Kangaroo Impreza

[hundleydavid]

Hi All

Just bought back my old 2001 PPP impreza, to use as a track day car. The guy since has put on a blitz timer, and dump valve. Its still a quick car, but now, when i really drive it to the 3/3 rev range,i get a hesitant 1-2secs, almost like the turbo has cut out etc. Never did this before, could it be anything to do with the timer etc?

Cheers

[tuttle]

Almost deffo not the timer, timers are just glorified alarm clocks. Possibly the dump valve depending on type etc but for my money it'll be in the region of a scooby map type thang, erm... In my humble opinion I think.
All the best.

Edited by tuttle on Sunday 15th October 17:43

[hundleydavid]

tuttle said:

Deffo not the timer, timers are just glorified alarm clocks. Possibly the dump valve depending on type etc but for my money it is a scooby map type thang, erm... I think.
All the best.

Thanks.. to be honest, i just find the dump valve a bit of a pain, does not seemed to have done anything to the performance, except for now it makes a stupid noise..

[tuttle]

Yes that's about it for a dumper, also IMHO, don't know about scoobies but a recirculating type works real well in the Niss RB25DET engines- stealthier too

[DocJock]

Yep, get a recirc put back on asap.

Lots of possibilities, fuel cut, boost solenoid.....

I would pop over to www.22b.com and ask there.
They have a huge knowledge base for technical advice.

Edited by DocJock on Sunday 15th October 18:46

[geoff82]

Imprezas don't deal very well with dump valves and they cause excessive wear to the turbo if i recall correctly. The kangaroo thing could be a number of things, its happened to me before because the garage overfilled it with oil.

Try scoobynet as well, there's a fairly good pool of knowledge there even if there's a few too many max power types lurking.

[r5gttgaz]

Does it have a MAF? It could be the dump valve pissing it off.