Performance test today...

[krb1945]

Temp was 78 about 2pm today... humidity about 55% so I took the 08 SM5 for a spin. Did a normal ride over some of the roughest pavement I know of in my area. Wanted to see if it caused any missing or other problems. Steering working perfectly. No hi-cups or missing in the engine. Tried to lift a front wheel in the sharp curves no success. With the suspension set on 5 it is a real stable platform. This is the unit I made the twin manifold for... it has GL1800 mufflers installed.
There is one thing that is puzzling though... These mufflers are real quiet on a 6 cyl 1800 but they do report on this V-2. I was getting more power than you can imagine, 30 to 80 in a very short distance. RPMs to 9 thousand in 2, 3, and 4 before you could blink.

Then I did the test that makes us all cringe... 4th gear at 30 mph for about 4 miles. Smooth as silk at this demanding low speed. I do not recommend doing this... I was testing for engine performance. I remember my grandfather use to idle around in high gear on the farm truck. Drove me nuts. "No one could ask for a machine to run better." No coughing, spitting, sputtering just pure raw power when asked to deliver it.

I'm pleased as punch with the performance. /Ken

[SpyderWolf]

and thanks for the update.

[Cruisin Dave]

...There is one thing that is puzzling though... These mufflers are real quiet on a 6 cyl 1800 but they do report on this V-2....

Lower number of cylinders are always harder to muffle. The 'Wing mufflers are baffled for 6 cylinders. A V-8 with dual glasspacks always sounds mellower than the same glasspack on a four cylinder.

[krb1945]

I appreciate that info. I just received a used pair of Susuki mufflers. I'm going to make another lower manifold for these and see how they sound on the black widow.