Gtr Modification

[lav]

i have standard rb26dett engine on gtr33 with bleed valve, power fc, adj cams, high flow 3 3/4' exhaust and just got a pair of -9's from Osaka Imports today for $1500

Just wondering what kW am i looking at once the turbo's and dump pipes are installed....

and how much without the dump pipes.....

been told that by installing dump pipes, it makes a difference....

need to know what other supporting minor mods can help to increase the power......

thanks guys

[NickR33]

what dump pipes are you referring to?

[KamikazeNinja34]

Short answer: put it on a dyno afterwards

[VSPECT]

-9s are bolt on turbos...n i dont think u need to modify the dump pipe (could be wrong)...but ya depending on the boost, i am sure you should be looking around 310rwkw/awkw....

[Ant97GTR]

have standard rb26dett engine

Your first concern should be reliability and power being well and truely second. Once all bolted together get a good tuner to sort out a reliable tune.

As for the dump pipe difference, I guess it depends which dumps you have bought - sure they can make a difference but by how much depends on how good they are.

[CR34M]

280AwKw would be safe, look upwards of 320AwKw but less reliable, depends how the car is tuned and where the power comes on....no point having 320 when your power is upward of 8000rpm for eg. 280-290 would be suffice with the set up and parts you have.

[lav]

280AwKw would be safe, look upwards of 320AwKw but less reliable, depends how the car is tuned and where the power comes on....no point having 320 when your power is upward of 8000rpm for eg. 280-290 would be suffice with the set up and parts you have.

Yeah, im looking around 300 mark atleast....will see once it go on the tune....

[Fullboost_Performance]

Had a similar setup on mine before i had the current setup built, was making 313kw on a safe tune...

[Fullboost_Performance]

I definately agree with Ant97GTR though, there is a big difference in making big power and making it and still keeping the reliability, take to a tuner who knows these cars inside out!

[lav]

I definately agree with Ant97GTR though, there is a big difference in making big power and making it and still keeping the reliability, take to a tuner who knows these cars inside out!

Where did you take yours to?

Many people told me that with the -9 on stock motor will be around 280 to 300 kW

I wonder how urs made 300+!!!

very concern and will like to know if you did anything else to yours....

[Fullboost_Performance]

Where did you take yours to?

Many people told me that with the -9 on stock motor will be around 280 to 300 kW

I wonder how urs made 300+!!!

very concern and will like to know if you did anything else to yours....

Mine had a built engine, head work, cams, cam gears, 4" exh from front pipe back.

I have seen same setups making 290, friend of mine in his R32 GTR is making 328 with more boost, was tuned from a place in NSW just before he bought it, so i would say a little more boost and head work makes the difference.

Simon from NT Performance Turbocharging in Footscray, they had built some pretty serious GTR's and GTS-T's thats why i took mine there, if your keen i can pass their number on and you can have a chat to them about what was done.

I dare say that yours with head work perhaps a slightly bigger exhaust would make more

[R31Nismoid]

factory motor vs built motor = not same.

lav - be happy with it as per your other thread

[VSPECT]

+1 with ash's comment....

[lav]

factory motor vs built motor = not same.

lav - be happy with it as per your other thread

thats true, built motor is not the same to stock....not gonna touch my motor till its fully f%$ked...