First bolt-ons for 91 vette?
Safety Car
Joined: Nov 2001
Posts: 3,753
Likes: 191
From: Orange County California
Re: First bolt-ons for 91 vette? (VaderWS6)
I have a 91 vert too:)
The biggest bang for my buck (zero dollars) was advancing the timing to 10 deg from 4 (factory setting is 6) it was like night and day. Other things to do
1)Toss the frisbee (do a search)
2)Free flow exhaust
The L98 is limited in the intake department if you are looking to spend bucks thats the way to go with a intake/headers combo. I just played with gears and the cheap stuff and it is plenty fast. Good luck!!
The biggest bang for my buck (zero dollars) was advancing the timing to 10 deg from 4 (factory setting is 6) it was like night and day. Other things to do
1)Toss the frisbee (do a search)
2)Free flow exhaust
The L98 is limited in the intake department if you are looking to spend bucks thats the way to go with a intake/headers combo. I just played with gears and the cheap stuff and it is plenty fast. Good luck!!
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: First bolt-ons for 91 vette? (VaderWS6)
For around 25 hp gain, try the low cost & "free" mods:
-toss the "frisbee" from the front of your water pump pulley, 10chp
-K&N air filter with cut lid, 10chp
-160deg stat & fan switch, 10chp
-cut-back spark plug ground electrodes (details on my site, see sig.below), 8-10chp
-AFPR for tuning fuel flow at WOT, no chp gain per se, but a vital tuning aid if your doing futher mods.
Indeed your L98 will respong well to the addition of a free flowing exhaust, if your dad will tolerate the increased sound level:
-hi flow cat & cat back
-LT headers or mandrel-bent front Y
These should net you 15-25chp gain, depending on the path chosen.
For results on some other mods to that L98 check out the table on my site.
-toss the "frisbee" from the front of your water pump pulley, 10chp
-K&N air filter with cut lid, 10chp
-160deg stat & fan switch, 10chp
-cut-back spark plug ground electrodes (details on my site, see sig.below), 8-10chp
-AFPR for tuning fuel flow at WOT, no chp gain per se, but a vital tuning aid if your doing futher mods.
Indeed your L98 will respong well to the addition of a free flowing exhaust, if your dad will tolerate the increased sound level:
-hi flow cat & cat back
-LT headers or mandrel-bent front Y
These should net you 15-25chp gain, depending on the path chosen.
For results on some other mods to that L98 check out the table on my site.
