Converter and gearing help...

n2oracer · 04-30-2008, 12:12 AM

Hey guys. I'm looking for some input on a couple of proposed changes. Here's a rundown of my combo:

BB Chevy 4.375 x 4.000 481"
12.50:1 CR
6.135 rods
990 heads with 2.25/1.88 11/32" valves
bowls blended, short side radius reworked, and chamber unshrouded
flow numbers are for #6 port (bad port) & no pipe on exhaust
.100 72/59
.200 143/113
.300 215/139
.400 261/165
.500 290/186
.600 306/204
.700 323/213
.800 333/216
Howards solid roller 7/4 swap
ADV 314/322
050 276/287
200 187/196
110 LSA/109 int CL
lobe lift .439/.430
valve lift .790/.731
rockers 1.8/1.7
Weiand 4150 Team G with 2" 4500 adapter
opened up on 4150 side(still has some venturi)
#9375 1050cfm Dominator (stock non HP style)
intake has no port work to plenum or runners
Hooker Super Comp headers for G-body
2" x 30" primary
3 1/2" x 10" collector w/ 12" ext
open headers

The engine is in a 84 Regal that weighs 3350# w/ driver. It has stock style bolt on suspension and 29.5" x 10.5" slicks. Trans is a Glide w/ a brake. The converter is a BTE 8" C100+. It goes 5400 against the brake. I don't know flash or shift recovery RPM. Rear gear is a 4.30 .

To date the car has had a best 60' of 1.44 on a good hooking track. The best time has been 6.65/105.1 with a spinning 1.54 60'(POS track). I'm thinking of trying a 4.86 gear and maybe having a new converter built.

What are your opinions.

04-30-2008, 12:12 AM	#1
n2oracer Junior Member Join Date: Feb 2008 Posts: 6 Likes: 0 Liked 0 Times in 0 Posts	Converter and gearing help... Hey guys. I'm looking for some input on a couple of proposed changes. Here's a rundown of my combo: BB Chevy 4.375 x 4.000 481" 12.50:1 CR 6.135 rods 990 heads with 2.25/1.88 11/32" valves bowls blended, short side radius reworked, and chamber unshrouded flow numbers are for #6 port (bad port) & no pipe on exhaust .100 72/59 .200 143/113 .300 215/139 .400 261/165 .500 290/186 .600 306/204 .700 323/213 .800 333/216 Howards solid roller 7/4 swap ADV 314/322 050 276/287 200 187/196 110 LSA/109 int CL lobe lift .439/.430 valve lift .790/.731 rockers 1.8/1.7 Weiand 4150 Team G with 2" 4500 adapter opened up on 4150 side(still has some venturi) #9375 1050cfm Dominator (stock non HP style) intake has no port work to plenum or runners Hooker Super Comp headers for G-body 2" x 30" primary 3 1/2" x 10" collector w/ 12" ext open headers The engine is in a 84 Regal that weighs 3350# w/ driver. It has stock style bolt on suspension and 29.5" x 10.5" slicks. Trans is a Glide w/ a brake. The converter is a BTE 8" C100+. It goes 5400 against the brake. I don't know flash or shift recovery RPM. Rear gear is a 4.30 . To date the car has had a best 60' of 1.44 on a good hooking track. The best time has been 6.65/105.1 with a spinning 1.54 60'(POS track). I'm thinking of trying a 4.86 gear and maybe having a new converter built. What are your opinions.