3.73 or 4.10??

gr99gt · 07-03-2001, 10:19 AM

I know this is a common question but I would like some opinions on the proper gear for my set-up. I think I put all my mods in my sig so please check it out and let me know. The car will see the 1/4 alot but I want a streetable gear. What RPM will the car be at about 70mph with the two gear sets? Also how much will the 4.10's improve my ET over the 3.73's?
Thanks

------------------
Chrome Yellow 99GT
-Flowmaster DF 40 series mufflers
-Steeda tri-ax shifter
-Steeda sport springs
-Tokico HP shocks/struts

joey50gt · 07-03-2001, 05:41 PM

if you can hookup with your stick than the 4.10's will be about two tenths quicker than the 3.73's . i have 4.10's and i love them there bad *** . You will be at about 2500 rpms with 4.10's at 70mph.

sweet88coupe · 07-04-2001, 01:52 AM

3.73's!!! I have gone a 13.48@105mph on 3.73's alone, that is with the factory 215hp pony under the hood. If you can hook the 3.73's will be the best gear for the street and strip. 4.10's seem to be good for the quarter but they are no good for the street. 3.73's are the perfect in between (2000-2150rpm at 70), but with the 4.6 reving higher I think that the 4.10 would be your best bet at the drags!

9SecLX · 07-04-2001, 01:55 AM

I am running 4.30's in mine but I have 28" tires. Mine runs at about 2400 rpm at at 70 mph.

------------------
88 LX Notch - 302(86 crown Vic- changed to HO), stock cam, ported stock heads, 76mm C&L mass air, 70mm Mac tb and EGR, Victor 5.0 intake(it's killing low end torque

), Walbro 190lph intank fuel pump, 24lb injectors, FT long tube headers, offroad H-pipe, Flowmasters, Compucar NOS kit 125 shot pill, Aod - Art Car shift kit, FMS 430 gears, 28x10.5 M/T Sportman Pro rears(soon on 9" Weld Draglites), Kumho fronts on 4" Weld Draglites.
http://www.indianastangers.com
ICQ# 37309223

red82gt · 07-04-2001, 02:37 AM

Haven't driven a 99+ 4.6 so I don't know how this engine feels torquewise, but since it is smaller and is sewing-machine smooth, I'd go with 410's.

------------------
GT-40 heads (ported, polished, + milled), B303 cam, 1.7rr's, JE pistons, Offy intake, Carter AFB 625cfm carb, Flowtech 1 5/8" shortys, Flowtech X-pipe, MAC Flowpath exhaust, MAC pulleys, 373's, subframes, Eibachs+Tokicos, B&M ripper, FMS Clutch, Zoom Quadrant+cable, 17" CSA Ultra rims, 235/45ZR17 Yokohama AVS S4's, MSD 6A ignition+coil, FMS 9mm wires, Carbed, Naturally Aspirated, and Nasty!

90dpscoupe · 07-04-2001, 03:35 PM

sweet88 how many cars have you rode in with 4.10's? i know 2 guys, one with a 5spd, and one with an auto, they arent to bad at all, also know a guy with 4.30's and he drives it everyday, not a car to drive across tx or anything but i know 4.10's are nice, you really cant go wrong street/strip, but i will say this, my friend went 3.73 to 4.10 and he only ran a little more consistent, but his mph went from 106 to 108 in the 1/4, he's spankin stock c5's and ls1's with stock heads on the car, with e.t. streets of course

------------------
90 lx coupe: 175k miles, steeda water pump pully, hurst shifter, Mac cold air fenderwell, accel supercoil, ADS chip, aluminum D/S, Black magic fan, 3.27grs.
Best time: 13.9116(on 225/60/15 firehawks)
Best mph: 98.17
Best 60': 1.9607

next mods: subframes, mac h-pipe

gr99gt · 07-05-2001, 11:41 AM

The gears will be for my 89GT. I thought it was in my sig but I guess not. The 89GT has:
Cobra intake, E-303 cam, 1.7 rockers, 75mm MAF, 65mm TB, BBK headers and h-pipe, Flowmaster Am. THunder, rebuilt balanced shortblock, TrickFlow valve springs, T-5 w/ Hurst shifter, 190lph pump and adj. regulator, and some other small stuff. I will be running on MT 26x8.5x15 ET drags. Sorry for the mix-up.

------------------
Chrome Yellow 99GT
-Flowmaster DF 40 series mufflers
-Steeda tri-ax shifter
-Steeda sport springs
-Tokico HP shocks/struts

gr99gt · 07-05-2001, 11:46 AM

--trying to fix my sig

gr99gt · 07-05-2001, 11:48 AM

--trying to fix my sig, sorry

------------------
Chrome Yellow 99GT -Flowmaster DF 40 series mufflers, Steeda tri-ax shifter, Steeda sport springs, Tokico HP shocks/struts, K&N w/ cut silencer
Black 89GT -Cobra intake, E-303 cam, 1.7 roller rockers, rebuilt/balanced short block, 75mm Pro-m, 65mm TB, BBK headers, BBK h-pipe, Flowmaster Am.Thunder, TrickFlow valve springs, K&N, 190 pump, adj fuel press regulator, hurst shifter on T5, MT 26x8.5x15 ET Drags, 3.73 or 4.10?

red82gt · 07-05-2001, 02:08 PM

I think for the 5.0 that 373's would be enough, they will still work good if you add a set of heads later.

------------------
GT-40 heads (ported, polished, + milled), B303 cam, 1.7rr's, JE pistons, Offy intake, Carter AFB 625cfm carb, Flowtech 1 5/8" shortys, Flowtech X-pipe, MAC Flowpath exhaust, MAC pulleys, 373's, subframes, Eibachs+Tokicos, B&M ripper, FMS Clutch, Zoom Quadrant+cable, 17" CSA Ultra rims, 235/45ZR17 Yokohama AVS S4's, MSD 6A ignition+coil, FMS 9mm wires, Carbed, Naturally Aspirated, and Nasty!

93CobraR · 07-05-2001, 09:51 PM

It's a 4.6! At least get 4.10's, That motor doesn't make good power till at least 4500 or so. Get the 4.10's and get there faster.

------------------
87 GT, Cobra R's,GT-40 heads,Crane 2031,1.7's, Edelbrock intake, long tubes,BBK cold air, Mass air,pulleys,Pro 5.0, King Cobra,Lakewood Lift Bars,50/50's,subframes, 4.10's.
Best time 12.759
Best MPH 106.79
Best 60' 1.695

Visit my site at:
http://www.geocities.com/cobrar93_2000/MyPage.html

red82gt · 07-05-2001, 10:36 PM

Quote:

Originally posted by 93CobraR:
It's a 4.6! At least get 4.10's, That motor doesn't make good power till at least 4500 or so. Get the 4.10's and get there faster.

He just said two posts ago that they are for his 89 GT, not his 99 GT!

93CobraR · 07-05-2001, 10:49 PM

Sorry, didn't read them all. Still I would get the 4.10's for the 89. I have them in my 87 and love them. I haven't heard any complaints about the 4.10's yet, just the 3.73's.

07-03-2001, 10:19 AM	#1
gr99gt Registered Member Join Date: Jan 2001 Location: Austin, TX, USA Posts: 16	3.73 or 4.10?? I know this is a common question but I would like some opinions on the proper gear for my set-up. I think I put all my mods in my sig so please check it out and let me know. The car will see the 1/4 alot but I want a streetable gear. What RPM will the car be at about 70mph with the two gear sets? Also how much will the 4.10's improve my ET over the 3.73's? Thanks ------------------ Chrome Yellow 99GT -Flowmaster DF 40 series mufflers -Steeda tri-ax shifter -Steeda sport springs -Tokico HP shocks/struts

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07-03-2001, 05:41 PM	#2
joey50gt Registered Member Join Date: Jan 2001 Location: hurst,texas,america Posts: 95	if you can hookup with your stick than the 4.10's will be about two tenths quicker than the 3.73's . i have 4.10's and i love them there bad *** . You will be at about 2500 rpms with 4.10's at 70mph.

07-04-2001, 01:52 AM	#3
sweet88coupe Registered Member Join Date: Jul 2001 Location: westville, fl 32464 Posts: 10	3.73's!!! I have gone a 13.48@105mph on 3.73's alone, that is with the factory 215hp pony under the hood. If you can hook the 3.73's will be the best gear for the street and strip. 4.10's seem to be good for the quarter but they are no good for the street. 3.73's are the perfect in between (2000-2150rpm at 70), but with the 4.6 reving higher I think that the 4.10 would be your best bet at the drags!

07-04-2001, 01:55 AM	#4
9SecLX Registered Member Join Date: Feb 2001 Location: Lafayette,IN USA Posts: 18	I am running 4.30's in mine but I have 28" tires. Mine runs at about 2400 rpm at at 70 mph. ------------------ 88 LX Notch - 302(86 crown Vic- changed to HO), stock cam, ported stock heads, 76mm C&L mass air, 70mm Mac tb and EGR, Victor 5.0 intake(it's killing low end torque ), Walbro 190lph intank fuel pump, 24lb injectors, FT long tube headers, offroad H-pipe, Flowmasters, Compucar NOS kit 125 shot pill, Aod - Art Car shift kit, FMS 430 gears, 28x10.5 M/T Sportman Pro rears(soon on 9" Weld Draglites), Kumho fronts on 4" Weld Draglites. http://www.indianastangers.com ICQ# 37309223

07-04-2001, 02:37 AM	#5
red82gt Sober voice of Reason Join Date: Nov 1998 Location: Kelowna, B.C., Canada Posts: 1,514	Haven't driven a 99+ 4.6 so I don't know how this engine feels torquewise, but since it is smaller and is sewing-machine smooth, I'd go with 410's. ------------------ GT-40 heads (ported, polished, + milled), B303 cam, 1.7rr's, JE pistons, Offy intake, Carter AFB 625cfm carb, Flowtech 1 5/8" shortys, Flowtech X-pipe, MAC Flowpath exhaust, MAC pulleys, 373's, subframes, Eibachs+Tokicos, B&M ripper, FMS Clutch, Zoom Quadrant+cable, 17" CSA Ultra rims, 235/45ZR17 Yokohama AVS S4's, MSD 6A ignition+coil, FMS 9mm wires, Carbed, Naturally Aspirated, and Nasty!

07-04-2001, 03:35 PM	#6
90dpscoupe Registered Member Join Date: Jun 2000 Location: sanantonio, Tx, usa Posts: 1,407	sweet88 how many cars have you rode in with 4.10's? i know 2 guys, one with a 5spd, and one with an auto, they arent to bad at all, also know a guy with 4.30's and he drives it everyday, not a car to drive across tx or anything but i know 4.10's are nice, you really cant go wrong street/strip, but i will say this, my friend went 3.73 to 4.10 and he only ran a little more consistent, but his mph went from 106 to 108 in the 1/4, he's spankin stock c5's and ls1's with stock heads on the car, with e.t. streets of course ------------------ 90 lx coupe: 175k miles, steeda water pump pully, hurst shifter, Mac cold air fenderwell, accel supercoil, ADS chip, aluminum D/S, Black magic fan, 3.27grs. Best time: 13.9116(on 225/60/15 firehawks) Best mph: 98.17 Best 60': 1.9607 next mods: subframes, mac h-pipe

07-05-2001, 11:41 AM	#7
gr99gt Registered Member Join Date: Jan 2001 Location: Austin, TX, USA Posts: 16	The gears will be for my 89GT. I thought it was in my sig but I guess not. The 89GT has: Cobra intake, E-303 cam, 1.7 rockers, 75mm MAF, 65mm TB, BBK headers and h-pipe, Flowmaster Am. THunder, rebuilt balanced shortblock, TrickFlow valve springs, T-5 w/ Hurst shifter, 190lph pump and adj. regulator, and some other small stuff. I will be running on MT 26x8.5x15 ET drags. Sorry for the mix-up. ------------------ Chrome Yellow 99GT -Flowmaster DF 40 series mufflers -Steeda tri-ax shifter -Steeda sport springs -Tokico HP shocks/struts

07-05-2001, 11:46 AM	#8
gr99gt Registered Member Join Date: Jan 2001 Location: Austin, TX, USA Posts: 16	--trying to fix my sig

07-05-2001, 11:48 AM	#9
gr99gt Registered Member Join Date: Jan 2001 Location: Austin, TX, USA Posts: 16	--trying to fix my sig, sorry ------------------ Chrome Yellow 99GT -Flowmaster DF 40 series mufflers, Steeda tri-ax shifter, Steeda sport springs, Tokico HP shocks/struts, K&N w/ cut silencer Black 89GT -Cobra intake, E-303 cam, 1.7 roller rockers, rebuilt/balanced short block, 75mm Pro-m, 65mm TB, BBK headers, BBK h-pipe, Flowmaster Am.Thunder, TrickFlow valve springs, K&N, 190 pump, adj fuel press regulator, hurst shifter on T5, MT 26x8.5x15 ET Drags, 3.73 or 4.10?

07-05-2001, 02:08 PM	#10
red82gt Sober voice of Reason Join Date: Nov 1998 Location: Kelowna, B.C., Canada Posts: 1,514	I think for the 5.0 that 373's would be enough, they will still work good if you add a set of heads later. ------------------ GT-40 heads (ported, polished, + milled), B303 cam, 1.7rr's, JE pistons, Offy intake, Carter AFB 625cfm carb, Flowtech 1 5/8" shortys, Flowtech X-pipe, MAC Flowpath exhaust, MAC pulleys, 373's, subframes, Eibachs+Tokicos, B&M ripper, FMS Clutch, Zoom Quadrant+cable, 17" CSA Ultra rims, 235/45ZR17 Yokohama AVS S4's, MSD 6A ignition+coil, FMS 9mm wires, Carbed, Naturally Aspirated, and Nasty!

07-05-2001, 09:51 PM	#11
93CobraR Registered Member Join Date: Oct 1999 Location: Cincinnati, Ohio Posts: 1,575	It's a 4.6! At least get 4.10's, That motor doesn't make good power till at least 4500 or so. Get the 4.10's and get there faster. ------------------ 87 GT, Cobra R's,GT-40 heads,Crane 2031,1.7's, Edelbrock intake, long tubes,BBK cold air, Mass air,pulleys,Pro 5.0, King Cobra,Lakewood Lift Bars,50/50's,subframes, 4.10's. Best time 12.759 Best MPH 106.79 Best 60' 1.695 Visit my site at: http://www.geocities.com/cobrar93_2000/MyPage.html

07-05-2001, 10:49 PM	#13
93CobraR Registered Member Join Date: Oct 1999 Location: Cincinnati, Ohio Posts: 1,575	Sorry, didn't read them all. Still I would get the 4.10's for the 89. I have them in my 87 and love them. I haven't heard any complaints about the 4.10's yet, just the 3.73's.