T_Cab Cyl vs 8 Cly Exhaust

[T-CAB]

I have changed my OHV 6 to a 259 V8 in my 1962 T-cab. The front "Y" enhaust pipe has been joined to the existing pipes and muffler. I don't seem to have the power that I thought it should have. Would small pipes and muffler from the "6" be causing too much back pressure, thus redicing power?

Thanks

T-cab

[kamzack]

I'd put dual exhaust on it. My opinion, it's like trying to pour a large quantity of liquid quickly into and through a funnel with a real small end. Funnel overflows can't escape fast enough. With duals, you'll get the power your were expecting and nothing sounds better than a Stude V8 at the end of 2 pipes. Use at least 2 inch pipe.
Hope this helps,
Kim

[laughinlark]

The exhaust will restrict some power. I'd make sure the 259 is tuned well. Check the timing, point gap, carb adjust, ect., since the engine was recently transplanted.

Gordon

[jclary]

I agree with the above comments. Another thing...what have you coupled that engine with as far a transmission and rear end?

[Clem64]

A single 2 1/2" dia. system beginning at the Y, along with an efficient low back pressure muffler would be a simpler (because of the fuel tank location), less costly, sound good and be quite adequate on a 259 powered Champ.

[sweetolbob]

T-Cab

The easiest thing to do is to disconnect the system after the Y-pipe and drive it. If it's better, Although loud, then it's the exhaust, if not look else where.

I'll bet it need a tune up but the exhaust is easy to check.

Bob

[T-CAB]

Concerning what it is connected to: The transmission is a 3-speed standard with OD. The rear end is 4.55:1. The carb is a standard 2-brl stromberg. The engine was rebuilt with new .20 OS pistons.

The original 6 cyl seems to have as much pickup was the V8.

Thanks for the replies.

[laughinlark]

After reading your original post and the replies made me wonder if the heat riser was the problem?

Gordon

[studebakerkid]

With the cubic inch increase that you did you should notice quite a bit of diffference. Besides the tune up you also might check your high tension wire routing. Iyt could well be that you have some arcking goin on so plugs are fireing at the wrong time. It is real easy to spot under the hood on a dark night.