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

Iron head compresion ratio in a superchared application

4 posters

Go down

Iron head compresion ratio in a superchared application Empty Iron head compresion ratio in a superchared application

Post  jones January 31st 2010, 10:44 pm

How much compession can you get by with in a supercharged (roots blower) iron headed engine? (using race fuel, no e85 or methanol)

jones

Posts : 2230
Join date : 2008-12-02
Location : Philadelphia, MS.

Back to top Go down

Iron head compresion ratio in a superchared application Empty Re: Iron head compresion ratio in a superchared application

Post  IDT-572 January 31st 2010, 11:33 pm

jones wrote:How much compession can you get by with in a supercharged (roots blower) iron headed engine? (using race fuel, no e85 or methanol)

Dang Josh ......... you ask those hard questions Rolling Eyes

I would say more than your stock block will contain. Shocked With race fuel compression could be more than practical.
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

Iron head compresion ratio in a superchared application Empty Re: Iron head compresion ratio in a superchared application

Post  jones January 31st 2010, 11:41 pm

I'd like get the truck into the high 9's Which I figure would take 800hp.I am at 10.8 c/r right now.

jones

Posts : 2230
Join date : 2008-12-02
Location : Philadelphia, MS.

Back to top Go down

Iron head compresion ratio in a superchared application Empty Re: Iron head compresion ratio in a superchared application

Post  IDT-572 January 31st 2010, 11:52 pm

My opinion is 10 lb of boost would do it..............With a charger capable of moving enough air at that boost level. My 331 cid Lightning is doing 500 to the rear tire on 14 lb with 200 cfm sissy heads and 8.5 :1 compression.
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

Iron head compresion ratio in a superchared application Empty Re: Iron head compresion ratio in a superchared application

Post  jones January 31st 2010, 11:54 pm

Should I look for a 8/71 or 10/71 gas blower unit for the 527cu (non stripped)

jones

Posts : 2230
Join date : 2008-12-02
Location : Philadelphia, MS.

Back to top Go down

Iron head compresion ratio in a superchared application Empty Re: Iron head compresion ratio in a superchared application

Post  IDT-572 February 1st 2010, 12:02 am

That question is above my pay grade, but I would guess a 10/71 would move more air and have a cooler charge.

And not be to big on a 527 inch engine.

Maybe some of the blower guys will enlighten us............ Cool
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

Iron head compresion ratio in a superchared application Empty Re: Iron head compresion ratio in a superchared application

Post  jones February 1st 2010, 12:08 am

I hope we have some blower guys see this. It would be nice to get some more info and recomendations.

jones

Posts : 2230
Join date : 2008-12-02
Location : Philadelphia, MS.

Back to top Go down

Iron head compresion ratio in a superchared application Empty Re: Iron head compresion ratio in a superchared application

Post  Big block fox 339 February 1st 2010, 11:08 pm

come on jones stop trying to make your truck faster lol i was hoping we were gonna have a good race when we both got threw Very Happy
Big block fox 339
Big block fox 339

Posts : 279
Join date : 2009-11-23
Age : 36
Location : Philadelphia Ms.

Back to top Go down

Iron head compresion ratio in a superchared application Empty Re: Iron head compresion ratio in a superchared application

Post  jones February 2nd 2010, 9:25 am

Big block fox 339 wrote:come on jones stop trying to make your truck faster lol i was hoping we were gonna have a good race when we both got threw Very Happy

LOL after looking yesterday at prices of these roots blowers I might as well stick with nitrous.

jones

Posts : 2230
Join date : 2008-12-02
Location : Philadelphia, MS.

Back to top Go down

Iron head compresion ratio in a superchared application Empty Re: Iron head compresion ratio in a superchared application

Post  83-88T-Bird Guy February 2nd 2010, 1:35 pm

jones wrote:
Big block fox 339 wrote:come on jones stop trying to make your truck faster lol i was hoping we were gonna have a good race when we both got threw Very Happy

LOL after looking yesterday at prices of these roots blowers I might as well stick with nitrous.

Good idea.
If my BBF Procharger deal doesn't work out, I am going to spray it a bit.
83-88T-Bird Guy
83-88T-Bird Guy

Posts : 1003
Join date : 2008-12-03
Age : 109
Location : Bardstown, KY

Back to top Go down

Iron head compresion ratio in a superchared application Empty Re: Iron head compresion ratio in a superchared application

Post  Big block fox 339 February 2nd 2010, 10:17 pm

jones wrote:
Big block fox 339 wrote:come on jones stop trying to make your truck faster lol i was hoping we were gonna have a good race when we both got threw Very Happy

LOL after looking yesterday at prices of these roots blowers I might as well stick with nitrous.


Yeah I think I'm just gonna stay with a Lil hunerd shot
Big block fox 339
Big block fox 339

Posts : 279
Join date : 2009-11-23
Age : 36
Location : Philadelphia Ms.

Back to top Go down

Iron head compresion ratio in a superchared application Empty Re: Iron head compresion ratio in a superchared application

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