On the 383 listed in my sig (non-third gen), I am having a puzzling problem.
Around 4000 rpm, in first gear only, it seems like I run into a wall. The car ceases to pull and the rpms stop climbing. The motor sounds fine, not dropping any cylinders or anything. When I switch to second gear i can rev to 6000 rpm.

It gets stranger, I had a 3.42 rear in it last summer and it did the same thing. I grenaded that rearand and put in a junkyard special that housed 2.41 gears. I could rev up to 6000 in every gear. Now with a different rear that houses new Richmond 3.42 gears and a Powertracks locker, I experience the same thing.

So my question is, what is causing this strange problem with the lower ratio rearends?

Could it be fuel delivery? I am running a stock replacement from a chain store.
Could it be something in the tranny?
Could it be....????

Need more info-- just ask

Any suggestion is appreciated.
Thanks

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LOBC-- SS-84

92 RS Heritage package with a 305 3" high-flow cat and pipe with a Dynomax 3" in dual 2 1/2" out.

84 El camino- 383 CID, Performer RPM, GMPP vortec heads, Holley 750 D.P.(0-4779c), Crane Energizer 274,Dual 3" Flowmaster 40 Series Exhaust, TCI 2500 stall, Richmond 3.42 gears, PST Poly graphite Suspension bushings, PST steering linkage, PST springs, Monte SS sway bays, Wheels from a Third gen(does that count?)

 

***Bump***

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LOBC-- SS-84

92 RS Heritage package with a 305 3" high-flow cat and pipe with a Dynomax 3" in dual 2 1/2" out.

84 El camino- 383 CID, Performer RPM, GMPP vortec heads, Holley 750 D.P.(0-4779c), Crane Energizer 274,Dual 3" Flowmaster 40 Series Exhaust, TCI 2500 stall, Richmond 3.42 gears, PST Poly graphite Suspension bushings, PST steering linkage, PST springs, Monte SS sway bays, Wheels from a Third gen(does that count?)

 

Strange problem, doesn't sound like fuel delivery since you can get up to 6k in second.. Im a novice when it comes to transmissions, but I think that is probably where you should look.

 

Does this sound plausible? I have a turbo 350.
Am I reving so quick that I am draining the tranny pan of fluid?
---or---
Do I have a real restrictive filter in the tranny, and it can't get enuff fluid?

Neither????


------------------
LOBC-- SS-84

92 RS Heritage package with a 305 3" high-flow cat and pipe with a Dynomax 3" in dual 2 1/2" out.

84 El camino- 383 CID, Performer RPM, GMPP vortec heads, Holley 750 D.P.(0-4779c), Crane Energizer 274,Dual 3" Flowmaster 40 Series Exhaust, Turbo 350 (375b), TCI 2500 stall, Richmond 3.42 gears, PST Poly graphite Suspension bushings, PST steering linkage, PST springs, Monte SS sway bays, Wheels from a Third gen(does that count?)