Skip to main content

Replies sorted oldest to newest

Kevin, I got one of your brochures for "Dyno Day". The brochure makes an offer to dyno my car - three pulls - and weigh my car, then publish the power to weight ratio. The price is very good, but us speedster guys are NOT going to get into your 5 pounds per HP challenge!

Lacking a few modifications, like a blower or turbo, nitrous, and a revised chip, 10 pounds per HP is probably a fantasy for most of us. Probably more like 12 or 15 pounds. So how much of a "razzin" do I want to subject myself to......hmmm .....???

Dave,

You would be surprized what a slightly prepaired VW engine can put out....
Example:
car weight: 1400lbs
Engine hp : 135
==========: 10.3lbs to 1 hp

Not so bad

our 914 with an LS engine
Car weight: 2270
Engine hp : 450
==========: 5.04lbs to 1 hp

The 914 does the 1/8 mile in 8.10 at 92mph
The 356 does the 1/8 mile in 8.90 at 76mph

Horse power to weight is not everything..... only 16 mph and not even a second.... Yes I ran both of these cars, and I drove them like I stold them...... No Mercy!!!
Well Kevin, that is exactly why I'm interested in your Dyno Day. I had my car on JBA's dyno many years ago, so i have a baseline. Since then I have:

Added velocity stacks.
Increased the valve size from 39 & 35.5 to 44 & 40, accompanied by the appropriate valve train changes.
Added a BAS 4-1 merged header with Dynomax muffler.
Rejeted the Webers to this combination.

Unfortunately, when rebuilder ran-in the valve train (fully dressed), he only dynoed it up to 5000 RPM. I wasn't even expecting that, but the resulting graph is WAY better than the baseline. And I know it pulls waaaay past 5000 RPM! So I am sorta hooked to find out more.

Post Content
×
×
×
×
Link copied to your clipboard.
×
×