how much pounds of boost can an auto tranny hold?
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how much pounds of boost can an auto tranny hold?
well imma boost my car which is auto but imma manual swap it in the near future but wanted to know how much can the auto handle to have as much fun with as possible.
1995 civic 2dr EX D16 engine bone stock and he was running 7psi. He could have easily tossed some pistons and rods in there, and a torque converter and would be dirty fast for an auto. He was pulling on mustang gt's and GTP's. It was alot of fun. Oh, and he had a tranny cooler, thats a need to have when you boost an auto.
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From: miami, Florida, US
Rep Power: 0 well i wanna run about 7-8 psi on auto with tranny cooler just wondering if that would be fine ill go up most on high boost 9 so if anyone knows auto boost on our cars please speak on it will help me and many others with auto trannys
Boosted Auto
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From: WI NewBerlin
Rep Power: 0 look into www.levelten.com if you wana bost an auto. im buying the upgrade kit soon for my tranny when i get around to ordering my sf turbo. just a temp fix untill i can afford there prebuilt upgraded auto trannty for 3 grand
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overhaul kit, torque converter, tranny cooler and you could run 9-10psi daily. build up your internals and i'd say 12psi daily, but thats when your wanna start doing some sleeving.
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From: NV
Rep Power: 812 Um, yeah. An auto here HAS run 11psi with no probs.
http://www.7thgencivic.com/forums/sh...hreadid=138622
just fyi, you dont need a manual, mine is auto and it purrs. I had it at 11psi one day, racing a stick gsr from a stop(usual bolt ons), he got the jump pretty bad on me, middle of second i roarred passed him, spinning the tires to boot. hit third and foreget about it. But yes, the auto seems to take to the boost no problem, especially at 5psi where i drive with it daily.
Tranny cooler should be coming to my door step next week too 
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Rep Power: 0 Thank you who ever put up the link to level 10 I have been looking for a place to buy an auto tranny rebuild kit. Does anyone on here have a tranny fitted with their rebuild kit.
Boosted Auto
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From: WI NewBerlin
Rep Power: 0 no but i have been reading up on level 10 for a while and they seem to do good work. im ordering my kit in the next month or so when it gets warmer so i can actualy take it appart and work on it
I am the guy who raced the gsr at 11psi.-
I usually keep mine at 5psi (good cold air it will see 6psi, hot crap air, i see about 4.5) with the setting i have.
I use the T air bleeder method to control boost, and thats why its maybe less precise/more affected by weather conditions..
The next setting i usually use is at 10psi (set at day time in the valley), and i have done that a bunch of times, ocassionally hitting 11psi-12psi when im at sea level and night time. I toss in higher %alc for those planned times..
So far, the trans has not skipped a beat, and is NOT SLIPPING at all. At higher boost levels, the trans takes a bit more time to shift, and the timing retard/torque reduction is more noticable at higher psi (remember, this only occurs on shifts), but i think that when i lift (the accelerator) just a touch on shifts, this problem is not a problem and actually i run faster lifting at shifts. (got to take it to the track to know, but i have a good feel for this). And remember, this is with no cats on a full 2.5" exhaust, so the trans is taking some decent power at this boost level.
Lastly, i have a stang too, and in the mustang community, Level 10 is known to stand out for their quality and customer service, among the many many other trans builders who compete in that market. If i was staying boosted, i definately was considering going further with this combo, definately going with a Level 10 trans upgrade.... but alas, baby on the way, means i gotta go stock with the vic, and sell the stang =(, worse yet, my new job is at a highschool, so parking a modded civic is a serious risk-
FWIW, i looked into jmousa, and i was not happy with what they could tell me over the phone, or their prices...
I usually keep mine at 5psi (good cold air it will see 6psi, hot crap air, i see about 4.5) with the setting i have.
I use the T air bleeder method to control boost, and thats why its maybe less precise/more affected by weather conditions..
The next setting i usually use is at 10psi (set at day time in the valley), and i have done that a bunch of times, ocassionally hitting 11psi-12psi when im at sea level and night time. I toss in higher %alc for those planned times..
So far, the trans has not skipped a beat, and is NOT SLIPPING at all. At higher boost levels, the trans takes a bit more time to shift, and the timing retard/torque reduction is more noticable at higher psi (remember, this only occurs on shifts), but i think that when i lift (the accelerator) just a touch on shifts, this problem is not a problem and actually i run faster lifting at shifts. (got to take it to the track to know, but i have a good feel for this). And remember, this is with no cats on a full 2.5" exhaust, so the trans is taking some decent power at this boost level.
Lastly, i have a stang too, and in the mustang community, Level 10 is known to stand out for their quality and customer service, among the many many other trans builders who compete in that market. If i was staying boosted, i definately was considering going further with this combo, definately going with a Level 10 trans upgrade.... but alas, baby on the way, means i gotta go stock with the vic, and sell the stang =(, worse yet, my new job is at a highschool, so parking a modded civic is a serious risk-
FWIW, i looked into jmousa, and i was not happy with what they could tell me over the phone, or their prices...
Update: I have been on 10psi for the past 2 days, and hitting it constantly,,, including 10 full 1/4 mile passes back 2 back one night. The trans is holding fine, and not skipping a beat.
And FYI, i switched from alc. to methanol (in the same SF injection kit) and i feel it was an improvement.
And FYI, i switched from alc. to methanol (in the same SF injection kit) and i feel it was an improvement.
the 10 runs were all at the track, so yes. My times were not that great, b/c of a consistant 2.7sec 60'... most racers know the 60' is everything. It makes so much diff.... that my best et i came from my only 2.63 60' time, and on that run i let off way early in third (i wanted to check the plugs before going further). The .1 i gained in the 60' equated to a .3 sec et reduction even though i let off, compaired to a 2.7 60' where i floored it the entire way. I also took one pass at 5psi, and only lost 1/10 of a sec et, but lost 10mph
From a roll, i kill. its the launch that kills me. FWIW, at 10psi, i pulled an STI in third, but lost to him by .5sec. total et (he killed me off the line, and i could not real him in enough)..
and the final entry on what an auto can take... With methanol, i just made two street passes tonight, at a solid 14psi. Dont try this at home kids. The trans held, and did not slip through the entire rpm band, though the shift was way prolonged, and bounced off the limiter a few twice (i foreget what shifts it happened on). If i lifted a bit on the shifts, it went fine. I can't tell you how it felt, but it was a freaken feight train on steroids. I know the trans took it like a champ, but the real question is, for how long will it continue to take it? Thats not for me to find out-
signing out, with more ***** than brains.
From a roll, i kill. its the launch that kills me. FWIW, at 10psi, i pulled an STI in third, but lost to him by .5sec. total et (he killed me off the line, and i could not real him in enough)..
and the final entry on what an auto can take... With methanol, i just made two street passes tonight, at a solid 14psi. Dont try this at home kids. The trans held, and did not slip through the entire rpm band, though the shift was way prolonged, and bounced off the limiter a few twice (i foreget what shifts it happened on). If i lifted a bit on the shifts, it went fine. I can't tell you how it felt, but it was a freaken feight train on steroids. I know the trans took it like a champ, but the real question is, for how long will it continue to take it? Thats not for me to find out-
signing out, with more ***** than brains.
El Pinche Turbo Mexicano
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From: Monterrey, MEXICO
Rep Power: 0 Originally posted by KingTorq
the 10 runs were all at the track, so yes. My times were not that great, b/c of a consistant 2.7sec 60'... most racers know the 60' is everything. It makes so much diff.... that my best et i came from my only 2.63 60' time, and on that run i let off way early in third (i wanted to check the plugs before going further). The .1 i gained in the 60' equated to a .3 sec et reduction even though i let off, compaired to a 2.7 60' where i floored it the entire way. I also took one pass at 5psi, and only lost 1/10 of a sec et, but lost 10mph
From a roll, i kill. its the launch that kills me. FWIW, at 10psi, i pulled an STI in third, but lost to him by .5sec. total et (he killed me off the line, and i could not real him in enough)..
and the final entry on what an auto can take... With methanol, i just made two street passes tonight, at a solid 14psi. Dont try this at home kids. The trans held, and did not slip through the entire rpm band, though the shift was way prolonged, and bounced off the limiter a few twice (i foreget what shifts it happened on). If i lifted a bit on the shifts, it went fine. I can't tell you how it felt, but it was a freaken feight train on steroids. I know the trans took it like a champ, but the real question is, for how long will it continue to take it? Thats not for me to find out-
signing out, with more ***** than brains.
the 10 runs were all at the track, so yes. My times were not that great, b/c of a consistant 2.7sec 60'... most racers know the 60' is everything. It makes so much diff.... that my best et i came from my only 2.63 60' time, and on that run i let off way early in third (i wanted to check the plugs before going further). The .1 i gained in the 60' equated to a .3 sec et reduction even though i let off, compaired to a 2.7 60' where i floored it the entire way. I also took one pass at 5psi, and only lost 1/10 of a sec et, but lost 10mph
From a roll, i kill. its the launch that kills me. FWIW, at 10psi, i pulled an STI in third, but lost to him by .5sec. total et (he killed me off the line, and i could not real him in enough)..
and the final entry on what an auto can take... With methanol, i just made two street passes tonight, at a solid 14psi. Dont try this at home kids. The trans held, and did not slip through the entire rpm band, though the shift was way prolonged, and bounced off the limiter a few twice (i foreget what shifts it happened on). If i lifted a bit on the shifts, it went fine. I can't tell you how it felt, but it was a freaken feight train on steroids. I know the trans took it like a champ, but the real question is, for how long will it continue to take it? Thats not for me to find out-
signing out, with more ***** than brains.
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