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Pontiac - Boost Turbo, supercharged, Nitrous, EFI & other Power Adders discussed here. |
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#1
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Over the counter forged piston at 10lbs of boost?
I am getting ready to put together a 400 with a non intercooled 6-71 for my '33 Ford. My other blown Pontiac has a set of custom pistons with a thick top ring land. If I use the forged pistons that come with the Summit kit, will they live at 10#s of boost at 9.0:1 with an aluminum head?
Thanks, -Abone.
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Daily Driver Model A Ford. 389 Pontiac w/6-71. 10.80 @129.5 1933, 1934, 1936 and 1940 Fords, also Pontiac powered. |
#2
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Here is the engine mocked up.
And the car totally mocked up ready to come apart for finish assembly. -Abone.
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Daily Driver Model A Ford. 389 Pontiac w/6-71. 10.80 @129.5 1933, 1934, 1936 and 1940 Fords, also Pontiac powered. |
#3
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i have no piston input but that ford is damn fine looking
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1969 carousel red firebird 455, richmond 5 speed 1964 540 gto 1971 lemans sport convertible 1972 Maverick under slow construction |
#4
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I ran TRW forged piston on my first blower engine for a long, long time with no problems........6-10 lbs of boost.
GTO George |
#5
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I'm using Icon pistons with 10* of boost with no problems.
Gona spray it this summer too, That should be fun.LOL |
#6
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Thanks, guys. The little car is just going to be a driver and won't see a lot of abuse. I just like to worry about stuff.
Thanks, -Abone.
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Daily Driver Model A Ford. 389 Pontiac w/6-71. 10.80 @129.5 1933, 1934, 1936 and 1940 Fords, also Pontiac powered. |
#7
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Just be careful with your tune if the pistons have oil return slots instead of oil return holes in the bottom ring groove, it doesn't take much detonation to crush this type of piston.
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#8
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Im running speed pro's for 13 years now without issue. You will need to run a wider ring end gap. I would check with the piston manufacture. If I remember right I ran .024 on the compression rings.
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