intake manifold swap
Thread Starter
Melting Slicks
Joined: Jul 2004
Posts: 3,092
Likes: 120
From: orlando florida
St. Jude Donor '15
intake manifold swap
finally decided to put my BBK SSI intake manifold and TB on today. took about 1.5 hours. here's the before. added some length to the small vacuum line to make it much easier to put back on.
Last edited by mrr23; Aug 31, 2015 at 07:54 PM.
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do you have plans to get it tuned/dynoed?... I'm curious to see the gains and if it is prone to heat soak as engine bay temps rise or after multiple runs
Thread Starter
Melting Slicks
Joined: Jul 2004
Posts: 3,092
Likes: 120
From: orlando florida
St. Jude Donor '15
My plan is to dyno in late September to see what the difference is. Heat soak is a non issue. I've monitored the iat temps and compared the bbk air intake to air temps and my friends stock bridge iat temps via hptuners. No difference. Air temps to iat temps were about 10 to 12 degrees higher.
Acct Suspended APR 2026 by request
Joined: Dec 2010
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2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
well your iat sensor looks to be before the intake manifold (unless you moved it after those pics were taken) so that won't really tell you much
Thread Starter
Melting Slicks
Joined: Jul 2004
Posts: 3,092
Likes: 120
From: orlando florida
St. Jude Donor '15
You wondered about heat soak. The bbk air bridge is aluminum. Sitting still, the air temp would rise. As soon as i would start driving, it would drop to just around 10 degrees above ambient temps.
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That's a nice looking intake. Will be interesting to see what the numbers are after the tune.
Drifting
Joined: Oct 2006
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From: Minnesota
I had that manifold before I switched to a FAST. That manifold, as expected, gets really hot. The computer won't pull timing, however, as the IAT sensor is before the manifold. If you're already on the verge of spark knock that manifold will push it over the top, at which point the computer will drop into the low-octane table and pull significant timing. Cold it will out-perform the stock LS1 and LS6 as they advertise.
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