Author Topic: Two days on the dyno with Y Block fun?  (Read 6577 times)

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My427stang

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Re: Two days on the dyno with Y Block fun?
« Reply #15 on: November 07, 2024, 07:48:41 AM »
That'll do it.  I have had decent luck with Comp beehives, but have moved away, mostly because customers don't seem to be interested anymore.

I can say that with my Intercomp, I have seen a wide range of pressures in every batch.  Crower was the worst in one of the last sets, PAC generally tighter, and Comp is decent but I check every one and tweak location or get replacements as needed. 
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Ross
Bullock's Power Service, LLC
- 70 Fastback Mustang, 489 cid FE, Victor, SEFI, Erson SFT cam, TKO-600 5 speed, 4.11 9 inch.
- 71 F100 shortbed 4x4, 461 cid FE, headers, Victor Pro-flo EFI, Comp Custom HFT cam, 3.50 9 inch

Joe-JDC

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Re: Two days on the dyno with Y Block fun?
« Reply #16 on: November 26, 2024, 09:52:29 PM »
Spent the morning back on the dyno with the 312Y at Ted Eaton's shop in Lorena, TX.  I changed the valve springs to a new beehive that was rated for 135# on the seat and 384# over the nose at .600" lift.  Pulled cleanly to 6700 rpm and made 458 hp.  Not bad for a street Y that can run on pump gas.  Did a couple of carb spacer changes, and everything worked like it should.  Solid little engine.  It is interesting to look out the back shop door behind the dyno and see something that makes thousands of horsepower.  Space X rocket pad made a long burn this morning and the whole shop vibrated from the thunder.  Cool, clear morning and the sound takes ~40 seconds to reach the shop.  Joe-JDC
Joe-JDC '70GT-500