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Forum: Pontiac - Race 02-04-2023, 02:03 PM
Replies: 40
Views: 2,955
Posted By quick67bird
I am using the flat tappet springs Kauffman...

I am using the flat tappet springs Kauffman suggested for the solid comp cam they sold me. It was of similar lift and a little less duration at .050. I believe it was a faster and more aggressive...
Forum: Pontiac - Race 02-04-2023, 01:53 PM
Replies: 40
Views: 2,955
Posted By quick67bird
Sorry forgot rocker ratio. 1.65 rockers. Valves...

Sorry forgot rocker ratio. 1.65 rockers. Valves in these heads are 2.19 intake and 1.66 exhaust.
Forum: Pontiac - Race 02-03-2023, 01:03 PM
Replies: 40
Views: 2,955
Posted By quick67bird
No sir. Those were with my old 6x headed comp...

No sir. Those were with my old 6x headed comp cam 295s flat tappet cam. I have not had my car to the track in a very long time.
Forum: Pontiac - Race 02-03-2023, 01:01 PM
Replies: 40
Views: 2,955
Posted By quick67bird
The engine has kre Dport 74 cc heads. ...

The engine has kre Dport 74 cc heads.

lift......Intake......Exhaust.....%
100....77.1..........62.6.........81.1
200....150.6.........114.6........76
300....204.9.........152.9........74.6...
Forum: Pontiac - Race 02-03-2023, 12:51 PM
Replies: 40
Views: 2,955
Posted By quick67bird
I am looking for a bit more reliability for now. ...

I am looking for a bit more reliability for now. I had a couple of cam failures with the higher intensity flat tappet lobes quite a few years back. I still don’t know why as my break in procedure...
Forum: Pontiac - Race 02-03-2023, 12:42 PM
Replies: 40
Views: 2,955
Posted By quick67bird
Thank you Stan. The graph looks like duration is...

Thank you Stan. The graph looks like duration is increased like lift is when the rocker ratios change. I kind of thought that, but the visual helps.
Forum: Pontiac - Race 02-02-2023, 12:54 AM
Replies: 40
Views: 2,955
Posted By quick67bird
I did see the lift was quite a bit more. The...

I did see the lift was quite a bit more. The flat tappet cam could very well pick up some of the lost HP if you put a rocker on it that would increase the lift. How much does a rocker change...
Forum: Pontiac - Race 02-02-2023, 12:16 AM
Replies: 40
Views: 2,955
Posted By quick67bird
https://www.chevelles.com/threads/solid-roller-vs-...

https://www.chevelles.com/threads/solid-roller-vs-solid-flat-tappet.119279/

Here is a post from Harold Brookshire (RIP) from UD posting about this subject.
Forum: Pontiac - Race 01-31-2023, 11:54 PM
Replies: 40
Views: 2,955
Posted By quick67bird
I remember you posting about a solid cam engine...

I remember you posting about a solid cam engine you ran. Your solid is about the same lift as this one with my 1.65 rockers. I picked this cam up from Crower on a clearance sale and I like it so...
Forum: Pontiac - Race 01-31-2023, 02:53 PM
Replies: 40
Views: 2,955
Posted By quick67bird
It seems to do well for now. When I pull this...

It seems to do well for now. When I pull this engine for my wife’s car I will put a much tamer cam in it.
Forum: Pontiac - Race 01-31-2023, 02:52 PM
Replies: 40
Views: 2,955
Posted By quick67bird
That was my guess, but I didn’t want to argue.

That was my guess, but I didn’t want to argue.
Forum: Pontiac - Race 01-31-2023, 02:51 PM
Replies: 40
Views: 2,955
Posted By quick67bird
That is what I figured. I am far from an expert,...

That is what I figured. I am far from an expert, but I did put a combination of budget friendly parts together that runs pretty good.
Forum: Pontiac - Race 01-31-2023, 02:50 PM
Replies: 40
Views: 2,955
Posted By quick67bird
Yeah optimal is the key word. This cam serves...

Yeah optimal is the key word. This cam serves the purpose for now.
Forum: Pontiac - Race 01-31-2023, 02:48 PM
Replies: 40
Views: 2,955
Posted By quick67bird
It definitely likes RPM. I need to get it to a...

It definitely likes RPM. I need to get it to a track soon. I have just been playing on the streets.
Forum: Pontiac - Race 01-31-2023, 12:07 AM
Replies: 40
Views: 2,955
Posted By quick67bird
Big solid flat tappet compared to similar design roller HP loss

Hey guys I was talking to a guy at work about my car and we were discussing my cam in my engine. He was telling me that the huge solid flat tappet I was running was probably down over a 100 HP from...
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