You are browsing camaro5 
 |
|
12-03-2019, 05:48 AM
|
#1 |
 |
3.73 or 3.23 ?
I have the ZL1 Diff with 3.73 gears. LS3 and a Vortech V3si. With the TH400 the car put down 685RWHP /617 torque. Run a 9.95 at 135 in the 1/4
Building a 416 and going with a Paxton 2200X. Should be around 800rwhp 700+ torque. Debating if the 3.23 gears would be better. Was thinking the extra torque would keep the 60’ and 1/8 mi time close to what I’m running now but pick up on the big end. Also be better for Just driving around. Anybody with experience with running these gears at this horse power? |
|
|
|
12-03-2019, 07:51 AM
|
#2 |
       
|
I'd say stay with the 3.73's and see what rpm you are crossing the line at
__________________
 |
|
|
|
|
12-03-2019, 09:22 AM
|
#3 |
|
Drives: 2010 2SS LS3, 2013 duramax Join Date: Nov 2012
Location: Dover, De
Posts: 1,451
|
I trapped 147 mph crossed the line around 7000rpm top of 3rd with 3.73 and a 4L80(same ratios as th400). 28” tire
__________________
ECS Ysi-B, cam, Tsp 2" longtubes, Squash dual pumps, Id1300s, meth, 4L80e, FTI 3600, ZL1 3.73 diff, BMR suspension, 15" conversion, weld rts mt 275 et street R. 9.6@147mph
|
|
|
|
|
12-03-2019, 02:08 PM
|
#4 |
|
Trouble_SM
Drives: 17' Summit White ZL1 Join Date: Jan 2015
Location: Midlothian, TX
Posts: 449
|
What was the e.t on the 147 trap? I have a 4L80e and zl1 3.73 diff and also trap 147 at about 7k rpm in 3rd at the 1/4 stripe.
__________________
 |
|
|
|
|
12-03-2019, 05:57 PM
|
#5 |
|
Drives: 2010 2SS LS3, 2013 duramax Join Date: Nov 2012
Location: Dover, De
Posts: 1,451
|
9.6 with a 1.5 60’. Had some issues like hitting rev limiter on the 1-2 shift. Played with timing got it to do a 1.4 60’ but it ate part the air filter damaging the blower that pass. I posted on your other thread.
__________________
ECS Ysi-B, cam, Tsp 2" longtubes, Squash dual pumps, Id1300s, meth, 4L80e, FTI 3600, ZL1 3.73 diff, BMR suspension, 15" conversion, weld rts mt 275 et street R. 9.6@147mph
|
|
|
|
|
12-04-2019, 04:04 PM
|
#6 |
|
Writer
Drives: 2010 SS / 1967 Camaro Join Date: May 2009
Location: Chicago, IL
Posts: 7,216
|
I'd think the 3.73 would be better, I'd start with that.
__________________
PROJECT HEAVY CHEVY
Camaro Now: Mods for the Masses Part I | Part II 13.15@106 1.95 | 100% Stock 12.37@112 1.85 | + Kooks Headers/Cats + 20" 555R + CAI + BW TB + UDP + Tune 12.06@113 1.70 | + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune 11.84@115 1.59 | + 3.91s + Race Star 17x7 Fronts 10.90@125 1.47 | + GPI VVT Cam + BW Ported Heads + CD 3800 |
|
|
|
|
12-04-2019, 06:21 PM
|
#7 |
|
|
Thinks for the comments. May stay with the 3.73. But also my try the 3.23 if I find a good deal on a ZL1 3.23 diff.
Like to hear from some one who has a TH400 and 3.23s |
|
|
|
|
12-05-2019, 06:38 AM
|
#8 |
|
Drives: 2010 2SS LS3, 2013 duramax Join Date: Nov 2012
Location: Dover, De
Posts: 1,451
|
Th400 and 4L80 have same 1-3 gear ratios
__________________
ECS Ysi-B, cam, Tsp 2" longtubes, Squash dual pumps, Id1300s, meth, 4L80e, FTI 3600, ZL1 3.73 diff, BMR suspension, 15" conversion, weld rts mt 275 et street R. 9.6@147mph
|
|
|
|
|
12-05-2019, 08:26 AM
|
#9 |
|
|
Bct10985 We are going to be using the same Supercharger. Just different names. What RWHP are you putting down to trap 147?
|
|
|
|
|
12-05-2019, 08:48 AM
|
#10 |
|
Drives: 2010 2SS LS3, 2013 duramax Join Date: Nov 2012
Location: Dover, De
Posts: 1,451
|
Not sure havent been on a dyno since it was a manual and a smaller blower. But im running a 3.15” blower and I think its a 8.25” crank pulley makes around 20lbs up top.
__________________
ECS Ysi-B, cam, Tsp 2" longtubes, Squash dual pumps, Id1300s, meth, 4L80e, FTI 3600, ZL1 3.73 diff, BMR suspension, 15" conversion, weld rts mt 275 et street R. 9.6@147mph
|
|
|
|
|
12-05-2019, 11:31 AM
|
#11 |
|
Writer
Drives: 2010 SS / 1967 Camaro Join Date: May 2009
Location: Chicago, IL
Posts: 7,216
|
Personally I'd be surprised is 3.23s worked better. Usually centrifrugal blowers like RPM, and our cars are also heavy. You'd want to gear such to make the car with your shift points. Ideally you'd go thru the traps at or just past where you make peak HP (best part of your power band).
__________________
PROJECT HEAVY CHEVY
Camaro Now: Mods for the Masses Part I | Part II 13.15@106 1.95 | 100% Stock 12.37@112 1.85 | + Kooks Headers/Cats + 20" 555R + CAI + BW TB + UDP + Tune 12.06@113 1.70 | + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune 11.84@115 1.59 | + 3.91s + Race Star 17x7 Fronts 10.90@125 1.47 | + GPI VVT Cam + BW Ported Heads + CD 3800 |
|
|
|
|
01-06-2020, 11:10 PM
|
#12 |
|
2010 transformer
Drives: 2010 ss camaro Join Date: Nov 2014
Location: Lee's summit mo
Posts: 591
|
I am at 806 hp with 3.23”s I have a five inch pulley on my procharger.
It launch’s hard with very little wheel spin on my 20’s with nitto 555’s
__________________
2010 transformer, vertical doors, 315nt05 rears, pedders supercar coilovers, hotchkis sway bars, links, adjustable, toe bars, bmr poly cradle bushings, 1le control arms, bmr tunnel brace, bmr subframe connectors. Cam 227/239-623-620@114 Mast medium bore heads, sw 1 7/8 headers, cat delete, x pipe, 3" dynomax true duals, fuel rails, fast 102 intake and NW 102 throttle body, catch can, rotofab cai, shifter, raptor custom shift light. Dss drive shaft, 3.91 gears. 492 rwhp
|
|
|
|
|
01-08-2020, 02:22 PM
|
#13 | |
 
|
Quote:
yall also need to consider if you are locking the converter in 3rd as OP will not have that ability causing his trap RPM to be quite a bit higher than yours at the same MPH |
|
|
|
|
|
01-08-2020, 02:29 PM
|
#14 |
|
Drives: 2010 2SS LS3, 2013 duramax Join Date: Nov 2012
Location: Dover, De
Posts: 1,451
|
im not locking my converter
__________________
ECS Ysi-B, cam, Tsp 2" longtubes, Squash dual pumps, Id1300s, meth, 4L80e, FTI 3600, ZL1 3.73 diff, BMR suspension, 15" conversion, weld rts mt 275 et street R. 9.6@147mph
|
|
|
|
|
|
|
|
 |
| Thread Tools | |
|
|
