This is topic Will compression work on pump gas in forum Tech Talk at Northern California Ford Owners  .


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Posted by FORD POWER (Member # 7860) on :
 
I am curious to know if it is an anyway possible to run 11.1.1 compression on pump gas. If so, how?
Or what is the highest compresion that can be runn on pump fuel?

This is for a 347ci block.
 
Posted by FasterDamnit (Member # 442) on :
 
Well,
Not a simple answer. Static compression, combustion chamber design, aluminum vs. iron, dynamic compression (ie how big your cam is plus rest of combo), cooling efficiency, ignition timing...


Yes, 11:1 will work w/ good Al heads, good sized cam, good cooling, more gear than stock.
 
Posted by FORD POWER (Member # 7860) on :
 
quote:
Originally posted by FasterDamnit:
Well,
Not a simple answer. Static compression, combustion chamber design, aluminum vs. iron, dynamic compression (ie how big your cam is plus rest of combo), cooling efficiency, ignition timing...


Yes, 11:1 will work w/ good Al heads, good sized cam, good cooling, more gear than stock.
THe cam I want to go with is the CompCam xe 282hr, I hope to get AFR 205 heads, high flow water pump. aluminum radiator and even a 165 thermostat to keep things cooler.

What you think?
 
Posted by uncle bill (Member # 3953) on :
 
im running same cam, 10.5 with afr 185 on pump gas with no problem
 
Posted by F8LSN8K (Member # 7080) on :
 
quote:
Originally posted by FORD POWER:
quote:
Originally posted by FasterDamnit:
Well,
Not a simple answer. Static compression, combustion chamber design, aluminum vs. iron, dynamic compression (ie how big your cam is plus rest of combo), cooling efficiency, ignition timing...


Yes, 11:1 will work w/ good Al heads, good sized cam, good cooling, more gear than stock.
THe cam I want to go with is the CompCam xe 282hr, I hope to get AFR 205 heads, high flow water pump. aluminum radiator and even a 165 thermostat to keep things cooler.

What you think?
imo, i think the 205's seem a bit too much. 185's should do fine.

i could be wrong, but just my .02
 
Posted by 90lxfoxbody (Member # 6947) on :
 
205s would work depending on what intake.U would need to go with a vic style intake to utilize the head at high rpm.
 
Posted by FORD POWER (Member # 7860) on :
 
i WOULD LIKE 205 HEADS BUT IF I STICK TO 185'S THAT LEAVES SOME CASH FOR PORT WORK SO I THINK I MIGHT LEAN TOWARD THE 185'S.

wHAT KIND OF RWHP NUMBERS CAN I EXPECT FROM A N/A 10.5.1 347ci? XE828HR cam, AFR 185's W/ STAGE 2 PORTING, AND OUT DA BOX TFS R INTAKE.
 
Posted by F8LSN8K (Member # 7080) on :
 
quote:
Originally posted by FORD POWER:
i WOULD LIKE 205 HEADS BUT IF I STICK TO 185'S THAT LEAVES SOME CASH FOR PORT WORK SO I THINK I MIGHT LEAN TOWARD THE 185'S.

wHAT KIND OF RWHP NUMBERS CAN I EXPECT FROM A N/A 10.5.1 347ci? XE828HR cam, AFR 185's W/ STAGE 2 PORTING, AND OUT DA BOX TFS R INTAKE.
350-400rwhp roughly
 
Posted by FORD POWER (Member # 7860) on :
 
Well i'm trying to reach 425rwhp. I could always port the intake aswell to try to get there. Dyno tune is always good to find a few extra ponies [Wink]
 
Posted by Curt (Member # 6254) on :
 
my Cleveland has 11 to 1 and runs fine on 91, of course its running a little rich [Big Grin]
 




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