Drag builds
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427Hotrod (04-05-2024),
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#22
Dementer sole survivor
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#23
Pro
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Rescue Rogers (04-05-2024)
#24
Team Owner
#27
Team Owner
Is it a common plenum tunnel ram? What tranny and stall. What is your max rpm if you are running out at 1000 feet? I shift into 5th from 1 to 1 4th gear at @135 mph with my 4.11 and 28 inch tall tires
#28
Race Director
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Location: Corsicana, Tx
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I wouldn't expect it to run out of RPM with 4.11's unless the rev limiter is set low or a LOT of converter slippage?
What sort of 1/4mile MPH? 130'ish?
JIM
What sort of 1/4mile MPH? 130'ish?
JIM
#29
Pro
28" tires, 4.11 gears, th350 with 3200 stall converter. Rev limiter set at 6700 rpm. Shifting @6200 rpm. In the 1/8 I go through the lights at 6000 rpm
#30
Pro
#31
Race Director
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My old 427 Camaro ran 135 MPH with some N20.....up from 118 MPH N/A. Was twisting it pretty hard with the 4.10's and sometimes 4.56's. But it seemed to like it and never died.
I cross the line at 8K in the 'Vette these days with the 555". I sorta cringe when I think about how much stuff is spinning around in there with a 4.25" stroke....but it's been doing it for many years with no issues.
Solid roller ought to have a lot of RPM left in it....
Picking up 25 MPH on back half is fun. When mine was N/A it gained 30 MPH and it was fun to run folks down on the big end! With boost it gains 40+ MPH.....
JIM
#32
Drifting
#34
Burning Brakes
My friend Al, who does not post, just had a nice outing in his C3. He's not a spring chicken.
Still has an independent rear. I'll try to get a picture of the car.
Still has an independent rear. I'll try to get a picture of the car.
Last edited by DblTrbl; 04-08-2024 at 08:55 AM.
#36
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Now...tell folks about that monster of yours!!
JIM
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OldCarBum (04-07-2024)