Aisin 5-speed Manual rebuilder or upgrades? - Page 3 - Pontiac Solstice Forum
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post #31 of 43 (permalink) Old 09-20-2017, 04:53 PM
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Originally Posted by cammerjeff View Post
I may have figured out another option, I found the AR-5 Transmission is basically the same transmission that Toyota put in the Supra's and called a r154. There are a couple of companies that rebuild and upgrade r154's and advertise they can rebuild/upgrade your trans for $1300 plus shipping, plus the cost of any shaft, gear or case replacement required. They claim they can upgrade the r154 to withstand 500 lb ft or torque.

So if they will work on my AR-5 $1500 and no major modifications sound like a great deal to me. I will let you know what I find out.

Yeah I said that from the getgo

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post #32 of 43 (permalink) Old 09-21-2017, 05:13 AM Thread Starter
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Reread your 2nd post and yes you did, sorry I forgot. But I must of sorta remembered as I did start looking up r154 info. One of the rebuilders did get back to me and they said they could do it, but it would be " a little" extra for some different than normal parts. They did not explain how much or what parts. Good to know there is an option to upgrade the stock transmission.

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1969 Firebird Sprint 301 OHC-6, T-5
1971 Catalina Freeway Enforcer 455
1973 Lemans Safari 400 4-speed
1977 Astre Formula 215 V-8 T-5
1978 Sunbird Safari 231 V-6 2004R
1978 Catalina Safari Soon to have a Pontiac 400 4bb
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post #33 of 43 (permalink) Old 09-21-2017, 06:14 AM
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Originally Posted by cammerjeff View Post
Reread your 2nd post and yes you did, sorry I forgot. But I must of sorta remembered as I did start looking up r154 info. One of the rebuilders did get back to me and they said they could do it, but it would be " a little" extra for some different than normal parts. They did not explain how much or what parts. Good to know there is an option to upgrade the stock transmission.

Its allllll good! I am glad you found a place though! Please keep us updated on how it works out, I am interested to see what they do with your trans (and what shop if you could pm me)

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post #34 of 43 (permalink) Old 09-21-2017, 03:44 PM
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FWIW, This place has about 6 transmissions for sale, but only one is a 2006 manual. 2006 Pontiac Solstice Transmission, 2006 Pontiac Solstice | B152761945K, $1,382.00 FREE Shipping, 400-00153, (Phoenix, Arizona) $1382.

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Mr & Mrs ChopTop's 09 Fastback & 06 Vert Mods thread:https://www.solsticeforum.com/forum/f...session-75468/ Original join date; Oct 2005 under LowLife handle.
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post #35 of 43 (permalink) Old 09-21-2017, 05:49 PM
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Originally Posted by EDT View Post
I found this on another forum that seems to explain it:

When you are off the clutch in neutral, the input shaft of the trasmission is spinning with the engine, while the output shaft is not, since it's connected to the road. The gears connect the input and output shaft together.

When you push the clutch in and shift into first, the synro has to match the speed of the input shaft (~800rpm) to the speed of the output shaft (0rpm). This can cause the car to lurch forward just a tiny bit, while the syncro slows the input shaft to 0rpm so the gear can fully engage. Since the syncro is connected to the gear, this will put just a tiny bit of torque through to the output shaft. The reason it doesn't happen again if you keep the clutch in, then go to neutral then back to first is because the input and output shaft are already matched.

Have none of you really noticed this? Go out and try it. Start your car, put it in neutral. Then let the clutch out, clutch back in and put it into first gear really fast. The car will lurch forward just a tiny bit. It's normal and isn't a problem.
I found this interesting, because I had never experienced it. This morning I got stuck in traffic on a dead-level section of road (pretty rare around here) so I had a chance to experiment. I ultimately figured out that I have never felt this because 1) I am usually not on dead-level road when starting out so 2) I pretty much never engage gear without the brake on and 3) you really do have to jam the transmission into gear very quickly, and I don't do that. I found that, if I was very quick with the gearshift I would get a very mild pull that moved the car perceptibly but not a lot. It felt most like someone leaning against the back and easing it forward. I suppose if the synchroniser was bad it would be more pronounced, but what I felt was nowhere near a lurch or jerk. If I counted "1" before shifting into gear I had to concentrate hard to feel anything, and after counting to "2" I didn't detect anything at all because the delay allowed the input shaft to stop rotating.

I don't think my little experiment proved much of anything, but it did amuse me for a few minutes.

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post #36 of 43 (permalink) Old 09-22-2017, 05:12 AM Thread Starter
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John, that is a better description than I wrote of that symptom, it was present when I 1st bought the car, but has been getting progressively worse. Still if that was the only issue I was having I would not be concerned about it. I never thought about my driving style with not having my foot on the brake when going from neutral to 1st gear making much of a difference, but I can believe it does.

Choptop thanks for the link, but that price for a used transmission with unknown miles is probably about what I would pay for the other company to rebuild/upgrade mine, plus the shipping both ways. But as always I appreciate the effert involved.

Certified Pontaholic & Former Jet Mech

1969 Firebird Sprint 301 OHC-6, T-5
1971 Catalina Freeway Enforcer 455
1973 Lemans Safari 400 4-speed
1977 Astre Formula 215 V-8 T-5
1978 Sunbird Safari 231 V-6 2004R
1978 Catalina Safari Soon to have a Pontiac 400 4bb
2006 Mallet Solstice LS2 6-speed Manual
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post #37 of 43 (permalink) Old 09-22-2017, 05:50 AM
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yeah those used transmission prices are insane in the membrane. What are they smoking, and where can I get some? :3

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post #38 of 43 (permalink) Old 09-22-2017, 09:05 AM
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Originally Posted by cammerjeff View Post
John, that is a better description than I wrote of that symptom, it was present when I 1st bought the car, but has been getting progressively worse. Still if that was the only issue I was having I would not be concerned about it. I never thought about my driving style with not having my foot on the brake when going from neutral to 1st gear making much of a difference, but I can believe it does.

Choptop thanks for the link, but that price for a used transmission with unknown miles is probably about what I would pay for the other company to rebuild/upgrade mine, plus the shipping both ways. But as always I appreciate the effert involved.
Question: Sitting at idle you push in the clutch, select 1st gear, and lurch forward slightly. What happens if you then shift into neutral and back to first while holding the clutch in?

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post #39 of 43 (permalink) Old 09-22-2017, 10:42 AM Thread Starter
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Originally Posted by JohnWR View Post
Question: Sitting at idle you push in the clutch, select 1st gear, and lurch forward slightly. What happens if you then shift into neutral and back to first while holding the clutch in?
I don't think anything happens, but I will verify that this weekend. Its actually supposed to be very nice up here, and I actually have the entire weekend off.

Certified Pontaholic & Former Jet Mech

1969 Firebird Sprint 301 OHC-6, T-5
1971 Catalina Freeway Enforcer 455
1973 Lemans Safari 400 4-speed
1977 Astre Formula 215 V-8 T-5
1978 Sunbird Safari 231 V-6 2004R
1978 Catalina Safari Soon to have a Pontiac 400 4bb
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post #40 of 43 (permalink) Old 09-25-2017, 08:03 AM Thread Starter
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John,

Just some info on what you asked about taking it out of gear and putting it back into 1st after I experience the slight "bump" going from neutral into 1st. If I put it directly back into 1st after just a couple of seconds I don't feel the "bump" but if I wait around a minute or so the "bump" returns.

Still looking at options, probably will not decide what route to go until late next month. Still have some top down weather here in the Mitten.

Certified Pontaholic & Former Jet Mech

1969 Firebird Sprint 301 OHC-6, T-5
1971 Catalina Freeway Enforcer 455
1973 Lemans Safari 400 4-speed
1977 Astre Formula 215 V-8 T-5
1978 Sunbird Safari 231 V-6 2004R
1978 Catalina Safari Soon to have a Pontiac 400 4bb
2006 Mallet Solstice LS2 6-speed Manual
2009 G8 GT
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post #41 of 43 (permalink) Old 09-29-2017, 07:15 AM Thread Starter
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Just an update, it looks like I will be going with a Tremec Magnum 6-speed. After visiting Tremec this week, (they are located about 5 miles from where I work) I was able to work out a local pick up price for a New TUET11012 trans and shifter for $3049.00. I ordered a trans cross member and mount from Performance werks, I will probably go junk yarding to look for a used 1998-2002 Camaro/Firebird Bellhousing, I should be able to reuse my existing LS2 flywheel, LUK Pressure Plate, and probably the clutch disc. This should only leave the slave cylinder, and drive shaft as known additional costs.

Certified Pontaholic & Former Jet Mech

1969 Firebird Sprint 301 OHC-6, T-5
1971 Catalina Freeway Enforcer 455
1973 Lemans Safari 400 4-speed
1977 Astre Formula 215 V-8 T-5
1978 Sunbird Safari 231 V-6 2004R
1978 Catalina Safari Soon to have a Pontiac 400 4bb
2006 Mallet Solstice LS2 6-speed Manual
2009 G8 GT
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post #42 of 43 (permalink) Old 01-20-2019, 05:16 AM
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great trans BUTwill not take the torque of the v8 i used a t56 it will take up to 1000 hp.
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post #43 of 43 (permalink) Old 02-16-2019, 01:35 PM Thread Starter
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Are you saying that a Tremec Magnum 6-speed is not as strong as the original BW-T-56? If so I am confused as the Tremec is a beefed up smoother shifting T-56.

If I didn't understand you post please correct me.

Certified Pontaholic & Former Jet Mech

1969 Firebird Sprint 301 OHC-6, T-5
1971 Catalina Freeway Enforcer 455
1973 Lemans Safari 400 4-speed
1977 Astre Formula 215 V-8 T-5
1978 Sunbird Safari 231 V-6 2004R
1978 Catalina Safari Soon to have a Pontiac 400 4bb
2006 Mallet Solstice LS2 6-speed Manual
2009 G8 GT
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