Search found 68 matches

by Numbah1
Fri Dec 11, 2020 12:41 pm
Forum: Drivetrain tech
Topic: Anyone have b4/aftr 3.27 ET
Replies: 8
Views: 808

Re: Anyone have b4/aftr 3.27 ET

My cars on a 1 inch smaller tire and is shifting like 150ish feet before the line. Tried low and instead of blowing up it shifted. I trap at 105 and in 4th thats like 4400 rpm lol stock dyno sheets look flat from 4.2-5k anyway. I primarily race 1/8, im at 4500 at the end there too so it just sucks. ...
by Numbah1
Mon Nov 30, 2020 1:25 am
Forum: Drivetrain tech
Topic: Anyone have b4/aftr 3.27 ET
Replies: 8
Views: 808

Re: Anyone have b4/aftr 3.27 ET

Why? Everyone says it marginal between 3.27 & 3.45 but never have data for 2.92 vs either
by Numbah1
Sun Nov 22, 2020 12:20 pm
Forum: Drivetrain tech
Topic: Anyone have b4/aftr 3.27 ET
Replies: 8
Views: 808

Anyone have b4/aftr 3.27 ET

In the spring ill get a 3.27 but id like to know what to expect for lowering ET. If i have to go thru all 106 topics to find a before & after time slip i will. Seen on the fb page someone said .2 lower but i cant find that comment now
by Numbah1
Sun Oct 25, 2020 1:45 am
Forum: Intake/Exhaust/Fuel tech
Topic: 2.5 vs 2.25 diameter exhaust
Replies: 27
Views: 4920

Re: 2.5 vs 2.25 diameter exhaust

I put a 2.5 x pipe on after the JBA connection pipes and took an L99 Vert Camaro system into the muffler shop, i used square stock from work and hose clamps to wedge the butterfly valve in the bends around the diff on with same 2.5 cutouts and stock mufflers,,, Didnt go any faster, sounds better tho...
by Numbah1
Sun Oct 25, 2020 1:07 am
Forum: Track Talkin'
Topic: 1/8 Mile E/t's
Replies: 12
Views: 19413

Re: 1/8 Mile E/t's

Another 1/4 track day! Tried a couple different things today. I had my 2.25 x pipe and 2" stock pipe replaced for 2.5 x & Camaro exhaust. I did wedge the butterfly valves open. I was also messing with drive vs low. My MPHs are well in range of 6k RPM but the car shifts like 90 feet b4 the line Cutou...
by Numbah1
Sun Oct 11, 2020 9:17 am
Forum: Intake/Exhaust/Fuel tech
Topic: AFM Disabler
Replies: 3
Views: 724

Re: AFM Disabler

Ive been running it all year, best to get a used 1 for 1/2 price imo
by Numbah1
Sat Oct 10, 2020 12:23 am
Forum: Intake/Exhaust/Fuel tech
Topic: 2.5 vs 2.25 diameter exhaust
Replies: 27
Views: 4920

Re: 2.5 vs 2.25 diameter exhaust

20201009_192112.jpg
20201009_192112.jpg (2.72 MiB) Viewed 966 times


Yea!! The up bend after the x pipe that clears that super thin cross brace measures 1.98 OD on mine too. Im on the hunt for camaro exhaust now. 2.25 my ass
by Numbah1
Thu Oct 08, 2020 12:31 am
Forum: Intake/Exhaust/Fuel tech
Topic: 2.5 vs 2.25 diameter exhaust
Replies: 27
Views: 4920

Re: 2.5 vs 2.25 diameter exhaust

received_579131092733216.jpeg
received_579131092733216.jpeg (259.01 KiB) Viewed 991 times


What ever these are, are they restrictive??
by Numbah1
Wed Oct 07, 2020 1:06 am
Forum: Intake/Exhaust/Fuel tech
Topic: 2.5 vs 2.25 diameter exhaust
Replies: 27
Views: 4920

Re: 2.5 vs 2.25 diameter exhaust

Not stock cats, i have the JBA catted connection pipes. They meet the 3 inch primary off the header and at some point come down to 2.5 inch. I still have the pup cats on near the diff though
by Numbah1
Mon Oct 05, 2020 1:54 am
Forum: Intake/Exhaust/Fuel tech
Topic: 2.5 vs 2.25 diameter exhaust
Replies: 27
Views: 4920

Re: 2.5 vs 2.25 diameter exhaust

So i ran 13.57 thru the mufflers and a 13.45 thru the cutouts. I thought the difference would be bigger. Maybe the exhaust is to small b4 the mufflers