A/T level ten upgrade
01-30-2011, 07:21 PM
#1
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A/T level ten upgrade
Hi I've wondering if anyone ever tried this upgrade on their Rx 8 and what have been the outcome as far as gain , I remember one members that installed the level ten trany but we never got an update
01-30-2011, 07:45 PM
#2
I believe I am the only one with the Level Ten Performance Transmission.
https://www.rx8club.com/series-i-specific-performance-mods-97/level-ten-build-sheet-189184/
https://www.rx8club.com/series-i-specific-performance-mods-97/level-ten-build-sheet-189184/
01-31-2011, 11:08 PM
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Well as far as performance , I notice you had quite a few upgrades on the tranny , have you been able to compare to a MT. As far as stalls etc... Of course we all would love to launch harder at higher rpm
02-01-2011, 02:37 PM
#5
Yes, if you clicked on the thread I have posted it lists everything Level Ten did. I have not been able to compare it to an MT. MT will still kick my *** since I have the lower powerd 4 port. I like they way the car drives with the upgraded tranny and converter. A 6 port auto with an upgraded transmission I think would give the MT a run for its money.
02-01-2011, 05:28 PM
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Do you really feel that the 4port is that under powered, ? Here in St.maarten there's only 3 Rx8 two Mt and my only auto. And i get nail to the seat of that baby every time I shift. Always drive in m
02-03-2011, 03:00 PM
#15
I would like to hear from other 4spd owners out there on this and see reports of stall speeds.
For people out there that don't know how to check the stall rate here's how-
Put the car in Drive, keep foot on the brake, press the gas while not releasing the brake, note the max rpm you reach while at a stop. That is your stall rate.
Can anyone out there with stock 4spd tranny and torque converter stall above 2300? Let us know!
02-03-2011, 03:19 PM
#16
I obtained this infomation off of this website, http://foxed.ca/rx7manual/2003mazdarx8/.
TRANSMISSION/TRANSAXLE TECHNICAL DATA
Automatic transmission type RC4A-EL
Engine stall speed (rpm) D, M range 2,400-2,900
You have to keep in mind that the tachometer is not accurate. When I was doing the Cobb AP datalogs for MazdaManiac the tach read 4200rpms what the Cobb AP was reading around 3900-4000rpms.
TRANSMISSION/TRANSAXLE TECHNICAL DATA
Automatic transmission type RC4A-EL
Engine stall speed (rpm) D, M range 2,400-2,900
You have to keep in mind that the tachometer is not accurate. When I was doing the Cobb AP datalogs for MazdaManiac the tach read 4200rpms what the Cobb AP was reading around 3900-4000rpms.
02-03-2011, 03:50 PM
#17
Thanks for the link Invasion I'm checking it out now. So here's another question, and I'm not trying to sound rude or mean I just want to learn more about the car.
If the tach is off like you say and the Cobb is truly correct then wouldn't the stall really be more like 2000 if the tach reads 22-2300?
Your data seems to imply that the Cobb reads 2-300 rpm less than what the tach shows is that right?
If the tach was reading 2-300 less than the real thing then the 2400 rpm stall sounds about right?
If the tach is off like you say and the Cobb is truly correct then wouldn't the stall really be more like 2000 if the tach reads 22-2300?
Your data seems to imply that the Cobb reads 2-300 rpm less than what the tach shows is that right?
If the tach was reading 2-300 less than the real thing then the 2400 rpm stall sounds about right?
02-03-2011, 04:27 PM
#19
Yeah I get that it needs to be smooth.
Isn't a stall rate a set rpm though? Why would they say the stall is 2400-2900? I was under the impression the layout of the internal fins of the torque converter determines the stall rate. Since the fins don't move (that I know of) how could you have an adjustable stall like that? It should be a set rpm not a range? A range of stall rates to me would indicate different torque converter models that could reach anywhere within that range.
Isn't a stall rate a set rpm though? Why would they say the stall is 2400-2900? I was under the impression the layout of the internal fins of the torque converter determines the stall rate. Since the fins don't move (that I know of) how could you have an adjustable stall like that? It should be a set rpm not a range? A range of stall rates to me would indicate different torque converter models that could reach anywhere within that range.
02-03-2011, 06:04 PM
#20
That question is beyond my knowledge. So I did a search and found a great website that describes the question you are asking. http://www.bankspower.com/techarticl...ng-Stall-Speed
02-03-2011, 06:29 PM
#21
Yeah I get that it needs to be smooth.
Isn't a stall rate a set rpm though? Why would they say the stall is 2400-2900? I was under the impression the layout of the internal fins of the torque converter determines the stall rate. Since the fins don't move (that I know of) how could you have an adjustable stall like that? It should be a set rpm not a range? A range of stall rates to me would indicate different torque converter models that could reach anywhere within that range.
Isn't a stall rate a set rpm though? Why would they say the stall is 2400-2900? I was under the impression the layout of the internal fins of the torque converter determines the stall rate. Since the fins don't move (that I know of) how could you have an adjustable stall like that? It should be a set rpm not a range? A range of stall rates to me would indicate different torque converter models that could reach anywhere within that range.
Imagine you have two fans facing each other. Turn one fan on, and it will blow air over the blades of the second fan, causing it to spin. But if you hold the second fan still, the first fan will keep right on spinning.
That's exactly how a torque converter works. One "fan," called the impeller, is connected to the engine (together with the front cover, it forms the outer shell of the converter). The other fan, the turbine, is connected to the transmission input shaft. Unless the transmission is in neutral or park, any motion of the turbine will move the vehicle.
http://www.bankspower.com/techarticl...que-Converters
02-04-2011, 07:27 AM
#23
WTF do you care about stall speed for? This car was not build for the 1/4 mile race. If you will just FI your 4 port a/t you will find that few HP that was missing from the 4 port to the 6 port and a whole lot more. You will also find that your stock tranny is more than sufficient for use as the car was designed. Come to WHiV4 this year and see /sc a/ts and turboed a/ts and you will say screw stall speed. Now if you insist upon doing what this car was not intended for then by all means worry about stall speed.
Last edited by Phil's 8; 02-04-2011 at 07:33 AM.
02-04-2011, 07:40 AM
#24
Thanks again for those link Invasion, good info there I read it all.
Thanks mperformance for checking your numbers, hopefully we can see others post their info here too.
Thanks mperformance for checking your numbers, hopefully we can see others post their info here too.
02-04-2011, 07:52 AM
#25
WTF do you care about stall speed for? This car was not build for the 1/4 mile race. If you will just FI your 4 port a/t you will find that few HP that was missing from the 4 port to the 6 port and a whole lot more. You will also find that your stock tranny is more than sufficient for use as the car was designed. Come to WHiV4 this year and see /sc a/ts and turboed a/ts and you will say screw stall speed. Now if you insist upon doing what this car was not intended for then by all means worry about stall speed.