TFS vs PRC Terminators for small, reverse split cam?
#1
TFS vs PRC Terminators for small, reverse split cam?
Any of the heads/cam gurus have some input on which of these heads would work better with an MTI Stealth II - 224/220 .581/.581 116LSA? Will the 200cc runners on the PRCs work better with the smaller, reverse split cam, or will the better midlift #'s on the TFS's produce better results. My main concern is track time/ET, not peak rwhp. Also, I plan to do a Fast 90/90 at the same time.
I would consider AFRs as well, but remember seeing a post where Tony Mamo said that they didn't like reverse split cams.
I would consider AFRs as well, but remember seeing a post where Tony Mamo said that they didn't like reverse split cams.
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I am mulling the same thing over. I am getting ready to install a 232/230 .580 110LSA cam and was debating if the Terminators would be optimal for the reverse split cam I am using along with a ported Fast 90.
#5
Like Beast96z said, I've heard alotta good things about the exhaust port on the Trickflows, but if it's only a matter a few rwhp, then the value of the PRC's come into play. OTOH, I have no problem forking over the extra cash if the more expensive TFS's will hands-down outperform them.....too many choices!
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Originally Posted by N4cer
The Trickflows win on a very important factor: PTV clearance. They are on an 11 degree angle, and sit higher. That's good for big cams.
I would think the Trickflows make more hp over the Terminators just because of the valve angle alone, but both heads made similar power in the dyno section.
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For what its worth, we have used the smaller exhaust valves in LS1 heads for years and they don't seem sensitive to exhasut duration, header diameter, etc. I once had a customer with a LS1 head, 1.55 exhaust valves, and a 230/226 cam. He decided to go dual pattern, he kept the same intake lobe and just changed the exhaust so the new cam was 230/234 and once it was dyno'd and the graphs overlayed they said you could not see a difference anywhere in the power curve, they were identical.
I would think you would see the same results with the TFS head, since it has a smallish 1.57 exhaust valve and smallish exhaust port volume......I have no info on the Terminator head.
I would think you would see the same results with the TFS head, since it has a smallish 1.57 exhaust valve and smallish exhaust port volume......I have no info on the Terminator head.