1970 Mustang Mach1 World Registry Forum

Welcome to the 1970 Mustang Mach1 World Registry this forum is open to all 1970 Mach1 owners & enthusiast around the world.
 
HomeHome  FAQFAQ  SearchSearch  RegisterRegister  MemberlistMemberlist  UsergroupsUsergroups  Log inLog in  

Share | 
 

 lack of power on Dyno

View previous topic View next topic Go down 
AuthorMessage
seany-boy
Mach1 Veteran
avatar

Number of posts : 158
Age : 56
Your location : Australia
Registration date : 2008-07-28

PostSubject: lack of power on Dyno   Sun 7 Mar - 7:04

Hi ,

I ran the car on a brief dyno run in the weekend and the results seemed a little disappointing. The car is a 351C-4V, rebuilt basically stock with 30 thou oversize and a mild summit 5201 cam. Has 750 holley DP and is a C6 auto now. (was manual). Stock exhaust and inlet manifolds. Exhaust is pretty crappy but I have not changed it as I am going to return to a manual at some stage. Mallory unilte with electronic ponts but no vac advance. Not sure of timing and fuel mix seems ok on dyno.
The guy said he was not surprised old car etc, but the rebuild seems to have been done reasonably well.

any thoughts?

sean
Back to top Go down
View user profile
booah
Mach1 Member


Number of posts : 10
Your location : W.A. Australia
Registration date : 2009-02-15

PostSubject: Re: lack of power on Dyno   Tue 9 Mar - 8:05

Hi Sean

Am I reading the rpm correct, nothing over 3000rpm?

regards

Denton
Back to top Go down
View user profile
seany-boy
Mach1 Veteran
avatar

Number of posts : 158
Age : 56
Your location : Australia
Registration date : 2008-07-28

PostSubject: Re: lack of power on Dyno   Tue 9 Mar - 13:28

Hi Denton,

I think they are just incorrect, it seems to have been mapped against KPH. When I run a calculator on the speed, diff ratio and tyre size in top gear then I get 3900 at 150KPH and 2800 at 116KPH which are the peak torque and HP measurements.
So I ignored the rev numbers but was concerned about the HP numbers- assuming they are correct. Wondering if slightly retarded timnig would have a big impact?

Cheers

Sean
Back to top Go down
View user profile
Sponsored content




PostSubject: Re: lack of power on Dyno   

Back to top Go down
 
lack of power on Dyno
View previous topic View next topic Back to top 
Page 1 of 1
 Similar topics
-
» Lack of power above 4000 rpm
» Sudden Poor Running Total Lack of Power?
» Piaggio porter 1.4 diesel as lack of power . Can any one help?
» Dyno day/ open house at bulleye-power, Michigan October 2nd
» POWER COMMANDER FOR 1250

Permissions in this forum:You cannot reply to topics in this forum
1970 Mustang Mach1 World Registry Forum :: DISCUSSIONS :: Tech Discussion (Q&A), Problems, Fixes. etc..-
Jump to: