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M8 128 build horsepower and torque issue

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Old Dec 22, 2021 | 04:58 PM
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Originally Posted by Oldskewl
The Zippers Big Bore 128 kit is 10.9:1 compression using a Red **** 552 Cam making about 155HP / 160TQ with only #225 lbs of cranking compression. Of course that requires TB, injectors ect ect
What’s heads come with this kit?
 
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Old Dec 22, 2021 | 06:20 PM
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Originally Posted by Oldskewl
The Zippers Big Bore 128 kit is 10.9:1 compression using a Red **** 552 Cam making about 155HP / 160TQ with only #225 lbs of cranking compression. Of course that requires TB, injectors ect ect
I’m running the Redshift 552 in my 124”. 147hp/145tq. I’ve never seen a dyno run ever come close to the numbers Zippers post for their kit.
 
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Old Dec 27, 2021 | 09:21 AM
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Originally Posted by Quik
What’s heads come with this kit?

It's a head swap.
 
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Old Dec 27, 2021 | 09:30 AM
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Originally Posted by Oldskewl
It's a head swap.
Oh, so they claim 155/160 with stock heads?
 
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Old Dec 27, 2021 | 09:34 AM
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https://www.zippersperformance.com/z...-eight-models/


I don't know if I'll reach t hose numbers or not.
 
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Old Dec 27, 2021 | 09:36 AM
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Originally Posted by BigT12
I’m running the Redshift 552 in my 124”. 147hp/145tq. I’ve never seen a dyno run ever come close to the numbers Zippers post for their kit.

That's a 124 and you're only talking about 3-4 more hp
 
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