Jump to content
SAU Community

Recommended Posts

Hey I've done a little searching on the matter but haven't been able to find what I'm looking for. Anyway, my GTR is slow off the line, what sort of things do I need to add/change to give it a little more take off without having to dial up a heap of revs.

Link to comment
https://www.sau.com.au/forums/topic/206463-gtr-off-the-line/
Share on other sites

Although that is fun, its not so good on the street. The car just feels heavy off the line, should I just assume that because of the gtr's weight and the 4wd that it will always be heavy, or can this be helped in some way, like with a better flowing exhaust or something like that.

i got a lightened flywheel when i did my clutch and the ease in takeup at low revs was very noticable especially for normal day driving. it was a completely different car to drive. not sure if this what your after or if it is suited to you

wow thats interesting...I was always under the impression that lightened flywheels only helped in the higher revs..Thats the second person who reported better low end torque from the lightened flyweel mod

lighten flywheels help alot in engine response.

I know TODA do a really good flywheel...they come in many specs from mild street to outright race...So response has improved ...howabout low end pull...like take off without the big revs...better by a noticable amount right ?

Hey I've done a little searching on the matter but haven't been able to find what I'm looking for. Anyway, my GTR is slow off the line, what sort of things do I need to add/change to give it a little more take off without having to dial up a heap of revs.

GTR's will get that. The car is alittle heavy for what it is OR can be a bit lighter. Basicaly you feel the car getting "bogged".

Getting a good launch = rev the car to about 4000rpm + to get the turbos spolling and engage the clutch.

Lightweighted flywheel will help alot and twin clutch plate but I will go single Extra heavy duty.

you dont have to launch them hard to get off the line quicker, with a heavy duty single u should be able to bring it up to like 3k and then just ride it a bit off the line. Not as harsh on the various components that way compared with like an 8k dump and still reasonably swift... any1 else agree?

its kinda feeling where with the old flywheel when you just engage it bogs and doesnt want to go but with the lightened flywheel it wants to go....your expecting some lag but its just not there anymore. all normal street, carpark driving. maybe its the combination of the cushion button engaging better? mind you i did get adjustable exhaust cam and a light tune but the car is rediculously more responsive than before.

My experience with a lightened flywheel suggests it will rev faster but bog down more. I had a 240Z with a 8lb flywheel and it would rev so fast but you had to really slip the clutch to get moving. And a 240Z only weighs about 2/3 what the skyline does, of course without as much power. A lightened flywheel doesn't have as much momentum built up on the revs so there is less to transfer to the drivetrain when you want to get moving. Once moving you will feel the difference in acceleration.

I'm really curious on this too. The latest HPI Skyline special has an article on going 11 sec 1/4. It says to take your GTR to the rev limiter and hold it there, count to five and dump the clutch. Sounds like a drivetrain failure wanting to happen to me.

So do most folks here launch between 4-6 k revs? How much difference does it make on your 60 foot times if you really launch hard?

Keenly interested too. thx.

Edited by Pezhead

^^4000RPM is quite a bit.

1st time I was gettting use to my HKS twin plate, I accidentaly revved it and launched at 4000RPM and I was pushed back in my seat and cought up to the car which was about a car length ahead of me.

I was like "WTF! Geez! What the Hell! Then got use to it. LOL!

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • The German place in Cabramatta was rock solid, fresh pretzel cooked to order back then. Then it went all quiet, after all the poker machines were removed, then I believe it closed for good. I did drive past the other week and noticed outdoor lighting a big screen, but no idea what is there now.  
    • Yeah I suspect even if you hold airmass per cycle/cylinder constant if you get too far away from stock you're still going to have problems running the factory tune within the bounds of the factory load scale. Cams, different displacement/rod ratio, etc. I'm just lucky that the GTIII-SS with wastegate boost + CA compliance cats is pretty much equivalent to stock turbos. When I have actual space I can finally get it tuned and modify the fuel system for flex fuel to 100% handle any detonation concerns when cranking the boost to whatever those dinky turbos can put out.
    • I would say no, why, because my daughter, who also lives in Goulburn, hasn't recommended us going there Pity, as we miss all the German joints around in Sydney, actually, the restaurants are the only thing I really miss about Sydney, and a special mention to Ishibanboshi at Bondi Junction, their Kara-age Don is heart cloggingly deliciousness (always added a special boiled egg...or 2) 😋 
    • Does that German restaurant still exist in the old place out the NW end of Goulburn? When I say "out the NW end of"...I am really being vague. It was 1997 when I was last there, and the only point of reference I can recall is that it was on the opposite side of the main drag from the big merino. And when I say "opposite side of the main drag", I don't mean "on the main drag". It was either a couple of streets back from there, or might have even been out in the sticks a bit further. Was an old farm building or mill or somesuch. And when I say "the big merino" I might actually be thinking of a completely different part of town, because I just looked on maps and the big bugger is not where I remembered him to be! The food was good, consisting largely of various German mystery-meat sausage/loaf things and kartofflen.
    • So while the second sentence is completely correct and the whole point of the conversation, the first sentence bears consideration. If this bloke is just hoping to throw big turbos on and drive it around, because there are no helpful facilities at all in his tropical paradise** then he likely has zero chance of even knowing what the TP is on the last column in the stock maps, let alone know whether the ECU is operating anywhere near it or past it. So the point is very very moot. And, per what I said before, at stock boost on those turbos, you may well be off the end of the map. **I'm just back from Vanuatu, so I know exactly what small Pacific nations can be like wrt paradise without requisite facilities. But it's not even that simple. I put a high flow on my car and had to drive it around without a proper tune because of the lack of opportunity*** to put the bigger AFM and injectors into it to allow it to be tuned. I had to turn the boost down to less than I had before, and back off the boost controller's ramp, because it was exploring parts of the map that it didn't drive in before, and really couldn't access for tuning on the dyno either, and so was pinging. It was still well within the last column, because when I first**** set up the Nistune on the Neo I rescaled all axes of the maps to give some more space to explore. ***Family dyno was broken ****This was 13 years ago, and the TIM thing wasn't a thing then and so TP would definitely grow when pushing past the stock tune's limits.
×
×
  • Create New...