C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette

how much HP loss from crank to rear axle

Old 06-10-2019, 07:53 PM
CF Senior Member
JoeMinnesota's Avatar
Member Since: May 2016
Location: Lake St. Croix Beach MN
Posts: 651
Received 122 Likes on 108 Posts

Ouch - well fortunately with assembly lubes likely no issues from those few seconds. At Sharadon Larry did my dyno work and was patient, methodical and we eventually got it sorted, so worked out okay.
JoeMinnesota is offline  
Old 06-11-2019, 10:07 PM
Junior Member
Member Since: Jun 2019
Location: Pennsylvania
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default Dyno HP

I love to read all the posts about Corvettes in general. I am a proud owner of a 1981 Corvette. The stock engine only ran a 15.0 after taking all the smog stuff off and AC stuff. Also had a chip in it.
I went to a all custom 350 engine. Even the block was decked, port polished and 40 over. Decided on the Dome Speed Pro pistons. I know for a fact that all rpm ranges for all parts need to match up well.
So I did a 268 Comp Cam. Balanced all the internals and did Eagle Rods. Went with Linatti push rods.
Last went with Edelbrock for the Aluminum cylinder heads, dual plane Intake, and Edelbrock 750CFM 4 barrel. Compression is 10.5.1. So it can do 87 or 93 octane 100% gas
I never researched the statistic hp just the dyno hp. The dyno said 418hp. One factor that helped out tremendously is the transmission I upgraded to was going to go into a 7 second quartermile C3 vette. The owner installed it in my Vette instead. The rear gear ratio is stock.
I was too scared to run my Vette in a quarter. Did run it 0-60 and did 4.0 consistently. Just launched it at 2200 to 2400 RPM. The curb weight is around 2900lbs. I would guess 12.5 to 11.8 range for a quartermile.
Right now I have the timing low so I can run 87 octane. Engine has zero run on when you have it in drive and turn the engine off. Even then the car scares me at 35mph when you punch it. The car goes side to side and speedo cannot keep up.
Really impressed with the build and C3 Vettes. Would love to hear more.

Last edited by Customcorvette; 06-11-2019 at 10:08 PM.
Customcorvette is offline  

Thread Tools
Search this Thread
Quick Reply: how much HP loss from crank to rear axle

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: