[AWDkitkat]

Car has been running FWD with welded viscous for dyno reasons.
Today the drive shaft was reinstalled for rwd.
Immediately a humming noise is noticeable at about 10-15+ mph. when coasting in neutral you can feel the car being pulled down slightly, and humming down. The transfer case is full

 

[llsectalon]

Did you do a bunch of burn outs in Fwd and ware the tires down so thay are different size. If tires are not exact same size thay will cause binding in the tranny with a welded vc.

 

[AWDkitkat]

I dont think a burn out will cause that. but you do have a point. the drivers rear tire is the wrong size.

 

[eclipse1gen]

So what were your dyno results??:dunno:

 

[AWDkitkat]

ended up that the wrong size tire cuased it.
320hp 289tq on pump gas(not my car, i only work on it)

 

[eclipse1gen]

Good numbers!

 

[AWDkitkat]

thanks, not bad, that was on pump gas.

 

[eclipse1gen]

What setp?

 

[AWDkitkat]

br20g,
35mm crapgate,
tube o2,
BR street fmic,
evo manni,
660's,
w255hp
S-afc, thats about it.
Could have went way leaner but not my car. that presbend 2.5 aint helping much

 

[DocLo]

I don't know about way leaner when I'm driving around with the same settings (and I have been trying leaner/richer variations) and the egt's are climbing to 1600+ faster than on the dyno.



btw it's my car and I work on it too hahah

 

[Rogue_Ant]

Remember that high egt's aren't just a function of A/F ratio, but also can be the product of low timming advance.

Rogue

 

[AWDkitkat]

timing was good

 

[Rogue_Ant]

timing was good

Lol, interesting response.
What was the Base timming set at?
How much advance did you see on the runs?
Was there any knock?

Rogue

 

[DocLo]

Base timing is set at 8 degrees, but at idle, the logger shows it jumping from 6-10, never could get it steady

Advance during the runs was 18-21 degrees, 23 in a some spots...


no Knock - well we got 1 knock once, but that was it