Built 5 AT speed force racing
06-17-2014, 12:03 PM
#4
I don't know jack about FI, but per SFR's website they say it CAN hold 750 WHP...I dunno if anyone's tested it.
http://speedforceracing.com/index.php?productID=883
http://speedforceracing.com/index.php?productID=883
06-17-2014, 07:43 PM
#6
I don't know jack about FI, but per SFR's website they say it CAN hold 750 WHP...I dunno if anyone's tested it.
http://speedforceracing.com/index.php?productID=883
http://speedforceracing.com/index.php?productID=883
Last edited by RudeG_v2.0; 06-17-2014 at 07:55 PM.
06-17-2014, 07:53 PM
#7
After a very long hiatus, I'll finally resume my car project in a few months and have decided to keep my built 5AT and enjoy the car at 500-500whp until I can afford the trans swap to push it beyond 700whp.
Last edited by RudeG_v2.0; 06-17-2014 at 08:02 PM.
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06-17-2014, 11:31 PM
#8
Yep. The only people I've seen with built 5AT's that enjoyed decent longevity were guys who didn't exceed 500-550whp. rcdash and mrg1981 are good examples that quickly come to mind.
After a very long hiatus, I'll finally resume my car project in a few months and have decided to keep my built 5AT and enjoy the car at 500-500whp until I can afford the trans swap to push it beyond 700whp.
After a very long hiatus, I'll finally resume my car project in a few months and have decided to keep my built 5AT and enjoy the car at 500-500whp until I can afford the trans swap to push it beyond 700whp.
Mine's running, with some leaks and fuel system issues that are getting fixed.
Shoulder's shot (got my mri today) which explains why every time in the past 5ish years I went to wrench on anything my arm hurts/is weak within 5 minutes. BUT I'm going to fix the major fuel leaks, trim up my VE tables, adjust my fuel pressure, fix the turbo oil leak, get that first warm up done and start polishing my turd.
06-22-2014, 07:42 PM
#12
His trans did not hold well at that power level. Consider low 500s as max for a 5AT. There is no way to increase line pressure at high rpms and no way to increase the surface area for frictions (with current product offerings and no real R&D going on anymore for the 5AT).
Last edited by rcdash; 06-22-2014 at 07:44 PM.
06-23-2014, 05:57 PM
#13
I like this info. I have a built 5at, Transgo, and a Stillen Trans cooler. JTran is starting fab work on my single turbo this week. They are setting me up with 10-12 psi wastgate to get started. They have a customers G35 with a JWT Twin Turbo and a SFR 5at that has been running at 500+ for around three years. I'd like to run my car "as is" for a while before having to make a decision on a replacement transmission. Is 500ish the max anyone on here has ran successfully for an extended period?
I'd rather sell the built 5at while it's working rather than tear it up. Selling it could fund a large percentage of a 6mt swap.
Edit: I read the responses above. I am fishing for more input, or more elaboration.
I'd rather sell the built 5at while it's working rather than tear it up. Selling it could fund a large percentage of a 6mt swap.
Edit: I read the responses above. I am fishing for more input, or more elaboration.
Last edited by Jaxter; 06-23-2014 at 09:19 PM.
06-23-2014, 09:06 PM
#14
Registered User
I like this info. I have a built 5at, Transgo, and a Stillen Trans cooler. JTran is starting fab work on my single turbo this week. They are setting me up with 10-12 psi wastgate to get started. They have a customers G35 with a JWT Twin Turbo and a SFR 5at that has been running at 500+ for around three years. I'd like to run my car "as is" for a while before having to make a decision on a replacement. Is 500ish the max anyone on here has ran successfully for an extended period?
I'd rather sell the built 5at while it's working rather than tear it up. It could fund a large percentage of a 6mt swap.
Edit: I read the responses above. I am fishing for more input, or more elaboration.
I'd rather sell the built 5at while it's working rather than tear it up. It could fund a large percentage of a 6mt swap.
Edit: I read the responses above. I am fishing for more input, or more elaboration.
06-24-2014, 02:48 PM
#15
I like this info. I have a built 5at, Transgo, and a Stillen Trans cooler. JTran is starting fab work on my single turbo this week. They are setting me up with 10-12 psi wastgate to get started. They have a customers G35 with a JWT Twin Turbo and a SFR 5at that has been running at 500+ for around three years. I'd like to run my car "as is" for a while before having to make a decision on a replacement transmission. Is 500ish the max anyone on here has ran successfully for an extended period?
I'd rather sell the built 5at while it's working rather than tear it up. Selling it could fund a large percentage of a 6mt swap.
Edit: I read the responses above. I am fishing for more input, or more elaboration.
I'd rather sell the built 5at while it's working rather than tear it up. Selling it could fund a large percentage of a 6mt swap.
Edit: I read the responses above. I am fishing for more input, or more elaboration.
06-27-2014, 05:20 PM
#17
Registered User
you could go with the tci 6x 6 speed 4l80e nice auto trans
http://www.summitracing.com/parts/tci-271600/overview/
what im about to put in
http://www.summitracing.com/parts/tci-271600/overview/
what im about to put in
01-12-2015, 07:52 PM
#19
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His trans did not hold well at that power level. Consider low 500s as max for a 5AT. There is no way to increase line pressure at high rpms and no way to increase the surface area for frictions (with current product offerings and no real R&D going on anymore for the 5AT).
http://www.dragtimes.com/Infiniti-G3...lip-23142.html
01-12-2015, 08:24 PM
#20
Jim Cooper with his G37 5AT did pretty well with a level10 built tranny. Close to 600HP with lots of passes on the strip.
http://www.dragtimes.com/Infiniti-G3...lip-23142.html
http://youtu.be/8_ptJ3i04WI
http://www.dragtimes.com/Infiniti-G3...lip-23142.html
http://youtu.be/8_ptJ3i04WI