecting 20kw from a tune is a bit much for an NA unless you were putting in a set of cams too, or the stock ecu was throwing a fault code and they fixed that at the same time.

as for 20kw damaging the engine, that depends on the tune. a 20kw gain won't damage the motor simply from the extra power, however if they do a safe tune and it only makes 5 or 10kw more and they want to make it a bit better then they may start to add a bit more timing into it or lean it out a bit more and start to make it not so safe. this then reduces the margin of error that the engine has if something happens such as the fuel pump starts to die or an injector gets a bit dirty. this is part of the reason why power can be gained over a stock ecu. they are tuned to be extremely safe to give a large margin of error.

[bikerboy14]

U seem to have a good idea on this. What do u think I should do I have an exhaust pod cai but it just doesnt put out enough for a skyline u know I just want enough power in case a xr6 or a sv6 comes next to me on a race track;). That's all I want 0 to 100 in 7seconds.

[mad082]

you will have to face the fact that a NA skyline simply isn't that fast. if you go up against a falcon or commodore with similar mods to you you will lose. i've said this many times on here, but i will say it again (so sorry to those who are sick of hearing it). i had a 3.5L v6 manual magna. with just a cat back exhaust it ran 14.8 at willowbank. it was just the base model executive. there are plenty of vrx versions in the 14.4 to 14.6 bracket with minimal mods (full exhaust).

[bikerboy14]

Oh man.... Hide some Nos in it lol that would get it going lol

[zebra]

you will have to face the fact that a NA skyline simply isn't that fast. if you go up against a falcon or commodore with similar mods to you you will lose. i've said this many times on here, but i will say it again (so sorry to those who are sick of hearing it). i had a 3.5L v6 manual magna. with just a cat back exhaust it ran 14.8 at willowbank. it was just the base model executive. there are plenty of vrx versions in the 14.4 to 14.6 bracket with minimal mods (full exhaust).

I wont say anything