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Old 01-06-2021, 01:30 AM   #29
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Originally Posted by ICauseCalamity View Post
Not even injectors?
Only the Jackson Racing kit, as in the Kraftwerks it not recommended.
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Old 01-06-2021, 11:44 AM   #30
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Originally Posted by ICauseCalamity View Post
Possibly the recall?
There is no transmission recall
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Old 01-06-2021, 01:11 PM   #31
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The limits on the motor are as much a question of driving style and maintenance than anything. Stock motors go just from abuse and poor maintenance.
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Old 01-06-2021, 10:22 PM   #32
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Quote:
Originally Posted by ICauseCalamity View Post
Not even injectors?
I believe Mike is saying that generally the Jackson is recommended not the Kraftwerks. Check the kraftwerks thread there's been a bunch of problems with belts and tensioners.

Jackson can't think of any issues off the top of my head except for the centrifugal units themselves failing. I've no idea what the failure rate is. I stayed away mostly because of how the powerband is.
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Old 01-07-2021, 01:40 AM   #33
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2 transmissions both after the supercharger? Damn 2 in 20k miles seems extreme at those power levels.
Aisin published information that our transmission rated for max 250 Nm torque (184.4 lb*ft)
So no surprise here
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Old 01-07-2021, 07:05 AM   #34
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Aisin published information that our transmission rated for max 250 Nm torque (184.4 lb*ft)
So no surprise here
Fourth gear is the issue and isn’t the I know enough. Can be remedied with strengthening rebuild.

I’m running a Harrop on e85 and FlexFuel outputting 226kw and have had no issues. You just don’t floor it at low revs in fourth. I do have a spare transmission ready to install though.
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Old 01-07-2021, 06:17 PM   #35
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Fourth gear is the issue and isn’t the I know enough. Can be remedied with strengthening rebuild.

I’m running a Harrop on e85 and FlexFuel outputting 226kw and have had no issues. You just don’t floor it at low revs in fourth. I do have a spare transmission ready to install though.
Unless your rebuild is strengthening the casing, it's not really strengthening anything.

Guy who just broke his 8th stock transmission (but refuses to do a swap).
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Old 01-07-2021, 08:25 PM   #36
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Do they just let go all of a sudden? My trans feels fine after 14k Edelbrocked miles.
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Old 01-07-2021, 08:58 PM   #37
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2 transmissions both after the supercharger? Damn 2 in 20k miles seems extreme at those power levels.
It probably depends on how someone drives.
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Old 01-07-2021, 10:27 PM   #38
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As far as I know there is no alternative, not reasonably priced that doesn’t require cutting and hammering, trans for the car.. if there is, and it’s not a $15k sequential, I stand corrected.
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Old 01-07-2021, 10:28 PM   #39
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Originally Posted by Decep View Post
Do they just let go all of a sudden? My trans feels fine after 14k Edelbrocked miles.
Depends on your driving habits (how much sudden load you're putting on the transmission).

in other words: Are you putting it into first from 900 rpm and normally driving, or are you dumping it at 4k rpm and constantly ripping through your gears?
Do you have normal street tires, or do you have super grippy tires while you shift aggressively into high RPMs from lower RPMs.

Quote:
Originally Posted by Bodalenko View Post
Fourth gear is the issue and isn’t the I know enough. Can be remedied with strengthening rebuild.

I’m running a Harrop on e85 and FlexFuel outputting 226kw and have had no issues. You just don’t floor it at low revs in fourth. I do have a spare transmission ready to install though.
4th gear is a Common issue due to the single cone compared to triple cones 1, 2, and 3 (one third of the surface area of gears to spread the loads). Doesn't mean gears 5 and 6 are free from this problem. Other parts of the transmission are also not designed to hold more loads, as CSG Mike mentioned.
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Old 01-07-2021, 11:56 PM   #40
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As far as I know there is no alternative, not reasonably priced that doesn’t require cutting and hammering, trans for the car.. if there is, and it’s not a $15k sequential, I stand corrected.
Mazworks CD009 requires minimal cutting and welding. No real hammering.
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Old 01-08-2021, 01:30 AM   #41
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Quote:
Originally Posted by Bonburner View Post
Depends on your driving habits (how much sudden load you're putting on the transmission).

in other words: Are you putting it into first from 900 rpm and normally driving, or are you dumping it at 4k rpm and constantly ripping through your gears?
Do you have normal street tires, or do you have super grippy tires while you shift aggressively into high RPMs from lower RPMs.



4th gear is a Common issue due to the single cone compared to triple cones 1, 2, and 3 (one third of the surface area of gears to spread the loads). Doesn't mean gears 5 and 6 are free from this problem. Other parts of the transmission are also not designed to hold more loads, as CSG Mike mentioned.

Why is 2nd so finicky?! It’s the one gear that I’m always very careful about. In the “winter” (I live in north Texas), I usually skip 2nd until the trans fluid is warmed up. Even in the summer I’m careful. Going into 1st there is sometimes resistance, but I can usually move back into neutral, then back into 1st and everything is fine. I’m sure that shift feel, and being able to hold torque in each gear, aren’t always directly related.
I’m at stock power levels on the Michelin Primacys. With more power I would be very paranoid about the six speed holding up. Some of you guys are really brave. I still think it’s a great transmission, with a really solid mechanical feel. I think it’s similar to a Honda MT, maybe not quite as precise.


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Old 01-08-2021, 02:21 AM   #42
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Originally Posted by JesseG View Post
Why is 2nd so finicky?! It’s the one gear that I’m always very careful about. In the “winter” (I live in north Texas), I usually skip 2nd until the trans fluid is warmed up. Even in the summer I’m careful. Going into 1st there is sometimes resistance, but I can usually move back into neutral, then back into 1st and everything is fine. I’m sure that shift feel, and being able to hold torque in each gear, aren’t always directly related.
I’m at stock power levels on the Michelin Primacys. With more power I would be very paranoid about the six speed holding up. Some of you guys are really brave. I still think it’s a great transmission, with a really solid mechanical feel. I think it’s similar to a Honda MT, maybe not quite as precise.


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Depends car to car - the manufacturing tolerances are really tight for our transmission. So unit by unit you can experience less than ideal teeth/other parts matching or even where the unit is bolted up.

Try replacing the transmission oil with something else.

I've experienced 1st gear lock out occasionally when my mileage was under 60k? Now that I'm in the 107k my transmission shifts almost flawlessly (although it could use some polyurethane mounts to eliminate some of the slop).

I've found Motul gear 300 75w-90 to be your best bet based on the recommended weights per manual and viscosity data.
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