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8s with a 4.8 and cast 76mm

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Old Oct 31, 2020 | 07:04 AM
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Default 8s with a 4.8 and cast 76mm

Went a new PR on mtn .. bandimere speedway 7500-8000 DA..

engine combo 4.8 stock block and crank aftermarket piston and rods , stock 863 heads not ported with spring upgrade, ls2 intake, cast 76mm and air to air ..

car is 1980 zephyr complete stock suspension no coil overs .. 3430 lbs on a 235 radial. Set up for 1/8 mile I run limited 235.

here is slip from the day and vIdeo from the race a month before.





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Old Oct 31, 2020 | 07:13 AM
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Nice runs! And on a 235, impressive. When you say stock suspension, how stock? Aftermarket arms? Tubular K? Adjustable control arm mounts? Sure doesn't leave like a stocker, lol
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Old Oct 31, 2020 | 07:21 AM
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Originally Posted by Bad Apache
Nice runs! And on a 235, impressive. When you say stock suspension, how stock? Aftermarket arms? Tubular K? Adjustable control arm mounts? Sure doesn't leave like a stocker, lol

has after market control arms all stock mounting points .. after market single
adjustable front struts .. double Adjustable rear shocks .. but no coil overs in rear . Springs still on the control arms in rear . Tubular K member .
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Old Oct 31, 2020 | 03:52 PM
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Works great! Got to the mid 1.50's 60 foot on completely stock suspension before problems started. The adjustability of the shocks/struts looks like it helps. Well done.
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Old Oct 31, 2020 | 05:17 PM
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Originally Posted by Bad Apache
Works great! Got to the mid 1.50's 60 foot on completely stock suspension before problems started. The adjustability of the shocks/struts looks like it helps. Well done.

im taking to Vegas next month for SCSN hope to go low 1.20s 60’ same chassis and tire just on that stickyickie and 5000’ better air
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Old Nov 1, 2020 | 05:26 AM
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That sir is very impressive
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Old Nov 4, 2020 | 02:47 PM
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Combo works well! Which Cast 76 is it? Note the sig. states Cast S474. how far di that turbo go?
What kind of RPM and boost? converter used? gear?

Congrats!
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Old Nov 4, 2020 | 04:13 PM
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Originally Posted by Forcefed86
Combo works well! Which Cast 76 is it? Note the sig. states Cast S474. how far di that turbo go?
What kind of RPM and boost? converter used? gear?

Congrats!
The old turbo was a cast BW s475 I went 5.86 117 in Denver but there was room for improvement, that was stock rods and pistons.

now it’s after market rods and pistons a cAst 76 ultra street legal .. it traps 7600 rpm makes about 30 psi here in Denver and 35 in Vegas .. ptc converter..
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