BIG BLOCK FORD
Would you like to react to this message? Create an account in a few clicks or log in to continue.

compression , pump gas and street driving.

4 posters

Go down

compression , pump gas and street driving. Empty compression , pump gas and street driving.

Post  whitefield January 16th 2015, 12:31 pm

This is not a daily driver it is one of my customers Trucks . 68 F100 466 srp flat top piston with one valve relief Dove C head stock 3.85 stroke ,edelbrock rpm performer intake 2 in primary tube headers 3000 stall 3.70 rear gear c6 comp cams .506 intake. 493 exhaust lift duration @ .050 226 intake 241 exhaust 107 lsa. truck is not a race truck and not a daily driver just a cruiser. block has not been decked

I came up with 11.56 compression .

will this combo run on pump gas or will it require race fuel ? Thanks
whitefield
whitefield

Posts : 2243
Join date : 2009-08-23
Age : 55

Back to top Go down

compression , pump gas and street driving. Empty Re: compression , pump gas and street driving.

Post  dirt_worker January 16th 2015, 2:13 pm

Imo that's too much static compression for pumpgas w such a small cam and iron heads.
Im assuming its got a zero deck?
You have any idea what the cranking compression is?



dirt_worker
dirt_worker

Posts : 535
Join date : 2009-04-03

Back to top Go down

compression , pump gas and street driving. Empty Re: compression , pump gas and street driving.

Post  IDT-572 January 16th 2015, 4:44 pm

Your compression if not decked will be around 10.5:1 with .030 deck. and with the quench that wide, you would be best to put a set of D3VE's on it. It will detonate on pump gas.

That would net you around 9.5:1 compression. That cam will build a lot of cylinder pressure with the narrow sep on it.

If your heads are not ported just swap them out.
IDT-572
IDT-572
BBF CONTRIBUTOR
BBF CONTRIBUTOR

Posts : 4628
Join date : 2008-12-02
Age : 63
Location : Shelbyville Tn.

Back to top Go down

compression , pump gas and street driving. Empty Re: compression , pump gas and street driving.

Post  whitefield January 16th 2015, 6:31 pm

Engine is not built yet , but already has the cam and pistons intake and headers. The heads is what he does not have yet and was wanting to buy my heads to put on his motor. They are the dove heads.
I told him I thought it would be to much compression as well.

Thanks for the replies I will tell him.
whitefield
whitefield

Posts : 2243
Join date : 2009-08-23
Age : 55

Back to top Go down

compression , pump gas and street driving. Empty Re: compression , pump gas and street driving.

Post  gt350hr January 16th 2015, 6:33 pm

+2 That is too much static for an iron head , and almost too much for an aluminum head even on 93.

gt350hr

Posts : 662
Join date : 2014-08-20
Location : Anaheim , CA

Back to top Go down

compression , pump gas and street driving. Empty Re: compression , pump gas and street driving.

Post  whitefield January 18th 2015, 4:59 pm

Update got it short blocked , and decided to go with the d3ve heads.
whitefield
whitefield

Posts : 2243
Join date : 2009-08-23
Age : 55

Back to top Go down

compression , pump gas and street driving. Empty Re: compression , pump gas and street driving.

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum