Opinions on Dump Pipes for a GTR???

[lazza]

Hi all,

Just wondering whether anyone has done a before and after comparison when they installed aftermarket dump pipes on there GTR?

My tubs are coming off (blown) so labour is minimal, and the cost of dumps will probably be around $800.

Is this money well spent or money wasted? I intend to intall N1 turbos and power levels will be under say 280rwkw after mods are complete.

Thanks for your opinions.

Lawrence

[Scooby]

Hi all,

Just wondering whether anyone has done a before and after comparison when they installed aftermarket dump pipes on there GTR?

My tubs are coming off (blown) so labour is minimal, and the cost of dumps will probably be around $800.

Is this money well spent or money wasted? I intend to intall N1 turbos and power levels will be under say 280rwkw after mods are complete.

Thanks for your opinions.

Lawrence

Hi Lawrence.

Try doing a search, this question was asked some time ago and it resulted in a longish thread, there are also related threads including one that has an article by a Garrett angineer on design. Unfortunately no evidence of anyone having done comparative dyno testing, some suggest that there is little if any gain to be had. I'd say if you are doing the turbos anyway go for it. CES in Queensland make nice stuff and can give you a dyno figure for improvement using their pipes but they haven't compared their stuff to anything else.

[lazza]

Yeah, I did a search and found a recent thread regarding RB25DET GTST dumps, but thought there could be different gains on a GTR, anyone???

Lawrence