How much boost?
- Thread starter evil003
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JAP63
E III Recaro Pilot
MAD-racer said:
Exactly what i was about to say.
Dont go over a bar, why would u want to anyway, theyre quick on 10 psi. The motor has high compression and good cams, they make really good power..if you want to run up over a bar, i think at least youd want a reg, and a pump, then a good tune, and maybe an SAFC2 or a chip.
I am not sure that the comp ratio is that high, I have read alot of different info about the comp ratio. I would certainly get it tuned and get the tuner to do the boost adjustments, that way they can make sure you arent going to blow the sucker up.
Dean
Member
9.0:1 is the evo 3 comp ratio.
and yes around the 15psi mark, but i'd get it dynoed if you intend on playing with boost
and yes around the 15psi mark, but i'd get it dynoed if you intend on playing with boost
CLuTZ
Diamonds are forever....
Dean said:
+1. Check the AFR's and play with the CAS until you find a point where the car reaches its limit, then back it off a little.
VR-4Squid
Well-Known Member
Don't play with the cas! that sets the whole timing map out throughout the entire rev/load range and basically buggers your fuel economy and driveability!
What you just said is right but i still ask my self why not play with the cas?
Im asking this in general, not just refering to his car/engine, but lets just say, considering that he wants to raise boost, isn it better to pull out few degrees throughout the entire rev/load range and loose a bit of economy but at least be safe everywhere (especialy when under load) rather then leaving it as is to keep the economy and having a risk of engine pinging when under load...
Im asking this in general, not just refering to his car/engine, but lets just say, considering that he wants to raise boost, isn it better to pull out few degrees throughout the entire rev/load range and loose a bit of economy but at least be safe everywhere (especialy when under load) rather then leaving it as is to keep the economy and having a risk of engine pinging when under load...
JAP63
E III Recaro Pilot
Adjusting the CAS if done properly should be fine..al your doing is setting your whole map forward or backward a few degrees right?
As long as you make allowances for it, (good fuel, cool air) it should work.
As long as you make allowances for it, (good fuel, cool air) it should work.
VR-4Squid
Well-Known Member
GSR said:
Most of the time on the road is spent off-boost and at low throttle openings, (try logging the tps over your favourite twisty road - you'll be suprised) - so it seems silly to improve the outright power at the expense of the rest of the map when that is where you spend the most time.
Especially when the factory ecu can be chipped and reprogrammed to suit.
CLuTZ
Diamonds are forever....
VR-4Squid said:
Unless you get the car tuned on the fly, a chipped ECU can be useless!
I've had good results with advancing the timing a few degrees- you just gotta make sure that you don't over do it!
JAP63
E III Recaro Pilot
VR-4Squid said:
Thats a fair enough point you make.
CLuTZ
Diamonds are forever....
Mitsubishi maps are rich as hell- off boost my old car ran SWEET, and was serioulsy quick, ran 111mph with a 2.5 60ft
