Project 12sec R33 GTST Daily Driver

[rev210]

As long as the dunp pipe is not cast iron, you can wrap it. Make sure you do it evenly and pre-spray it with exhaust paint let set and then wrap. Prevents issues with corrosion.

[MrSkylineRB30ET]

Try this out, rip off the AFM gauses, they arent gunna stop anything your filter doesnt stop, gauge pressure drops before the filter, after and just after the turbo.

[s13viper]

BYBY,

I am taking 200+rwkw to be about 310HP at the flywheel. I dont think the stock turbo can move this much air at 1bar. At least why would you go a 2530 for a power increase when they are rated at about 310/20 HP?

they are rated to that but we all know that a HKS2530 will support 250rwkw @ 1.5bar..HKS underrate there turbo's a fair bit

[Abo Bob]

I don't think we do all know that. More like 220-230 with boost dropping late in the rev range on an RB25.

[s13viper]

how do they make 250rwkw (backed up by a 11 sec pass) on a RB20 @ 1.5bar then?

if they can do it on a RB20, it can be done with a Rb25

it was 247rwkw but hey, whos counting

the stock R33 turbo will flow 200rwkw @ 1bar

[siksII]

I don't think we do all know that.  More like 220-230 with boost dropping late in the rev range on an RB25.

i agree

[Abo Bob]

how do they make 250rwkw (backed up by a 11 sec pass) on a RB20 @ 1.5bar then?

if they can do it on a RB20, it can be done with a Rb25

it was 247rwkw but hey, whos counting

the stock R33 turbo will flow 200rwkw @ 1bar

Moving into less known territory here but I think because the RB20 requires less air. I'm guessing it would have to have less torque too but it's probably in a lighter car with who knows what other mods for an 11 second pass.

People here have tried it on an RB25 and despite others telling them that they can get 250 they never can. There is all sorts of talk about boost controllers and waste gates actuators but in the end it doesn't seem to be able to push enough air into the RB25.

I'm sure a stock turbo can push 200 rwkw at 1 bar, in fact, probably at a little under one bar.

[rev210]

they are rated to that but we all know that a HKS2530 will support 250rwkw @ 1.5bar..HKS underrate there turbo's a fair bit

I think I have been trying in the to say that (in the distant past) 200rwkw at 1 bar translates to 300hp at the motor or less. My speculation was about actual engine power. dyno readings are to me like peices of toilet paper when used for inane comparisons between cars. The 1/4 mile time for the Rb20 powered thingo is more interesting. I'd be more swayed to buying a turbo based on what it 'does' in the real world when setup correctly.

[SL33KGTS]

Hey guys.... Im bulding a sub 11 sec car myself and noticed a few of you going for the davis craig thermos.... if you are looking for cheaper alternative, go for a 2nd hand vn-vs v6 thermo... i hooked mine up to the sensor on the manifold. The clutch fan uses more energy than you wood believe... and worse it sounds terrible when cold

[rev210]

SL33KGTS,

Which sensor on the manifold do you mean? and how did you hook it up?

[|PRESA|]

Hi sorry I dont know if this has been mentioned yet but can you guys provide a DIY style info guide to removing fluid clutch style engine fan and how to replace with a thermo fan.

I'd like to give this a go if you guys say it produces more power but I havent got a clue how,

[rev210]

PRESA,

It doens't make more power but, rather reduces inertia. Makes the car accelerate faster anyway so who cares?

It's best if you remove the radiator. Once you have done that everthing is just an unbolt and bolt on affair. I'm sure if you have some experience working on your cars then it's too easy. If not a step by step is not going to help if you can't work out whats in front of you.

There are 4 bolts holding the cluth fan on. undo them whilst the fan belt is still on (holds the pulley in place).

With the radiator out this will be very easy.

line up the thermo fan on the radiator so as to retain the fan shroud (you must keep this to gain the maximum cooling effect).

Wire up the the connections needed and the relay ready for the thermo fan.

bolt it back up and fill with coolant , remember to bleed the air out.

test.

[Munna]

they are rated to that but we all know that a HKS2530 will support 250rwkw @ 1.5bar..HKS underrate there turbo's a fair bit

I think I have been trying in the to say that (in the distant past) 200rwkw at 1 bar translates to 300hp at the motor or less. My speculation was about actual engine power. dyno readings are to me like peices of toilet paper when used for inane comparisons between cars. The 1/4 mile time for the Rb20 powered thingo is more interesting. I'd be more swayed to buying a turbo based on what it 'does' in the real world when setup correctly.

<{POST_SNAPBACK}>

my opinion

200rwkw would be more than 300 engine hp.

300hp = 225kw. You would loose more than 25kw throught the drive train.

eg

standard r33 gtst engine power 187 and and 135rwkw rough estimation.Thats 52 KW. Id say 200rwkw would be closer to 250kw+ at the engine which is arround 335hp.

cheers

[fEkuaR]

Did this car ever run a 12 with this setup? I have read through this hole thread and unless i missed something i didnt see any results?

[rev210]

Sold it before I got to the track again to try. The last run it ever did was 13.3@106mph and a 2.3 60ft (205 tyres), so in a nut shell with wider rear tyres a high 12 would have been pretty easy, the 60ft just needed to be about 2.1.

There are now quite a few r33's with stock turbo's that can lay claim to the 12 second title. I'm not sure if any of them did it with the stock intercooler though?

[fEkuaR]

Thats fantastic work all the same. Im dissapointed to see that you never hit that 12 yourself though i would have held onto it untill i did after all your work. All the same the thread was a great read

[rev210]

I've got a GTR work car now that is more fun to drive, I had to sell the GTST to get the GTR simple logic. The GTR will bolt in a mid 11 pretty easy.

I also had fitted a nitrous kit just before selling it and would have liked to have made a few passes with that on as well. 2rismo ended up with my old nitrous kit parts and after he added a few thing to it he got a stock turbo'd GTST into the 11's with a shot of the gas. Thats a good effort in anyones books.