sz28aro

iTrader: (9)

after installing a th400 into my trans am. I cant rev passed 6k rpms. when the car had a t56 in it I could pull it to 7k+. cant figure out why. could swapping in the auto lower the t56 rev limiter? any help would be awesome thanks mike

SuperSlow02

iTrader: (16)

Did it get a retune?

sz28aro

iTrader: (9)

no I haven't yet. just trying to figure out before wasting dyno hours

sz28aro

iTrader: (9)

runs really good. first time test n tune at the track was running mid 11-high 11 un tuned. cant make full pass cause its bouncing of the limiter

cantfind2nd

iTrader: (24)

You have something for speedo signal hooked up?

SuperSlow02

iTrader: (16)

I was asking because If it was retuned the tuner may have turned it down on accident. Happend to me before

sz28aro

iTrader: (9)

the speedo is currently not working. didn't wire it up to anything yet.

cantfind2nd

iTrader: (24)

Mine wouldnt rev as high until it had a speedo signal. Get it off your front abs speed sensor or get a sensor and pick up wheel for your transmission. Bet thats your problem.

sz28aro

iTrader: (9)

i have been looking for the best way to get the speedo to work.. how did you do it. or know where to find how to. thanks

cantfind2nd

iTrader: (24)

Search it on transmission section on here , a few good write ups.

sz28aro

iTrader: (9)

I found them. thanks
that would be nice if that's my problem... how high could you rev be for you did this

cantfind2nd

iTrader: (24)

5800 to 6000

LeBron_Hill

iTrader: (2)

I have a th350 in this new car i bought and seem to be having exactly the same issue...do you have a link to what to do to fix the speedo issue?

sz28aro

iTrader: (9)

[QUOTE=LeBron_Hill;17375140]I have a th350 in this new car i bought and seem to be having exactly the same issue...do you have a link to what to do to fix the speedo issue?[/QUOTE
https://ls1tech.com/forums/showthread.php?t=479729&page=4

sz28aro

iTrader: (9)

just got around to trying to see if the vss wired up fixed the limiter problem. still bouncing off limiter at 6k... but the speedo works now! lol

any other ideas????

93camaro_zzz

iTrader: (13)

I was just thinking about this. With tiring the speedo into the front ABS sensor, won't this be ineffective if you are dynoing your car? Because your speedo would read 0 the entire time, and maybe still not allow you to go over 5800 to 6000 and negatively affecting your dyno numbers?

sz28aro

iTrader: (9)

after I wired up vss sensor to abs and speedo worked. I took it for a spin down the highway. speedo climbs
then at 115mph 5800-6000 its back bouncing on the rev limiter.

I have no way to wire it to my rear end, has a 9 inch and all abs is deleted from car. the front sensors are still there tho.. taking it to my tuner tonight to have him hook up the car and see whats going on. just talking to him all the factory t56 sensors needs to be deleted out of the tune. hopefully find out tonight!

fastsspr

iTrader: (49)

You fixed the problem? Probably you have to delete all the transmission information and work only with the engine parametters.

93camaro_zzz

iTrader: (13)

sz28aro, that sucks man. I am in a similar situation as you where my car is not exactly acting up like yours is, but that still doesn't change the fact that I have no speedo. Because of the situation I posted up above, I am thinking about just doing this thing the correct way and putting a reluctor wheel and the TH400 VSS sensor in my tranny. Then wiring it up that way. I'll keep you guys updated.