6g74 route

[IPD]

If you have a 91-92 CAS, you can try adjusting your base timing and then log it to make sure you aren't knocking. For 93+ models, you would either need a piggy back timing controller like an emanage or swap to a flashable ecu. You may even be able to find an ECU that matches the engine if you search hard enough.

so maft+safc isnt' going to cut it. adjustable cam gears to retard the timing? and is this a 74 only issue...or both a 72 & 74 issue?

[Hans@GZP]

It's the added stroke of the 3.5 liter. You could to a maft pro... that has timing control.

[IPD]

fml. wish i'd known that before i got the maft 1.0

[TUFFTR]

As a safeguard you MUST run the highest octane fuel you can buy.
Same deal when people convert from the SOHC 24v 72's to the SOHC 24v's in the magnas running the 3L ECU. You have to run the 98 octane fuel or else it'll ping it tits off.

[n2nsanity]

idk, how the oil pressure is couldnt get the damn gauge to work

u swap that section of the harness? (3 pin instead of the 2 pin)

[n2nsanity]

Lots of these 3.5 swaps fail because they are running a stock 3.0 ecu. It seems that the timing is too far advanced and it causes the engine to kill itself. Mine did it in my satin black car. Spun a bearing in only 3000 miles.

that's the 1st i've heard anyone mention this
makes sense tho

[jessecain1]

u swap that section of the harness? (3 pin instead of the 2 pin)

yea its all pluged in the damn thing wont work at all thou, idk at this point. i just ordered halo software and there cables so i can at least log whats going on. It's easy for me to put somthing in its a whole diffrent story when it comes to tunning im really going to need help on this one.

[GTwizard]

You can PM me once you get that installed. More than happy to help.

[jessecain1]

You can PM me once you get that installed. More than happy to help.

thanks, i will take you up on that, would really love to get this thing tuned in. AS far as the hesitation problem i simply cleaned the iac and tada it vanished, made my day

[foreveralone]

Lots of these 3.5 swaps fail because they are running a stock 3.0 ecu. It seems that the timing is too far advanced and it causes the engine to kill itself. Mine did it in my satin black car. Spun a bearing in only 3000 miles.

For those contemplating this at high elevation, this is actually good news.