Adj. Cam Gears + Crower 2s

[740 Turbo Brick]

Ive been driving on my Crowers for about a week now. The difference in power is noticeable, but I can feel the need to tune it to gain the most power out of it. I have an AEM Uego getting installed tomarrow, and an S-AFC installed shortly thereafter. I was told to tune to 12.5 AFRs. My question is, what will the Adjustable cam gears allow me to do? Change powerband, maximize air flow into the head? I remember reading somewhere, the best benefit for our cars is adjusting only one of the cams 5* in one direction, but not sure on it.



Also, I guess to throw everything into one thread, why after my cam install is my EGR tube getting so hot its burning the paint off and melting wires 5 inches away?

 

[VelocitàPaola]

Also, I guess to throw everything into one thread, why after my cam install is my EGR tube getting so hot its burning the paint off and melting wires 5 inches away?

Different cams mean the valves are opening at a different time during the combustion cycle. That can easily affect EGT's.

 

[e85_4g63]

I'm not sure who told you to adjust one cam 5* or who said to tune the car to 12.5 AFR, but I'd advise consulting with a pro tuner before you do anything that dangerous. I personally try and get 11.3 AFR's at WOT and don't mess with the cams (yet)....

 

[740 Turbo Brick]

I'm not sure who told you to adjust one cam 5* or who said to tune the car to 12.5 AFR, but I'd advise consulting with a pro tuner before you do anything that dangerous. I personally try and get 11.3 AFR's at WOT and don't mess with the cams (yet)....

The guy who told me 12.5 actually owns a dyno shop. He said 11.5 is a good area for Turbo cars, 12.5 is the most he would go for non turbo.

The cam gear thing I just read on another site, wasnt going to try it yet, just see if thats what the normal was.

 

[RoninEclipse2G]

Personally I'd block off the EGR now to save future headache. IIRC our cars responded really well to +2* intake and -2* exhaust, but I'm not 100% sure and I don't know what that would do with the crower 2's

 

[740 Turbo Brick]

Right now the EGR transducer is unhooked, but the valve and tube are, so the valve just isnt getting any air in. Ive noticed it wanted to stall when it closes the idle pintle, so Im going to try the fresh air intake for the EGR valve and block off the head port.

 

[adamzty]

The guy who told me 12.5 actually owns a dyno shop. He said 11.5 is a good area for Turbo cars, 12.5 is the most he would go for non turbo.

Gasoline max power rich is 12.5:1 AFR (0.85 Lambda). You are correct. You probably do not want to go any richer than that if you are NA.

You can buy EGR block off plates on ebay for about 10 bucks. Remove the whole EGR system and bolt those on.