Jump to content
SAU Community

Recommended Posts

Joel,

I'd rather have something that's quick 0-100km/h..... 100-200km/h.....& 200km/h-0 :P No good being quick to 100 but nothing left after that.

I had an interesting dream the other night...... I was side by side with a 280+rwkw Commodore doing 80-90, we both accelerated & I didn't see tail lights x2.

With very grippy tyres (i.e. RE540's - D01J's) 250+rwkw can be used to full effect on the street (once heated) although very grippy tyres can be a tad costly for daily use.

Back to the topic......

A STOCK GTS25t using ELF Turbomax (+ advanced timing) & running slicks would NOT get into the low 13's. Of course it depends on your definition of stock? I take stock as meaning factory standard, no modified parts AT ALL apart from the slicks. You can advance the timing as your not replacing anything but that's about it. High 13’s but not low!

  • Replies 94
  • Created
  • Last Reply

Top Posters In This Topic

Matt - That Commodore, Have you heard Jaffa is having some work done to the VX?

280rwkw would be needed to sit level with the 33. :P

----------

All depends on the Budget. :)

0-100 or should I say 0-160 is fairly decent with a 200rwkw R32.

That will do me. :D

Originally posted by kabab

As sub zero have claimed they ran a 12.8 with slicks advanced timing elf and exhuast.

So your telling me an exhaust will give you 1 full second in the 1/4 ??

If an exhaust system is restrictive enough a 1 second improvement is very possible. Ask any of the SA guys @ a recent Tilbrook dyno day. SPOOLIN's modified GTS25t made 219rwkw & then after replacement of the *very* restrictive cat & cat back section followed up with 282rwkw. A gain of 63rwkw is more than enough to reduce a 1/4 time by a full second.

Bottom line is...... until someone goes out & runs 13.3 or less (what I consider low 13's) in a factory standard GTS25t using only slicks, high octane fuel & advanced timing then I'm not convinced.

Maybe my last comment will gee someone up to prove me wrong :D If so good on 'em.

Originally posted by -Joel-

I can't believe a 12.8 from ~120rwkw in a 1400kg car.

Then again that bloke with the LJ type torana was making around 120rwkw and that weighs in at 1300kg's, He ran some where in the 12's with a really hard launch.

Joel,

The LJ only ran that quick as it was geared (diff & box) for 0-400m only! It was/is flat out doing much over 185km/h. Your car would manage a 12.8 if you set the gearing up to suit 0-400m, in fact seeing as you like 0-160km/h & off the lights stuff why don't you? :D

Yeah I knew Jaffa was having H/C done a while back. Jaffa's LS1 suffered from the dreaded oil consumption :D So why not go for it in the rebuild. The 280+rwkw Commodore I dreamt about has H/C too (+ a 300kw eng to start with) I also dreamt about another successful 80km/h run vs. a 240+rwkw Commie Ute.

260rwkw 1500kg (car with driver)

300rwkw 1700kg (ditto)

I would've thought the above would be closely matched. I could be way off though?

I remember reading somewhere a kg removed is worth more than a hp gained.

Originally posted by whatsisname

Bottom line is...... until someone goes out & runs 13.3 or less (what I consider low 13's) in a factory standard GTS25t using only slicks, high octane fuel & advanced timing then I'm not convinced.  

Maybe my last comment will gee someone up to prove me wrong :D  If so good on 'em.

I sure hope so to ken doll :D i to belive 13.3 or less is a low 13, subzero have there is hope..

Originally posted by -Joel-

ermmmmm H/C?

ahh Also Remember I do like those Rolling runs Matt. :)

LOL.. Do you tell your Wife about these dreams?

Or does she wake you up and tell you to stop throwing your legs and arms around from changing gears? :D

H/C = Heads & Cam package

:lol: She hears all about the dreams I have (not that she's all that interested) Naa she doesn't cop any stray feet or hands, the roll cage & harnesses keep the limbs on my side of the bed :D

:lol: They must've got their wires crossed dude. It should've been, "Fabio..... the most beautiful man in the world" :)

Who do you know in the RAAF that knows me?

Yer but look at the tyres. And ask what RPM he launched at.

I run those cheapo Simex tyres and they grip so damn wheel where I find it really hard to spin second up out of a corner and first gear doesn't spin on launches.

Bridgestone B530's, older style Donuts, Baraum & Goodyear F1's all would do the above & all with the same width 225 50' 16.

Ahh Rob (or Roo) I should've guessed! His RX7 is getting some serious HP these days! (big turbo & all) Xtra grunt so he can get himself in trouble with the law "again" :P

REV's 13.4 is an awesome time! I know REV had his new S-AFC II fitted, be interesting to know if he'd tweaked the mixtures @ all?

Goes to show just how tough it would be to crack a low 13 with nothing more than slicks, high octane juice & a bit of timing advance. The biggest restriction would be the factory exhaust system. I still think low 13's in a standard GTS25t (with blah blah...) is very unlikely, but maaaaaaaybe possible?

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

    • Have you put an aftermarket oil pressure gauge on and verified your oil pressure?   Noise being on the block, on exhaust side, how high up the block does it seem to be? It could be the VCT system getting cranky, especially if it's mainly at idle, and when warm, as that'll be your lowest point for oil pressure. Could be showing that oil passages / VCT solenoid are blocking.
    • Well, hydraulic lifters will get noisy if they are dirty/fouled in some way, and exactly how that manifests will depend on exactly what schmutz is where. There is a procedure on here somewhere for dismantling and soaking/cleaning them. Replacing them with new is about 50% of the work and about 5% of the money!
    • Thanks for the reply @GTSBoy this is is a hydraulic lifter engine. Yea right i did not realise the lifters were supposed to be compressible while installed. I could push them down but i had to lean almost my while body weight on them.  I have never heard of a lifter/ lifters ticking only at hot idle and getting worse the hotter it gets. I have owned a few jdm cars with noisy lifters. This noise is slightly more subtle, it is more of a sharp gentle metalic tic than the solid and more loud tapping I've heard on lifters. I have used a metal rod, alloy tube, hose and stethoscope and could not find the source of the tick. But it appears to be loudest on the actual engine block behind the exhaust cam gear and next to the oil filter. I had mate (40 year old mechanic) go over it with me and he couldn't find it either..  Could it be a cam seal issue of some sort?  Cheers  
    • This seems problematic and unlikely at the same time. Vanilla RB2Xs have hydraulic lifters. They do have "zero" clearance, but only when running with oil pressure inside them. When not running, you should be able to compress them and obtain heaps of clearance. RB26s and Neos have solid lifters. They should have ~0.3mm and ~0.5mm on the inlet and exhaust respectively. If they have zero clearance then bad things are happening. With nothing else being wrong, it would mean that the valves would be held slightly (ever so slightly) open when they are supposed to be closed and it should have all sorts of problems when running, caused by leakage in/out through the valves. Or, zero clearance can indicate severe valve seat recession. None of it is good. Have you used a piece of hose as a stethoscope to try to localise the noise?  
×
×
  • Create New...