AI200cc stock bottom end dyno results, 429rwhp with a miss
01-03-2008, 08:01 AM
#91
Banned
Join Date: Oct 2006
Location: Goochland, Va.
Posts: 4,970
Duds........
I was wondering if he had ever done a leak down with all the cracked guides.......had to have several problems. But without getting into that atleast its making power now. Should run if he can drive it , if not don't post any numbers. I hate being disapointed
I was wondering if he had ever done a leak down with all the cracked guides.......had to have several problems. But without getting into that atleast its making power now. Should run if he can drive it , if not don't post any numbers. I hate being disapointed
01-03-2008, 12:21 PM
#95
Registered User
Join Date: Jun 2003
Location: Carol Stream, Il.
Posts: 3,557
To many things to do for next season. Need a built trans, nitrous DS, back brakes, front tires for the street rims, re-tune with the nano system, shaft mounted rockers, etc. Let alone I need money for a 5 or 6 point bar.
I did pick up a used shortblock for a future nitrous project though, so you never know. Maybe I will give them a call, if money permits.
I did pick up a used shortblock for a future nitrous project though, so you never know. Maybe I will give them a call, if money permits.
01-04-2008, 09:12 AM
#96
Registered User
Join Date: Aug 2002
Location: Red Oak Texas
Posts: 1,509
Looks like this set up is working real well for you.
Not sure if the AI cam is larger than the BRE 224 duration cam or not, only Speed Demon knows for sure.
You probably actually checked PR length and geometry this time as opposed to on the LE heads. You told me you just used the same PR's you had before and did not know why it would be different, I told you anytime you change valve length, head gasket thickness, valve job depth, etc, it will effect PR length and this is just assuming it was correct before the LE heads were installed. Since it was not checked before this, who knows how far was off even before the new heads.
You can see by the pic on your photo bucket that the rocker is sitting off to the side of the valve on the LE heads. Guides are not gonna last long like that, even with the correct PR length (that you did not have).
Just wanted to point out some variances in stories.
The 2 LE head intake ports measured where 215.x and 216.x cc although that # keeps growing as Speed Demon tells the story.
Somewhere between the new heads, new cam (not sure if it is larger than 224 duration or not), new oil pan, proper rocker/PR geometry and tuning, you were able to find 24 HP over the old set up.
Lloyd
Not sure if the AI cam is larger than the BRE 224 duration cam or not, only Speed Demon knows for sure.
You probably actually checked PR length and geometry this time as opposed to on the LE heads. You told me you just used the same PR's you had before and did not know why it would be different, I told you anytime you change valve length, head gasket thickness, valve job depth, etc, it will effect PR length and this is just assuming it was correct before the LE heads were installed. Since it was not checked before this, who knows how far was off even before the new heads.
You can see by the pic on your photo bucket that the rocker is sitting off to the side of the valve on the LE heads. Guides are not gonna last long like that, even with the correct PR length (that you did not have).
Just wanted to point out some variances in stories.
The 2 LE head intake ports measured where 215.x and 216.x cc although that # keeps growing as Speed Demon tells the story.
Somewhere between the new heads, new cam (not sure if it is larger than 224 duration or not), new oil pan, proper rocker/PR geometry and tuning, you were able to find 24 HP over the old set up.
Lloyd
01-04-2008, 09:41 AM
#98
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Join Date: Oct 2001
Location: SoCal
Posts: 2,525
as if it makes any difference anyway
01-04-2008, 09:45 AM
#99
although i do agree with everything else you said, pr lenght and geometry are key elements
01-04-2008, 11:32 AM
#104
Registered User
Join Date: Jul 2002
Location: San Diego, CA
Posts: 1,193
Lol perhaps you missed the sarcasm. I didn't put a winky smily after my post but I thought people could draw the inference that 218cc heads may not be the best performers and might fall into the category of "bigger is better" mentality.
01-04-2008, 12:03 PM
#105
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Join Date: Jun 2000
Location: North Canton, OH
Posts: 1,764