09-23-2014 | #11 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,193
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Re: 350 cu in LT5
Intake, Intake, Intake is the key!
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
09-23-2014 | #12 |
Join Date: Mar 2004
Location: Found Member
Posts: 4,346
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Re: 350 cu in LT5
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Frank Urbo. NCM Lifetime member # 982 Registry Founding # 237 |
09-23-2014 | #13 |
Join Date: Feb 2013
Location: Sacramento
Posts: 21
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Re: 350 cu in LT5
Ok, tell me more about this magical intake. Are you taking about stock intake ported out or custom made sheet metal intake? Mine are already ported, siamesed as well. The plenum has been siamesed and the IH are siamesed and 1" down from the opening. I will open it up a bit more this week. I'll take measurement tomorrow and post it. I was taking measurement earlier but got called by my superior(wife..LOL). I know the injector housing secondary ports are opened up to 35mm. Not sure on the primary. It's has been years since I did the work. I did it back in '07.
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09-23-2014 | #14 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,193
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Re: 350 cu in LT5
Intake runner is too long, plenum volume is too small for the vehicle. Going to a sheetmetal intake is the solution...actually its somewhat already proven with Fastlanes car, the salt flat cars......a destroked LT-5 engine is making 560hp at 9K. Now thats alittle extreme in terms of setup(its using the lotus GT-1 intake) but the concept is there. Coyote motors are making 500rwhp right now...
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
09-23-2014 | #15 |
Join Date: Jun 2005
Location: pittsburgh
Posts: 4,632
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Re: 350 cu in LT5
Kirchoffer made a sheet metal intake as well, looked awesome
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It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B" |
09-23-2014 | #16 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,193
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Re: 350 cu in LT5
and imagine that type of intake with Ron Hanselmans ECM
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
09-24-2014 | #17 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,704
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Re: 350 cu in LT5
You mean a MegaSquirt right?
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
09-24-2014 | #18 |
Join Date: Mar 2004
Location: Found Member
Posts: 4,346
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Re: 350 cu in LT5
The MegaSquirt uses the stock ignition module.
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Frank Urbo. NCM Lifetime member # 982 Registry Founding # 237 |
09-24-2014 | #19 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,193
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Re: 350 cu in LT5
Correct....as I understand it there was a HP gain with the Hanselman ECM.....and not like 2-3hp...if I recall 10-15.
It all adds up..
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
09-24-2014 | #20 |
Join Date: May 2011
Location: Sydney, Australia
Posts: 2,479
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Re: 350 cu in LT5
Lee, I cannot agree with you more. There is no way anyone is ever going to get me to believe that our heads with (2)1.53" Intake valves would not breath as good as a big block with (1)2.10" Intake valve. our only problem is lack of space.
Oh, wait I have the Toledo pro hood. Extra 2.5" of space.
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Robert J. DeMarco [SIGPIC][/SIGPIC] [COLOR=blue]G[/COLOR][COLOR=red]rand[/COLOR] [COLOR=blue]S[/COLOR][COLOR=red]port[/COLOR] Registry Lifetime Member NCM Lifetime Member #2655 Pacecar Registry Member [COLOR=red]ZOOM Charter Member - ZR-1 Owners of Michigan[/COLOR] [COLOR=plum][I]ZR-1[/I] Registry member since 2012 [/COLOR] [COLOR=black]1990 LPE "368" Aerobody ZR-1, Last ZR-1 built by John[/COLOR] 1991 Callaway Aerobody ZR-1, DRM 500 1991 Shinoda Aerobody Spyder, 1998 Pace Car |
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