General Discussion Area > Corvette Related Chat

HELP....my so called performance slug

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86er:
I think that a discussion day like the one suggested would be great, it wpould allow us all to get more familiar with the car we own & share experiences etc
Should it be raised at the next meeting as it could be a regular thing?

mrvett:

--- Quote ---Originally posted by SC
yes we are off track again
mrvett have you done a comp test and what are the results as i am curious
you never said how many km/miles are on the clock
--- End quote ---


havnt done a comp test...118,000mile on clock

mrvett:

--- Quote ---Originally posted by BOSCHVETTE
what colour is the car ?
it must not be red,cause red ones go faster,

you could understand if it was a banana coloured rat powered vette and it lacked grunt.
(sorry can not help myself);43;43;43;43;43
--- End quote ---


boshie it is red but jst a red pig in fact ;41

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

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?

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