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#11 |
![]() Join Date: Oct 2011
Location: Between Texas & Calif
Posts: 120
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What HP gains can one expect from the modifications above?
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Erv Myers 1990 ZR1 #1964 |
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#12 |
![]() ![]() Join Date: Jun 2005
Location: pittsburgh
Posts: 4,632
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around 30 hp
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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" |
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#13 |
![]() Join Date: Oct 2011
Location: Between Texas & Calif
Posts: 120
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So are we talking just switching out the plenums, keeping the same injectors, etc?
Gain of around 30 hp for stage I? What is the difference of stage I and stage II?
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Erv Myers 1990 ZR1 #1964 |
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#14 |
![]() Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Stage I is I open tops to 36mm and remove bosses from all runners...but the primary starts at 36mm and necks down to 32-33mm stock .
STage II is 36mm all the way through on primary and 2ndry Stage II is approx 30RWHP.....obviusly if the car is not running right, cams mistimed, etc the car is not going to gain HP.... Others charge $2200-$3200 for the same service depending on extras
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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#15 |
![]() Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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One set of IHs roughed out at 35+mm all the way through, the other with bosses removed....will have the whole package done soon and ready for exchange!
Price is 700 + shipping with exchange for porting....PC is $300 extra ![]() ![]()
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 Last edited by LGAFF; 01-27-2012 at 11:03 PM. |
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#16 |
![]() Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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These are the splinters of Aluminum from 1 IH and thats just the top 2-3 inches of the IH ....thats a 35mm fooseball sitting in the mess
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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#17 |
![]() Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Locked up in the house with all the snow...bump
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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#18 |
![]() Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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$400 Stage I 36mm secondary runners/injector bosses removed on primary/2ndry...primaries opened at top to 36mm
$700 Stage II 36mm $1000 Stage II with PC
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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#19 |
Join Date: Oct 2008
Location: Townsend, TN
Posts: 49
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How long do i have to return my originals to you? Also, can you plug the secondaries, as i have the bypass from Haibeck?
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Thomas (looking towards my own LT5 designation :-)) |
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#20 |
![]() Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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The secondaries are in the head so I cannot......typically I do not ship the ported parts until I receive the core and payment.
Thanks Lee
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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