How much horsepower over stock can the Z's Auto tranny handle?
03-08-2008, 06:49 PM
#1
Banned
Thread Starter
iTrader: (2)
Join Date: Apr 2007
Location: Atlanta
Posts: 2,545
Likes: 0
Received 0 Likes
on
0 Posts
How much horsepower over stock can the Z's Auto tranny handle?
Just wondering, i know most honduhs wont handle much more than 20% over stock or so, so what do you think the average horsepower could the auto tranny take on a daily basis? And the max? Ive heard 350-500, can anyone nail it down for me?
Last edited by DaytonaRoadster; 03-08-2008 at 06:53 PM.
03-09-2008, 01:03 AM
#2
Registered User
Join Date: Oct 2003
Location: Marietta, Georgia
Posts: 984
Likes: 0
Received 0 Likes
on
0 Posts
Automatic transmission are all rated by torque limits for 100,000 shift cycles.
The Jatco RE5 is rated at 333 lb/ft. BUT this assume oem engine torque control during shift by timing reduction [advance goes to zero then ramps back up to 20].
The Jatco RE5 is rated at 333 lb/ft. BUT this assume oem engine torque control during shift by timing reduction [advance goes to zero then ramps back up to 20].
03-09-2008, 07:14 PM
#5
Banned
Thread Starter
iTrader: (2)
Join Date: Apr 2007
Location: Atlanta
Posts: 2,545
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Sharif@Forged
350-400whp and whp/lbft is easily managable. We are looking for a local subjet to test out our new FP valve body upgrade Interested? 
03-10-2008, 05:08 AM
#6
Banned
iTrader: (21)
Join Date: Dec 2003
Location: Florida
Posts: 4,472
Likes: 0
Received 0 Likes
on
0 Posts
I should have my built motor running soon. I will have a 500whp(not sure on tq#) street tune for DD so I'll let you know how it holds up. I do have some tranny mods but not a completely built tranny.
Sharif, PM me if you want me to try your VB.
Sharif, PM me if you want me to try your VB.
03-10-2008, 09:11 AM
#7
Registered User
Join Date: Oct 2003
Location: Marietta, Georgia
Posts: 984
Likes: 0
Received 0 Likes
on
0 Posts
Convert HP to torque by multipling by 5252/rpm...........500 hp at 6500 5252/6500= 0.808 or 404 lb/ft obviously in excess of oem rating of 333.
412 flywheel HP at 6500 or about 330 rear wheel HP would seem to be ok for a lesser while.
Really depends on ratio of WOT vs lower load shifts.
412 flywheel HP at 6500 or about 330 rear wheel HP would seem to be ok for a lesser while.
Really depends on ratio of WOT vs lower load shifts.
Trending Topics
03-10-2008, 10:35 AM
#8
Banned
iTrader: (21)
Join Date: Dec 2003
Location: Florida
Posts: 4,472
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Q45tech
Convert HP to torque by multipling by 5252/rpm...........500 hp at 6500 5252/6500= 0.808 or 404 lb/ft obviously in excess of oem rating of 333.
412 flywheel HP at 6500 or about 330 rear wheel HP would seem to be ok for a lesser while.
Really depends on ratio of WOT vs lower load shifts.
412 flywheel HP at 6500 or about 330 rear wheel HP would seem to be ok for a lesser while.
Really depends on ratio of WOT vs lower load shifts.
Last edited by coachk; 03-10-2008 at 03:59 PM.
04-30-2016, 12:19 AM
#9
Registered User
did anyone try this guys VB? Im looking to push 400-500 on this automatic and am thinking my trannys gunna need help... any info helps NVM... seems they are both Banned for some reason...
Last edited by StarkdrivenZ33; 04-30-2016 at 12:21 AM.
04-30-2016, 01:13 PM
#11
valve body
transgo valve body upgrade worked well for my vortech at 377 rwhp...switched to a fully built IPT with TQ converter, deeper pan and 40 row cooler for my TT setup.
05-15-2016, 01:05 PM
#13
VB
The transgo valve body modification kit REALLY helped at 400 rwhp, and gave hard, quick shifts, thus saving slippage and clutch paks.... 500 rwhp is probably going to need a fully built transmission from IPT, SFR or some other company utilizing more clutch paks. Possibly a new TQ converter as well.
Every now and then a built trans comes up on the want ads...check there....usually 2500-3500 used.....a new one is minimum $3500 (SFR) and up to 5000 with TQ converter (IPT)....Ask me how I know.
Every now and then a built trans comes up on the want ads...check there....usually 2500-3500 used.....a new one is minimum $3500 (SFR) and up to 5000 with TQ converter (IPT)....Ask me how I know.
Thread
Thread Starter
Forum
Replies
Last Post
350Z_Al
Exterior & Interior
133
10-29-2020 07:44 PM
