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just got back (1/8 mile track) stock '87 GN
Well guys.... I just got home from my first trip to the local 1/8 mile track with my stock '87 GN. The only thing not stock was a K&N air filter fastened to the end of the stock MAF meter. I do have a Walbro 307 pump I installed when I got it. My car has 140k miles.... stock valve springs.... stock everything including stock catalytic converter. I did have some 26x10.5 ET Streets I mounted out back. Minimal burnout.... launched about 5 psi.... let me know what you think. Boost is stock too..... 12#??? I'm not sure what the stock boost level is....
2.06 60'
9.20 @ 73 in the eighth
O2's ran around 820 mv @ the top of 1st ... and about 775 mv @ the top of second.... no knock.....93 pump gas...
I was hoping for a better 60' .... and a 9 flat or maybe a high 8..... but no dice..... After reading some posts on here tonight.... I should have tried to leave on more boost.... like 10# or something......
I got a ton of mods to do starting this week....didn't want to put anything on until I finally could get to the track to get a baseline.
How do my numbers compare?
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1987 Buick GN
Currently getting freshened up....
Old Parts: 60# injectors, 3" TH DP with test pipe and hooker cat back, Walbro 340 pump, Razor's Alky, TT Chip, 3-1/2" MAF pipe with Big Mouth CA Kit and LS1 MAF, Translator.... yada yada
New parts: Ported heads with stainless valves, RJC FMIC, T&D 1.65 roller rockers, Comp XR2 Hydraulic Roller 210/215@.050 .549/.549 (with 1.65 rockers), champion ported intake, Hemco stock appearing doghouse, PT70 P-trim turbo with H comp. housing, N/A109 block bored .030 over with head studs, main studs #2 and #3 billet main caps, cometics, TRW forged .030 over slugs with hastings moly rings.
New times soon.
(1/8) 8.002 @ 86 mph 12.650 @ 106 mph with a 1.71 60' time with the stock turbo/dutt neck intercooler (best mph was 107.69 mph)
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