Installing Torque Convertor and EDFC at SRT
07-14-04, 09:28 PM
#17
Lexus Test Driver
Join Date: Jun 2002
Location: California
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Originally posted by DGOT20s
Sounds nice Drew, glad you decided to stick with the good ole GS boys. Off the top of my head, I would say Mo recommended you not get the 3.76 Gears due to your 17" wheels. That is a drastic reduction in gearing to maintain the same sized tires. As Future noted, he has higher cruising revs with 18" wheels so just imagine with your 17s. It would probably be about 400-500rpm higher in the rev range when crusing.
Now why he didnt reccomend the TRD unit with the stock 3.32(thats is right?) gearing, I dont know.
I really want the 3.76 gears to replace some the snap i lost with my 20s! Although the forged wheel is lightweight (comparitively) it still doesnt compensate for the taller gearing of the increased overall diameter.
Sounds nice Drew, glad you decided to stick with the good ole GS boys. Off the top of my head, I would say Mo recommended you not get the 3.76 Gears due to your 17" wheels. That is a drastic reduction in gearing to maintain the same sized tires. As Future noted, he has higher cruising revs with 18" wheels so just imagine with your 17s. It would probably be about 400-500rpm higher in the rev range when crusing.
Now why he didnt reccomend the TRD unit with the stock 3.32(thats is right?) gearing, I dont know.
I really want the 3.76 gears to replace some the snap i lost with my 20s! Although the forged wheel is lightweight (comparitively) it still doesnt compensate for the taller gearing of the increased overall diameter.
Yeah, for you guys running dubs, the 3.76 would REALLY help a lot! I believe stock is 3.27 to 1.
BTW, the added RPM is approximately 300 or so higher with the LSD depending on speed. At 80 mph, I am turning right about 3,000 rpm now. Right in the power band though, I can move from 80 to 100 with NO downshift really quickly!
07-14-04, 09:32 PM
#18
Former Sponsor
Originally posted by FutureGS400
Actually, regardless of wheel diameter, you could have the same O.D. (outside diameter) with 16, 17 ,18 or even 19 inch wheels IF you choose the tire size carefully. With 20s it's a different story because even with the "right" size tires, you are still an inch or more taller than stock. Add in the heavier weight of the wheel (and the tires) AND the fact that the added weight is farther from the hub center (added inertia) and it does hurt acceleration.
Yeah, for you guys running dubs, the 3.76 would REALLY help a lot! I believe stock is 3.27 to 1.
BTW, the added RPM is approximately 300 or so higher with the LSD depending on speed. At 80 mph, I am turning right about 3,000 rpm now. Right in the power band though, I can move from 80 to 100 with NO downshift really quickly!
Actually, regardless of wheel diameter, you could have the same O.D. (outside diameter) with 16, 17 ,18 or even 19 inch wheels IF you choose the tire size carefully. With 20s it's a different story because even with the "right" size tires, you are still an inch or more taller than stock. Add in the heavier weight of the wheel (and the tires) AND the fact that the added weight is farther from the hub center (added inertia) and it does hurt acceleration.
Yeah, for you guys running dubs, the 3.76 would REALLY help a lot! I believe stock is 3.27 to 1.
BTW, the added RPM is approximately 300 or so higher with the LSD depending on speed. At 80 mph, I am turning right about 3,000 rpm now. Right in the power band though, I can move from 80 to 100 with NO downshift really quickly!
07-14-04, 09:41 PM
#19
A new rear end is something that I really want to do in the near future..
It's almost night and day when I go from stocks to my 20's and I notice how slow my car is at take off...I hope when I get the rear end I will notice an improvement in my acceleration...
It's almost night and day when I go from stocks to my 20's and I notice how slow my car is at take off...I hope when I get the rear end I will notice an improvement in my acceleration...
07-15-04, 12:04 AM
#20
Originally posted by DGOT20s
Damn you Cali guys with that EOS sig, there are so many posts here from you all, that its slowing the server down! LOL
Damn you Cali guys with that EOS sig, there are so many posts here from you all, that its slowing the server down! LOL
more info to comebut yes, unless you have 19s with fat or 20s, your overall diameter would be the same. however, say you get a super heavy *** 18s, your accel can just be as slow as my 20s, if not more
07-15-04, 01:14 AM
#22
Take two cars with the following mods: TC, LSD, Intake, Exhaust, then dyno them within 10 HP / TQ of each other. The only significant difference will be that one car has the 3.76 LSD and the other has a stock geared LSD. The 3.76 car will "consistently" be faster from zero to 100+ mph and everything in between.
Won't say who's cars they were, but let's just say the sources are reliable.
Not to rub it in, but the 3.76 geared car also weighed about 200 lbs more (ice + bodykit) and had heavy a$$ 19 rims vs. superlight 18" rims.
Won't say who's cars they were, but let's just say the sources are reliable.
Not to rub it in, but the 3.76 geared car also weighed about 200 lbs more (ice + bodykit) and had heavy a$$ 19 rims vs. superlight 18" rims.
Last edited by RMMGS4; 07-15-04 at 01:17 AM.
07-15-04, 01:25 AM
#23
Originally posted by RMMGS4
Take two cars with the following mods: TC, LSD, Intake, Exhaust, then dyno them within 10 HP / TQ of each other. The only significant difference will be that one car has the 3.76 LSD and the other has a stock geared LSD. The 3.76 car will "consistently" be faster from zero to 100+ mph and everything in between.
Won't say who's cars they were, but let's just say the sources are reliable.
Not to rub it in, but the 3.76 geared car also weighed about 200 lbs more (ice + bodykit) and had heavy a$$ 19 rims vs. superlight 18" rims.
Take two cars with the following mods: TC, LSD, Intake, Exhaust, then dyno them within 10 HP / TQ of each other. The only significant difference will be that one car has the 3.76 LSD and the other has a stock geared LSD. The 3.76 car will "consistently" be faster from zero to 100+ mph and everything in between.
Won't say who's cars they were, but let's just say the sources are reliable.
Not to rub it in, but the 3.76 geared car also weighed about 200 lbs more (ice + bodykit) and had heavy a$$ 19 rims vs. superlight 18" rims.
lsd doesn't show up on the dyno results anyway
07-15-04, 01:31 AM
#24
Originally posted by rominl
you can almost make it as clear as you can about the comparisons man.... so mean....
you can almost make it as clear as you can about the comparisons man.... so mean....
Originally posted by rominl
lsd doesn't show up on the dyno results anyway
lsd doesn't show up on the dyno results anyway
07-15-04, 01:33 AM
#25
Originally posted by DGOT20s
Damn you Cali guys with that EOS sig, there are so many posts here from you all, that its slowing the server down! LOL
Damn you Cali guys with that EOS sig, there are so many posts here from you all, that its slowing the server down! LOL
D, wait till you see the more elaborate sigs we will change over to in about a month. We could probably shut down the server all together ! J/K
07-15-04, 02:02 AM
#26
Originally posted by RMMGS4
HA HA, Let's wait to see if / when the "other" car owner will chime in here.
That's exactly my point. HP/TQ ain't the only thing to go by. TC and LSD changes show no gain in HP / TQ, but yet these mods are good for a 0 to 60 improvement of about 5 to 7 tenths faster than stock.
HA HA, Let's wait to see if / when the "other" car owner will chime in here.
That's exactly my point. HP/TQ ain't the only thing to go by. TC and LSD changes show no gain in HP / TQ, but yet these mods are good for a 0 to 60 improvement of about 5 to 7 tenths faster than stock.
07-15-04, 02:27 AM
#27
Originally posted by rominl
yup, and also the valva body upgrade isn't something you can measure too
yup, and also the valva body upgrade isn't something you can measure too
Leave the measurements of my "valva body" outta this or you could get banned !
johnee78, " A new rear end is something that I really want " yer pushin it too.
Last edited by RMMGS4; 07-15-04 at 02:28 AM.
07-15-04, 06:14 AM
#28
Former Sponsor
Originally posted by RMMGS4
Hey !
Leave the measurements of my "valva body" outta this or you could get banned !
johnee78, " A new rear end is something that I really want " yer pushin it too.
Hey !
Leave the measurements of my "valva body" outta this or you could get banned !
johnee78, " A new rear end is something that I really want " yer pushin it too.
Johnee78- When I had my 96, I spoke to a Lexus tech while at the dealership one day and I THINK he told me that the rear end could be swapped with a SC300 because the coupe has shorter gearing. Maybe something you could look into. Although you would not have LSD, the overall acceleration would probably be much improved. Its funny but on my GS300, I didnt feel the diff as much, the car was such a smooth accelerator anyway. But when I put 20s on the GS400 I could feel the diff instantly, I could feel the change in gearing affecting the kickdown points of the tranny!!
07-15-04, 06:53 AM
#30
Originally posted by DGOT20s
LOL Good one RMM.
Johnee78- When I had my 96, I spoke to a Lexus tech while at the dealership one day and I THINK he told me that the rear end could be swapped with a SC300 because the coupe has shorter gearing. Maybe something you could look into. Although you would not have LSD, the overall acceleration would probably be much improved. Its funny but on my GS300, I didnt feel the diff as much, the car was such a smooth accelerator anyway. But when I put 20s on the GS400 I could feel the diff instantly, I could feel the change in gearing affecting the kickdown points of the tranny!!
LOL Good one RMM.
Johnee78- When I had my 96, I spoke to a Lexus tech while at the dealership one day and I THINK he told me that the rear end could be swapped with a SC300 because the coupe has shorter gearing. Maybe something you could look into. Although you would not have LSD, the overall acceleration would probably be much improved. Its funny but on my GS300, I didnt feel the diff as much, the car was such a smooth accelerator anyway. But when I put 20s on the GS400 I could feel the diff instantly, I could feel the change in gearing affecting the kickdown points of the tranny!!