What is needed for 11 sec 1/4

[HKSgtst]

i was wondering the other day ..

in Japan, does all the 8-9second GTRs retain their std 4wd or take out the front drive shaft to run 2wd ?

[T0nyGTSt]

in Japan, does all the 8-9second GTRs retain their std 4wd or take out the front drive shaft to run 2wd ?

You don't need to go to Japan. From memory Keir Wilson and John Munro use torque splitters to work out how much they want to go front and back.

T.

[blx]

BENM - Reason is as stated in my above post... I am not a fan of 4WD, not fun. And the fact that the RB26 have a reputation of being tougher and better to tune...

[benm]

You can pickup an R33 GTS-t for $18k, you can also pickup an RB26DETT for about $7k so thats $25k and you got a RWD Skyline with the power of a GTR. A decent condition R33 GTR = $40k, you see what i'm talking about ? ?

[Steve]

With all the support systems though, it will still cost. If you are chasing around 300rwkw it can be done with an RB25 - changing the engine will only be an added cost, as you will still need all the associated support systems.

If you do go down the replace engine line though, just to go a little out of left field, RIPS is running 10s in a R32 GTS4 which hasnt been hugely modified, but has a 3L conversion. He sells rebuilt 3L conversions for around 3.5K landed in aust (not sure about duty and gst), but that is a whole lot cheaper than an RB26, and will easily support over 300rwkw with much better torque due to its stoke and the extra capacity.

[Roy]

If your going to go down the replace motor path, (i dont think its required, RB25DET is capable of those times)... then why not get an R32.

Cheaper initial price, slightly less weight, and has same engine options, only you will need to bin the gearbox as well.

[GTRgeoff]

I think the general consensus here is each engine/car combo is more than capable on the std internals with good support systems and good tuning, including suspension.

You can make power without all that, but be prepared to wear a bill if you go beyond the threshold and get detonation. It only takes that one time, then it is worth the good rebuild but you will still need the support systems and tuning.

[Guest INASNT]

None of those were in Perth though, in fact I can't find any decent radial tyre times from Perth.  Must be the track.

LOL!!

I hear ya

[WLD747]

Well a 11Sec is my goal as well and is easily achieveable with stock internals. The secret to using stock internals is more fuel!.

Here is my plan of attack.

R33

RB25L Engine / RB30 Bottom End (adds more torque and better turbo spoolup)

Greddy or Custom Plenum

Z32 AFM with Intercooler Piping

Power FC

T04E HighFlow (A/R 0.60)

HKS Cams

Ogura Flywheel

Blitz BOV (High Rev Pressure Release)

6 x 550cc Injectors

040 Bosch Fuel Pump

BRK7E Spark Plugs (copper holds boost better than any plug on the market)

Some good clutch

After all these major mods you will be in the low 12 / high 11 sec bracket.

hope this heaps, maybe ive missed something but feel free to add to the list.

cheers

ak

[Guest INASNT]

0.60 rear or front housing is too small for high end power which you need for fast 1/4 times

[R31Nismoid]

i've run a 12.98... now not 11 i know, far from it.

But that was on street tyres... 225's with a 2.1 60ft.

A very poor suspenson setup, the R31 IRS is a shocker for drag racing the way i have it at the moment.

And the driver aint the best

Not making excuses, just saying that times can be better, anyways...

I'll bet that if i had Nitto's/slicks and suspension (suspension plays a goos part)

Then then my times would be fast approaching a low 12 run. That was with 203rwkw on 13psi (non standard turbo)

My 31 weighs in pretty much the same as a 33 does so weight is the same.

With approx 240rwkw i'm confident that on slicks it would come very close to high 11's.

I've also seen RB30et's in VL's... yes they do have a weight advantage compared to a 33.

With approx 220-230rwkw break consistent very high 11's with slicks.

But are you after HIGH 11's... or Mid-low 11's.

because mid-low 11's IMO, your talking a lot more $$$.

[Guest INASNT]

He said with street tyres, plus with slicks it puts more strain on th other drivline components, and makes breaking one very easy.

[R31Nismoid]

lol!

didnt read that...

but aint Nitto's classed as street?

or not... either way... it's not easy if the aint classed as streeters...

[meggala]

look at the specs of busters car it has run an 11.7 I think

td06 25 g plenum cams injetorts,cams, afm twin plate 2 way diff and its well tuned.

meggala

[DoughBoy]

The mph on Buster's car indicate it should do a 10 second pass. The 60 footer is a shocker.

[benm]

When was the last time you released 350rwkw to the rear wheels ?

[rev210]

Hi rev, Wilson did a 1.45 on Nittos, Munroe did a 1.48 and Lee did a 1.6.  I've got plenty more examples if you like.  None of those were in Perth though, in fact I can't find any decent radial tyre times from Perth.  Must be the track.

I think I might have been hasty in my generalisation. I just seem to see and hear of alot of rear wheel drive car owners unable to extract decent (for semi slick) 60ft's from the Nitto's considering how expensive they are compared to the other brands.

I've seen low 1.5's out of BFG's in rearwheel drive only cars with very modest power to weight ratio's ,unlike keir and munro's monsters , and fairly average suspension. For the money I still think the traditional BFG and Mickey T's offer the best bang for buck and overall performance (not sure if the nitto's last longer for road driving tho' so that might be a bonus).

[rev210]

As for quick times on radial tyres at perth's own Motorplex drag strip.... There are always a few street registered cars that run low/mid 8's on radials (sorry skyline fans they are all V8's). None of them use Nitto's.

[Sydneykid]

Hi rev, "There are always a few street registered cars that run low/mid 8's on radials "

What radials?

[blx]

Hey guys thanks for all the comments and info...

After a short think about it i am thinking if i was to go ahead i would be aiming at a more realistic time of mid to high 12's.

I really had no intention to replace the internals and money is of the esscence...

Thanks again