Hi people in need of some advise, my car is due in with duncan on 5th april.
I was doing finishing touchs to have it ready, i fitted the perrin 4 bar map sensor and the car ran like crap, is this down to the map sensor, i have fitted the old one back on but havent had time to start it up since but do i just take the sensor down with me and stick it on before the mapping and is it normal to make my car run like rubbish without a map.
Its a 04 sti blob eye any advise would be great 👍

 

Yep will run crap if not mapped in.
4bar map sensor might be overkill if you're not looking for BIG boost?
What turbo are you going to run?
What did the mapper Duncan suggest?

 

Spec so far but sure there is load i have missed spent a fortune so far


ej257 2.5 cdb done by alyn
bored honed and block faces skimmed to 99.75mm bore
14mm headstud conversion (rcm)
mahle 2618 forged pistons
rcm arrow rods
acl race series main and big end bearings
rcm oil pump
rcm mls 1.1mm headgaskets
all new seal ect

the heads are the 2.0 avcs heads reworked for the 2.5 block
heads skimmed
valves cleaned and lapped in
new stem seals
new cam seals
valve clearance adjusted
new cambelt
the engine was build by Williams competition engine

rcm headers
rcm uppipe
kakimoto straight thought exhaust
6 speed box
twin plate exedy clutch
fmic
walbro intank pump
swirl pot setup with bosch 044 external pump and fuel lab fpr, with braided lines.
850cc injectors
rcm cone filter
forced performance red turbo with perrin intake pipe
simtek ecu
defi gauges oil pressure, fuel pressure,boost. oil temp.
ks2 knock sensor

 

Sounds like it's not quite standard! Lovely
4 bar map sensor should fit in well

 

yes the 4bar map sensor unmapped will have it running like a pig. Make sure when fitting that the little rubber o-ring is well seated as I've seen a few that like to leak a little and give a duff reading.

Hopefully there's a nice set of rails to go with the braided lines and the FPR?

 

Will do i bought the 4 bar map sensor from perrin so will make sure all is fitted right.
Ill do it when down with duncan having it mapped. And does indeed has a set of cdf rails to go with the swirl Pot setup ��