zakscooby1

iTrader: (8)

hi there every1...i have a version 3 sti and have the following mods on
full system blitz nur spec exhaust
front mount intercooler
vf35 turbo
walbro 255 fuel pump
adjustable fuel pressure regulator

now the problem i have is its not performing like i want it to

not sure if all of them are like tht but it hasnt got a proper pull to it like my wrx did

i had a vf23 turbo on n went for a bigger one...so had tht fitted and went to test it n not a single bit different

isit because it needs a remap?

can any 1 help? thanks

banny sti

iTrader: (68)

Yes after a change of turbo and fmic, I would defo suggest a remap and not to drive on boost till you do get one as you are risking an engine failure.

Banny

zakscooby1

iTrader: (8)

o yh fogot to mention i blew the engine with these mods so its had a fresh rebuild and i havnt boosted it at all and wont til i get a remap...cheers banny

harvey

iTrader: (48)

You will blow this engine too if you have changed turbos and have not had a remap.
The OE ECU cannot be remapped so you need an aftermarket ECU, perhaps a second hand Apexi is a cheap solution or a new Simtek for around £800 plus VAT or look at the ESL system.

zakscooby1

iTrader: (8)

would it blow even tho i dont boost at all? yh i defo need to get it mapped did want the simtek but it wud burn a hole in my pocket this period of time as im getin another run around car lol...how much isit to get a apexi fc with commander mapped if i got 1 second hand?

banny sti

iTrader: (68)

Simon (JGM) charges £250 (just checked his website) + vat to map a customers apexi.

http://www.jollygreenmonster.com/

Banny

zakscooby1

iTrader: (8)

rather pay bit extra and get a brand new simtek with pops and bangs

stevie1982

iTrader: (16)

if i were you i would not drive it, the map will be all wrong. the more you drive it he more damged and higher chance of failure

park it up and get it booked in for a map

zakscooby1

iTrader: (8)

iv hardly drove it since the rebuild....im getting it booked asap and have got my yaris as a ruin around lol cheers for the advice tho

harvey

iTrader: (48)

Do you have a boost guage. Even off boost it may be fueling way outside of acceptable limits so anything other than very little usage and you could damage the engine to the extent that it will never perform well at least and perhaps worse.

zakscooby1

iTrader: (8)

yh i have a boost gauge and it boosted 0.8 before i blew it and now the fuel pressure is set at 3.5 bar (standard pressure) im going to ring simon jgm to get my car in for a simtek soon

harvey

iTrader: (48)

3.5 bar is way above standard pressure so you are probably running rich. Possibly better than running weak but you run the risk of bore wash. At the very least get your AFRs checked, on the road by someone with a wideband 02 LM-1, LM-2 or whatever.

zakscooby1

iTrader: (8)

sorry my mistake im running 3bar pressure...hopefully jgm should sort it and make it run perfect