General Discussion Area > Corvette Related Chat
HELP....my so called performance slug
86er:
I would consider a high 13 or low 14 to be OK for your Vette
77CVT:
--- Quote ---Originally posted by mrvett
ok ok...i went to calder park last night in melb cause thats were mrvett lives. now all i wanted was to run a 13second quarter. all i got though was a 14.02 at 95.32mph.
now i am a little disaponited but i did feel better when my mate geoff reminded me my car didnt do that well on the dyno to begin with..haha
so i reckon it aint bad for a stock 87engine with jst a throttle body, fuel reg, exhaust, and 3.73gear ratio...but i stil want that 13 :b4 ;laugh
--- End quote ---
That's about right. Mine does 13.6 @ 101mph. With those gears you need to make it breathe and you'll nail it easy!
;42
mrvett:
--- Quote ---Originally posted by 87Z51
"straight through mufflers, removed the two pre cats but kept the larger cat in the middle "
Something is wrong.
My original '87 engine 120,000+ miles with no pre cats ,hiflow main cat and eliminators went 14.0 -14.1 with stock 3.07s.
Taking out the main cat dropped it to 13.9.
With a stock TPI and 3.73s I would guess you have no useful revs in 1st and be running out of revs in 3rd across the line.
What cond is your main cat in?
Does the engine rev freely under load?
--- End quote ---
honestly not sure wat cond of main cat is like? engine seems to rev alright, i thought i would run out of revs much quicker
Vette Obsessed:
--- Quote ---Originally posted by Garry Smith
I would consider a high 13 or low 14 to be OK for your Vette
--- End quote ---
I'd agree but with the 3.73's in an auto car I'd expect a little better - maybe consistent 13.XX ET's (with everything else being equal/up to the task).
Is it me or does the MPH look a little low guys?
What was your 60ft time mrvett?
Cameron 77C3:
I'm not up on these beast's but thought I would pass this on.
Some body mention to me that it might be worth checking that main cat. He said that they were known for fouling up. Just food for thought.
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