S14 With Neo Rb25 Drift Car.

[Simon-S14]

3rd gear peels in mine..as does 4th see my in car footage

got my GTX today

http://simonmichelmore.wordpress.com/2011/06/01/gtx3076r-is-in-my-hands/

[Rolls]

very interested to see the results

also how much did you pay for your NEO motor?

Edited June 1, 2011 by Rolls

[geraus]

hmmm must be something wrong with mine! ehhehe , what clutch are you using and how much does your rev's rev out to?

My motor is a un-opened rb25det doing 250kws on 17psi with a highflow turbo . Do you think if i tell my tuner to increase my revs long? would it effect my motor more?

PS - nice turbo !

Edited June 1, 2011 by geraus

[DJRIFT]

hmmm must be something wrong with mine! ehhehe , what clutch are you using and how much does your rev's rev out to?

My motor is a un-opened rb25det doing 250kws on 17psi with a highflow turbo . Do you think if i tell my tuner to increase my revs long? would it effect my motor more?

PS - nice turbo !

a few things to note. simon runs a r34 neo rb25. they are a far more advanced engine than the r33 rb25.

simons car has nearly 400rwkw not 250 but there is a fair bit of sicence behind a decent turbo and the flow caracheristics of a turbo and would say that even if you squized more power out of the turbo you have it still wont give you the same results as a gt series garrett.

also its not the power as that is just a peak measurment. its all the area under the power curve that counts.

it can also be alignment settings, tyre type and Key note tyre pressures that make tyres grip different.

[SimonR32]

a few things to note. simon runs a r34 neo rb25. they are a far more advanced engine than the r33 rb25.

simons car has nearly 400rwkw not 250 but there is a fair bit of sicence behind a decent turbo and the flow caracheristics of a turbo and would say that even if you squized more power out of the turbo you have it still wont give you the same results as a gt series garrett.

also its not the power as that is just a peak measurment. its all the area under the power curve that counts.

it can also be alignment settings, tyre type and Key note tyre pressures that make tyres grip different.

1/4 past f**k all difference between a R33 RB25 and NEO in real life performace when they are tuned to this kind of power...

GT Garrett's are also not the be all and end all of turbos, my cheapy Kinugawa turbo does the job just as well as a 3076R

I think you will find that the difference would be outright power (as you have suggested 400rwkw is not 250rwkw) and also weight will have a huge factor. A stripped S14 compared to a street R33 would be about 400kg difference at a guess and that is MASSIVE

Edited June 1, 2011 by SimonR32

[Rolls]

1/4 past f**k all difference between a R33 RB25 and NEO in real life performace when they are tuned to this kind of power...

I've had quite a few tuners tell me that there is quite a difference and that it is basically the same as an rb26 head. You sure there isn't some truth in this?

[34GeeTeeTee]

I've had quite a few tuners tell me that there is quite a difference and that it is basically the same as an rb26 head. You sure there isn't some truth in this?

I have also been told they respond a lot better to modifications that the old RB25 due to the head setup etc... I think the rods are stronger too? But as i have an R34 i have a NEO if i like it or not

As for the high flow setup, i decided to ditch my high flow as it was laggy and overall not that impressive... I am looking forward to the 3037 conversion for the response and power...

REALLY looking forward to the back to back test on the GTX vs the GT!!!

[SimonR32]

I've had quite a few tuners tell me that there is quite a difference and that it is basically the same as an rb26 head. You sure there isn't some truth in this?

No doubt they are a better design than a R33 RB25 head. They have solid lifters and better cams etc

What I said was the differences do not make a huge difference in terms of relative performance at this kind of power level!

[Rolls]

What I said was the differences do not make a huge difference in terms of relative performance at this kind of power level!

That was sort of what I was getting at, how much of a difference of peak power do the different heads produce in certain power ranges?

[boostn0199]

<br>hmmm must be something wrong with mine! ehhehe , what clutch are you using and how much does your rev's rev out to?<br><br>My motor is a un-opened rb25det doing 250kws on 17psi with a highflow turbo . Do you think if i tell my tuner to increase my revs long? would it effect my motor more?<br><br><br>PS - nice turbo !<br>

<br><br>Just hope on e85 itll pump you close to 300 and pump the torque up aswell ever since I went on the stuff and at the last drift day third goes no worries and alot safer. 

[DJRIFT]

No doubt they are a better design than a R33 RB25 head. They have solid lifters and better cams etc

What I said was the differences do not make a huge difference in terms of relative performance at this kind of power level!

i did wonder if id get some resistance to my comments. whist yes at the same power lever there is f all difference but the fact they have solid lifters and better designe through out makes them a different motor.

i am also yet to see a good example of a stock r33 rb20 making 400rwkw. the few examples i know of have only been made with massive turbos with bad responce.

i also know that a garrett is far from the best but the actual flow differences between a hiflow and a gt series is light years in my opinion. ive had real life experiances with both.

[SimonR32]

i am also yet to see a good example of a stock r33 rb20 making 400rwkw. the few examples i know of have only been made with massive turbos with bad responce.

What about my R33 RB25 (with a dead stock motor, stock cams etc)???

Edited June 1, 2011 by SimonR32

[aleks]

nope... runs fine so why bother lol

You said it didn't feel down on power then you comp tested it and it had 90psi, my engine was abit low on compression as well so just curious.

[Simon-S14]

comp test isnt 100% accurate and i did also say i used the workshop comp tester which has been known to read lower. either way.. it goes hard. i have no issues with the motor so far. BTW what are the CP's you have for sale for the neo?

as for neo/non neo differences.. as simonr32 said theres not much in it when you start running large boost with a decent turbo capeable of flowing it. both will do the job. the neo's are just a little bit better with their solid lifters and GTR rods.

Geraus: the reason yours doesnt make the post is because of the turbo.. a highflow is a basic upgrade and perfect for the street. but no good for anything over 280 ish rwkw. anything more then that is GT30 territory.

[Rolls]

as for neo/non neo differences.. as simonr32 said theres not much in it when you start running large boost with a decent turbo capeable of flowing it. both will do the job. the neo's are just a little bit better with their solid lifters and GTR rods.

at lower boost around 16-18 with lower power levels around 250ish do you think there would be much difference then?

[DJRIFT]

What about my R33 RB25 (with a dead stock motor, stock cams etc)???

like i said ive never seen any good examples.

jokes. well no i have seen it.

Edited June 1, 2011 by DJRIFT

[Rolls]

jokes. well no i have seen it.

what does that mean lol

[DJRIFT]

what does that mean lol

ment to be now. well now i have seen it.

[SimonR32]

like i said ive never seen any good examples.

jokes. well no i have seen it.

haha, had me wound up there for a second

[Simon-S14]

at lower boost around 16-18 with lower power levels around 250ish do you think there would be much difference then?

not heaps... from all the work ive done on neo's and non neo's... the neo's prove to have more punch in the midrange.

EG: a neo with a HKS GTRS vrs a non neo with same turbo kit.. the neo has a bit more torque and earlier on in the midrange then the non neo. i would assume this is the flow charactoristics of the head