http://www.prospec-ms.co.uk/merchandise/nismo_350z.html

This has the 'MINES' Ecu upgrade that will do I'm sure exactly what the NIsmo that is said to be "The ****"+ raise the red-line as well,...

Resetting of ignition timing map.
Rev limit 7,000rpm (Std: 6,600rpm)
Resetting of the electrical controled throttle
£628.00 (Subject to part exchange, shipping)

Plus they got some Phatty MINES springs along w/ all other types of stuff,..CHECK IT Out!!!!

 

Here is the correct link:
http://www.prospec-ms.co.uk/merchandise/mines_350z.html

 

http://www.prospec-ms.co.uk/merchandise/mines_350z.html

 

They need to provide a dyno.

 

I posted this about a month ago and was told that this is for the JDM cars only. That I would not want this on a US model.

Can anyone tell me why?

 

I wonder if it's due to the higher octane requirements that Japan has, as well as the emission standards.

 

forgive the lack of technical jargon, but when messing with the ECU, how can you increase a motor's redline? I mean, I understand rev limiter-wise, but I thought redline was related to mechanical damage/failure. If you wanted to go above factory redline, wouldn't that necessitate building a stronger motor?

 

You kinda answered your own question but I'll respond anyway. Yes you can raise the rev limiter by modding the ECU. Many engines are built to tolerate higher RPMs then the factory limits them to. They have a built in buffer so to speak. When you start talking actually modifing the motor to run at higher RPMs then you do need to alter internals. Lighter pistons and rods, stronger crank, all of which need to be balanced and assembled with very tight tolerances. Please note, I'm not really trying to explain how to build a high RPM motor at that is a bigger subject than we're going to cover right here and someone more qualified than me should be the one to do it. In conclusion your are correct that you can change the rev limiter with the ECU but to truely raise the RPM ceiling you need to build the internals of the engine.

 

the key here is doing it, and doing it safely. they dont have to warrenty anything. the engine could probably rev to 7000RPMs without any trouble. a piston wont shoot out the hood, life will go on. but it could, which is why nissan goes as high as they are 100% comfortable with. not to say at 6601 the engine explodes, but you know what Im saying.

Im sure the engine is fine at 7000 but minute flaws become large ones as you rev it higher and higher.

F1 car rev to like 18000RPM, thats how they get such insane speeds out of no larger than a 3.2liter engine.or is it 3.1? eh, not important, power can be had without huge displacement, horspower and torque include RPM in the equation.

 

I am not sure why you would want to rev to 7000, unless their map (and exhaust, etc) can put more torque towards the top of the rpm range.

 

thats a good point, tho, you would be able to keep the gearing in your favor to a higher speed, or reduce your gearing to keep the same final speeds for each gear, but get their faster as you rev through the band quicker.

I donno how much 400RPMs would help, specially since as you said, the power drops off hard at that point. but remember, the farther you get away from 5250 the faster hp will go up if you just increase it by a little. thats how S2000 benifits so much in its upper range, just a little increase, multiplied by those RPMs in the equation does great.

 

The ECU would probably work well with other mods like cams. If this ECU also changes the cam timing I could also see the use of raising the rev-limiter to 7000. I don't see any reason why this motor couldn't be revved that high, it is a big bore/short stroke design which should be good for high-rpm HP.

 

How many of you have hit the rev limiter in the car under performance driveing? I have. Maybe I'm a little inexpeinced (which I would fully admit to) but I know I have wished on multiple occasions that the redline was just a tad higher. I think that's all they've done here. The car likes to be shifted late. Power does drop of quickly but it also revs so quickly in the lower gears that the extra 400rmp would give you that extra moment to shift before hitting the rev limiter.

 

heck why bother!? save another 300 bucks and ill be getting another sds system. that way you can set your own parameters.
the 350z is one great car, but i think the aftermarket tuners are trying to sucker everyone into paying too much.
franklinz

 

I totally agree about the price(s) of all aftermarket parts for this car. But I don't want to go off topic.

Oops! Looks like I already did. Damn!

 

Sorry guys..this ECU does not improve HP. It is for the redline only. (info per VQracer)