Just a quick question for you guys out there. I have been reading alot of how people are running 12.* plus on the AFR with larger injectors in the 300+CC range. my question is why does the j-body run so lean even with a emanage or AFC? i know these are different cars and such but I have always tuned 300zx turbos and supras with 370CC and 400CC injectors to around 400 plus horses and nothing over 11.5 AFR. so what makes the cavaliers so hard to run at a good AFR?
the SAFC doesn't adjust your computer, it fools it. computer realizes what's going on, and compensates.
I was a retard, and now I'm permanently banned.
Your not honestely comparing 4 315cc injectors to 6 400cc injectors are you. Hmmm lets see, 4 315cc injectors = 1260cc, whereas 6 400cc injectors = 2400. With 2 extra cylinders and basically 2x the fuel, I don't see what confuses you.
2000 Z
i think he just doesn't see how we can't get a great AF ratio...
I was a retard, and now I'm permanently banned.
Burnout wrote: Your not honestely comparing 4 315cc injectors to 6 400cc injectors are you. Hmmm lets see, 4 315cc injectors = 1260cc, whereas 6 400cc injectors = 2400. With 2 extra cylinders and basically 2x the fuel, I don't see what confuses you.
that is untrue. just because the engines have 2 extra cylinders does not mean you have 2 times the fuel. The 2 extra cylinders do not feed fuel to the other 4 cylinders so that really has nothing to do with this.
I realise the AFC tricks the ECU as i have installed a bunch of them on vehicles and tuned them to run correctly. I would just like to know what makes the cavaliers so much more difficult.
What makes them difficult is that you cannot just turn the distributor to adjust ignition timing and since the motors (2.2 OHV and 2.4L) were not really designed for boost they have relatively high compression ratios. I'm not sure which variations of the 300zx or supra you're talking about, but both of those are available with factory turbos, right?
Also, I'm not sure on the type of air monitoring the supras or 300zx's use, but cavys use a MAP while a lot of foreign cars use MAF... I think.
Tons of little factors add up. Ask SunCavi about tuning a high compression turbo motor...he'll tell you how much fun it was.
What i thinkyou guys really need is a map ECU we use them on supras and they are i think what you guys are missing... this will give you the finer control over the rest of the ECU
lifeisboost wrote:What i thinkyou guys really need is a map ECU we use them on supras and they are i think what you guys are missing... this will give you the finer control over the rest of the ECU
No sh1t tonto....that's exactly what we don't have is the ability to adjust the ECU aside from going full stand-alone and dealing with the nightmares of trying to tun eone of those.
Mark P.
Mark Pain wrote:lifeisboost wrote:What i thinkyou guys really need is a map ECU we use them on supras and they are i think what you guys are missing... this will give you the finer control over the rest of the ECU
No sh1t tonto....that's exactly what we don't have is the ability to adjust the ECU aside from going full stand-alone and dealing with the nightmares of trying to tun eone of those.
Mark P.
whoa there buddy replys like that are not needed. a MAP ECU is an add on fuel control tuned with PC interface that piggy backs to your ECU and changes the MAP readings.
