Project - S13 Awesomeness

RB25SX wrote:

Shane's GT35R has a .82 A/R T3, wich will give it more lag, .63 A/R will give u what u want. I had a T3 .63 A/R on a T66 on RB25, reached 0.7 bar at 3700 rpm, wich it was running at the time (265kw), GT35R has a better spool up, and smaller (T61 size) wheel.
As per dyno print, the lower flat torque curve was with T66 T3 .63 A/R.(RB25) Gave a very nice broad torque curve, very little lag for the size of the turbo. (that was the nicest turbo combo i ever had on a RB25 😀 )

Looks like GT35 with a 0.63 is the way to go. What size wastegate were you riunning to keep the boost under 1bar?

On the RB25, 50mm wastegate, on the RB30, 60mm. Had a 38mm turbonetics on first, but boost would creep very bad towards the top end.

@RB25SX, what rpm do you think the GT35 with AR63 housing could reach 1bar?? And when in boost what lag would you have when changing gears??

Gary57 wrote:

@RB25SX, what rpm do you think the GT35 with AR63 housing could reach 1bar?? And when in boost what lag would you have when changing gears??

Cant say what rpm, but my experience with differant turbos, i think that will give u the best responce and the most in reserve for future upgrades. U should have almost no lag between gears with that turbo. Garret B/B turbo's are very good, spool fast and make great power.
I have learnt with turbo's to decide what u want, pick the turbo that will work best........ and then buy one size bigger. If u want 450hp, a GT3071R is great (rated to 480hp) but u are close to the max of the turbo. GT3582R (rated 600hp) with the right size exh housing might give u 200-500 rpm more lag, at the expence of 120hp extra. Price differance is so little that if u buy a new Garret turbo, make sure u buy with a little bit in reserve. Just my 2c 😉

13-15k yoh thats alot
i got a mr turbo t72 sells for R5500 i think

so is it really worth that 10k extra

i mean you could sure get a mr turbo t66 for that Rb and still have change for new injectors

RBSX wrote:

13-15k yoh thats alot
i mean you could sure get a mr turbo t66 for that Rb and still have change for new injectors

I also have a mrturbo T66 B/B on my RB30DET, makes good power, but had to send the first one back for a rebuild, now much better.Come std with a T4 .68 A/R, wich will give u too much lag on a RB25. Just dont know how it will last in the long term. But @ R7500, is half the price of a garrett B/B. If i had R15K+ for a turbo, i would buy a GT4088R. T61 will work almost as well as GT35R.

So update: Bought some goodies for the car to make it work

Turbo
Mani
Wastegate
Injectors
W/M
EBC

rat wrote:

RBSX wrote:

this just got very interesting, i was hoping you would change the turbo
so i can have an even better match to my setup

gona be one sweet RB25 setup

Whats those Gt3/35 go for

my power has just gone up R13500 - R15500

Where did you buy the turbo ?
Did it come with Vasaline ? 😂 😂

Where did you buy the turbo ?

Rezlo

Did it come with Vasaline

will buy some so I can hand it out to the person next to me at the traffic lights

rat wrote:

will buy some so I can hand it out to the person next to me at the traffic lights

sis man

rat wrote:

Where did you buy the turbo ?

Rezlo

Did it come with Vasaline

will buy some so I can hand it out to the person next to me at the traffic lights

Oh ok, so they dont hurt you.. 😂

lets hope nothing else goes wrong, end of march is 8 montjs

cant wait to drag RBSX with a rbsx and do some drifting

i actually recorded a video of ur engines first start, cant post it cos photobucket is being mean.

that things gona eat me
😮 😮

ReeceZ wrote:

i actually recorded a video of ur engines first start, cant post it cos photobucket is being mean.

Post to youtube! photobucket is lame 🙂

Want to hear it 8)

i was thinkin it sounds like an angry diesel or a tractor 😂

http://www.youtube.com/watch?v=cEubKlwDfuQ

ReeceZ wrote:

i was thinkin it sounds like an angry diesel or a tractor 😂

was it firing on all 6?

That is what a 6cylinder sounds like when firing on 4... 😂

it sounded much better the next day when you phoned me