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04-07-2008
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#11 |
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Join Date: Aug 2005
Location: San Fernando Valley, CA.
Posts: 896
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Re: New Time with Headers
3mph, nice addition. Man I hope I canget some LTs this next year sometime. Just dying to do porting.
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1990 ZR1, 142,000 miles-Black on black 4.09's Haibeck chip, 3"exh, K&N, meth inj. |
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04-08-2008
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#12 |
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Join Date: Oct 2007
Location: lone pine and mammoth lakes ca.
Posts: 544
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Re: New Time with Headers
very nice times for the alt . did you have dr or street tires . what was your launch rpm?did you do aprom change ?
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04-08-2008
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#13 |
Join Date: Jul 2006
Location: Omaha, NE
Posts: 322
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Re: New Time with Headers
Definately a good testimonial for what headers do for this engine...nice times John.
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SteveB '94 ABZ Lucky #13-SOLD |
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04-09-2008
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#14 | |
 
Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,645
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Re: New Time with Headers
Quote:
 Stock 375 motor except for headers?  Tom
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1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
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04-09-2008
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#15 | |
Join Date: Apr 2006
Location: Ideho
Posts: 2,653
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Re: New Time with Headers
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Watson Headers - No Cats (yet) Open Lid w/ K&N Filter Coplon Duct Marc Haibeck Chip w/ Calibration for the headers Flowmaster #17115 Cat Back Exhaust Hurst Short Throw Shifter The 12.532 run was with a launch at about 3500 RPM's, may have been a little higher too, I don't really watch the RPM's as I am trying for good lights. RT's that day (first of the season) were .121, .113 and .116. I usually run about 28 to 30 lbs of air in the front tires, but didn't let any air out as I wasn't really looking for good lights here (just a T&T). I have the Goodyear GS-D3's and I heat them up with a rolling burnout (no water) and 25-26 lbs of air. The car hooked real well with a 60 ft time of 1.928, the best 60' I've had to date. Ryan used NHRA correction factors and this run at sea level calced to a 12.12 @ 116.60
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[I][FONT=Comic Sans MS]John Boyd[/FONT][/I] [I][FONT=Comic Sans MS][SIZE=1]Ideho[/SIZE][/FONT][/I] [FONT=Comic Sans MS][SIZE=1][I]2015 ZL1 [/I][I]Camaro #1121 BLACK/BLACK 6 SPD (540 RWHP)[/I][/SIZE][/FONT] [I][FONT=Comic Sans MS][SIZE=1]1991 ZR-1 #458 [COLOR=red]RED/[/COLOR][COLOR=black]BLACK 72[/COLOR]k miles ([B][COLOR=red]SOLD[/COLOR][/B]) 1991 ZR-1 #473 [COLOR=red]RED/[/COLOR][COLOR=black]BLACK [/COLOR]37k miles ([B][COLOR=red]SOLD[/COLOR][/B])[/SIZE][/FONT][/I] |
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04-09-2008
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#16 |
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Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,645
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Re: New Time with Headers
John, Thanks for the reply!
Okay, not box stock.....but damn man you didn't mention any porting of the top end & checking the cams' timming & adjusting if need be....just, well, just Damn that car is quick!  Stout motor ya got there! 
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1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
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04-09-2008
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#17 | |
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Join Date: Apr 2006
Location: Ideho
Posts: 2,653
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Re: New Time with Headers
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I bracket raced a '70 Camaro for 8 years and watched everyone around me go faster and faster and spend more and more money. All it got them was a car that would eat up their bank accounts. The funny thing was I whipped their *** everytime I pulled to the line with them. They'd come over and we'd talk about how much faster they were and I'd put the money (from the wins) in the bank and they'd just spend more to go even faster and break more stuff.
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[I][FONT=Comic Sans MS]John Boyd[/FONT][/I] [I][FONT=Comic Sans MS][SIZE=1]Ideho[/SIZE][/FONT][/I] [FONT=Comic Sans MS][SIZE=1][I]2015 ZL1 [/I][I]Camaro #1121 BLACK/BLACK 6 SPD (540 RWHP)[/I][/SIZE][/FONT] [I][FONT=Comic Sans MS][SIZE=1]1991 ZR-1 #458 [COLOR=red]RED/[/COLOR][COLOR=black]BLACK 72[/COLOR]k miles ([B][COLOR=red]SOLD[/COLOR][/B]) 1991 ZR-1 #473 [COLOR=red]RED/[/COLOR][COLOR=black]BLACK [/COLOR]37k miles ([B][COLOR=red]SOLD[/COLOR][/B])[/SIZE][/FONT][/I] |
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04-09-2008
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#18 |
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Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,645
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Re: New Time with Headers
Well all I can say is that your skill as a driver shows, and the car ain't too shabby either!
Oh, and I agree 100% with what you wrote in the post above! Almost any sports car is a money pit, how big of a pit just depends upon how fast & quick ya wanna go! I remember this line from somewhere: "Speed secrets, besides military secrets, are the most fleeting secrets in all the world!".....I think it was in a car mag...I think?
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1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
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04-09-2008
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#19 |
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Join Date: Oct 2007
Location: lone pine and mammoth lakes ca.
Posts: 544
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Re: New Time with Headers
I agree about trying to go tooo far power wise , with one exception the porting of the inj and plenum . its a no brainer along with the headers and really completes the car. going any farther gets costly .. i can hardly wait to see what headers do on the callaway . very nice 60ft on street tires by the by . i'll bet you drive the youngsters nuts having their modded cars being slower than you ,these cars still hold their own after all these years.
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04-09-2008
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#20 |
Join Date: Mar 2004
Location: Found Member
Posts: 4,346
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Re: New Time with Headers
Nice times John. Glad too see that you are out enjoying the car !
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Frank Urbo. NCM Lifetime member # 982 Registry Founding # 237 |
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Linear Mode
