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Old 03-16-2011, 07:06 PM   #76
mtcs
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Originally Posted by osirissirhc View Post
Just got confirmation from exedy that the used twin that I bought is from a 5 speed :-( and I just ordered the triple upgrade for a 6 speed. Damn it! Hopefully it's as easy as getting a 6speed pressure plate. Evan from exedy said they are practically identical except the pressure plate finger height.

Jeeze man....
Both the wrx and sti use a 7.25" flywheel. So technically, the 5 speed clutch should fit in the 6 speed. The only difference is the pressure plate as you said. Call Exedy and see what they say. Nothing is ever easy trying to go fast huh...lol... If you can't use the 5spd exedy, let me know. I might know someone who might be interested in it.
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Old 03-16-2011, 07:29 PM   #77
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If you can't use the 5spd exedy, let me know. I might know someone who might be interested in it.
Thanks man will do, I may look into trading my 6 speed plus cash for a 5 speed and do a dog box.
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Old 03-16-2011, 07:30 PM   #78
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5spd clutches do fit in 6-spd housings HOWEVER if the multiple plate clutch requires a slave cylinder remounting kit, things change.

Me and my carbonetics set up found this out first hand

Just an FYI, Andrew told me the PPG's are only rated to about 800 and Chalak didn't say much better. That's why I snagged a 6-spd and sold my PAR dogbox.
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Old 03-16-2011, 07:48 PM   #79
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Originally Posted by Homemade WRX View Post

Just an FYI, Andrew told me the PPG's are only rated to about 800 and Chalak didn't say much better. That's why I snagged a 6-spd and sold my PAR dogbox.
So they "said" the 6 speed can handle more than a dogbox?
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Old 03-16-2011, 09:04 PM   #80
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Im running a PPG syncro 5 speed in my build(I know...ppg syncro box + drag = broken lol). The synco 5spd and 5spd dogbox are great trransmissions that can handle a lot of power. They are very strong yes, but there is one drawback to going 5 speed. The case is inherently weak and will flex and crack under heavy abuse/drag racing. I have had it happen to me before. :<
The 6 speed on the other hand doesnt have this stupid case flex. So I would def call the 6spd a stronger trans.
What you should do....is get a 07 sti 6 speed and run 07 1-4 and LGT 5-6.
The 07 box is fantastic for drag racing due to the fact that you can get so much more mph out of each gear and is basically bullet proof.
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Old 03-16-2011, 10:06 PM   #81
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So they "said" the 6 speed can handle more than a dogbox?
no basically that if you are pushing the 800 limit you need a built 6-spd

the 'found' limit of the stock 6-spd gears seem to be around 700-800 area. Of course I don't know if anyone has done cryo/REM treatment to them and seen how much/if it helps. I'm thinking about tearing down my 6-spd to have this done.

I'll see how I like the treatment as I'm doing it to my RA 5-spd box for my DD. I'm also doing a case strengthening project with that trans. Trying to help knock out the flex.
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Old 03-16-2011, 11:58 PM   #82
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Modena dogbox's can handle the power you are looking at with a 5 speed, and you have a local vendor for them (Matt Monson). Although, the prices are higher than PPG but you get what you pay for. Also, the case becomes less of an issue as straight cut gears do not create the same outward forces on the case. I own one and have done plenty of high rpm clutch releases w/2 step launch control with no issues.
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Old 03-17-2011, 12:34 AM   #83
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Originally Posted by SubeTek View Post
Modena dogbox's can handle the power you are looking at with a 5 speed, and you have a local vendor for them (Matt Monson). Although, the prices are higher than PPG but you get what you pay for. Also, the case becomes less of an issue as straight cut gears do not create the same outward forces on the case. I own one and have done plenty of high rpm clutch releases w/2 step launch control with no issues.
Think you got it backwards...

The helical gears sends torque down the shaft as well as apart(
separative force). These forces are known as axial and radial thrust. Straight cut gears only produce radial thrust.
The 5mt case is designed to hold axial. That's is the reason behind the huge thrust bearings in it. Straight cut negates the thrust and their purpose which in turn
puts all the load on the case. Result = shatter


SubeTek, you must be a damn good driver if you romp on your 5mt with the two step and it keeps going no problems. I'm so rough with my transmissions. serves me right they always break on me. lol

It is just not a good idea to use the 5mt case if you intend to drag on it regularly. Especially if you are planning to hit those sweet 9s. After my break-in is done on my build, I intend to switch to a long 6-speed.
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Old 03-17-2011, 12:45 AM   #84
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I've heard Hollinger gearsets are good too but they are $$$ as well. The customer service at Modena and Hollinger both sucked. They took forever to answer and then didn't even answer the questions I had
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Old 03-17-2011, 02:34 AM   #85
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Me and ASF have discussed 5 speed bracing to hold more powa. If 6 speed dogbox is needed so be it. Trying to avoid having an extra shift though, rather rap out 4th. But not sure if its possible with 9k rev limit.

Also the clutch is cerametalic not carbon, you can get a triple upgrade for it.

Last edited by project_skyline; 03-17-2011 at 02:41 AM.
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Old 03-17-2011, 08:49 AM   #86
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Quote:
Originally Posted by Homemade WRX View Post
no basically that if you are pushing the 800 limit you need a built 6-spd

the 'found' limit of the stock 6-spd gears seem to be around 700-800 area. Of course I don't know if anyone has done cryo/REM treatment to them and seen how much/if it helps. I'm thinking about tearing down my 6-spd to have this done.

I'll see how I like the treatment as I'm doing it to my RA 5-spd box for my DD. I'm also doing a case strengthening project with that trans. Trying to help knock out the flex.
700 800 What? puppies?

Quote:
Originally Posted by mtcs View Post
Think you got it backwards...

The helical gears sends torque down the shaft as well as apart(separative force). These forces are known as axial and radial thrust. Straight cut gears only produce radial thrust.
The 5mt case is designed to hold axial. That's is the reason behind the huge thrust bearings in it. Straight cut negates the thrust and their purpose which in turn
puts all the load on the case. Result = shatter

SubeTek, you must be a damn good driver if you romp on your 5mt with the two step and it keeps going no problems. I'm so rough with my transmissions. serves me right they always break on me. lol

It is just not a good idea to use the 5mt case if you intend to drag on it regularly. Especially if you are planning to hit those sweet 9s. After my break-in is done on my build, I intend to switch to a long 6-speed.
IIRC Dom said helical gears are stronger than straigh cut, there is too much play on straigh cut gears. PPG helical are only rated at 400 puppies which is very low. My built DS1 stock ratio tranny built tranny is been holding quite well probably 460wtq dynojet 400wtq Airboy, 6-puck and all . Funny thing on my receipt in the item number says Albins 1-5. I asked them about it and they said is their gear set not Albins, which I do not believe... \/ same story haha

this guys went 9 sec on their suby with a 5-speed, they used to said that it was their own gear set now it says that it is albins
http://www.scoobyclinic.com/products_clutches.htm

Last edited by juanmedina; 03-17-2011 at 09:03 AM.
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Old 03-17-2011, 01:12 PM   #87
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Quote:
Originally Posted by juanmedina

IIRC Dom said helical gears are stronger than straigh cut, there is too much play on straigh cut gears. PPG helical are only rated at 400 puppies which is very low. My built DS1 stock ratio tranny built tranny is been holding quite well probably 460wtq dynojet 400wtq Airboy, 6-puck and all . Funny thing on my receipt in the item number says Albins 1-5. I asked them about it and they said is their gear set not Albins, which I do not believe... \/ same story haha

this guys went 9 sec on their suby with a 5-speed, they used to said that it was their own gear set now it says that it is albins
http://www.scoobyclinic.com/products_clutches.htm
Yup. The helical design allows for more tooth profile (twices as much) contact than the straightcut gearset.

Albins are the way to go if you plan on building a 5spd drag monster. Their helical gearsets have been tested to over 500tq without a single failure. Their gearset desigh is completely different than PPGs. They are manufactured maticulously in house on all high end machines. PPGs are not. There are a few albins vendors on the forums, I'm sure they'll chime in.

Scoobyclinic's UK drag car is a great example of a 5mt drag car on the albin gears. They are a member on the boards and have posted up a thread in the power bragging section with specs and video of their car. Very impressive if you ask me.

Few vids of scoobyclinics time attack rs running 9s on a 30r...very sick.
http://forums.nasioc.com/forums/show...t=scoobyclinic
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Old 03-17-2011, 01:37 PM   #88
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Yeah, I know Craig at Maxwell Power has been flogging on his Albins gearset for a while in his 2.5RS. I think he was making 500-550 lb-ft on low grade race gas...I'd have to double check with his thread.

I'd talked with Dom about going built 6-spd or built 5-spd and because of the standing mile situation, it's still up in the air. PPG has nothing for me when I was talking with Andrew.
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Old 03-17-2011, 03:45 PM   #89
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Thought you were gonna get the hookup through Matt and have Brett build it?
You could sell some semen & blood (not mixed together) and get one of these:
http://eng.kaps-transmissions.com/pr...l-gearbox.html

Some pics added on page 3.

Last edited by ASF Machine; 03-17-2011 at 04:38 PM.
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Old 03-18-2011, 12:28 AM   #90
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I've built a few Modena dogboxes and will vouche for their quality as the best i've seen yet. PAR gearsets seem the most rudementary as far as machine quality. PPG & Albins seem to have better quality. Haven't had the oppurtunity to get my hands on a Hollinger, but i've heard they are quite nice. The main reason i went with Modena originally was (1) the 6 speed was not out yet, (2) MRT was selling the gearsets as "unbreakable" and would replace any broken gear under warranty, and (3) the exchange rate was way in my favor. I have yet to see or hear of anyone break a Modena gearset. The 6 spped is a great trans-no doubt, but the 5 speed has it's place too. My opinion is that you get what you pay for "usually".

Bret
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Old 03-18-2011, 11:09 AM   #91
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^^^yeah, the game has shifted quite a bit from when I started looking heavily into them 5 years ago.

I'm actually talking with Albins directly now and they've offered to do custom ratios for a very acceptable fee. Just takes '14-20 weeks' to get them made.
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Old 03-19-2011, 02:29 PM   #92
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Quote:
Originally Posted by ASF Machine View Post
Thought you were gonna get the hookup through Matt and have Brett build it?
You could sell some semen & blood (not mixed together) and get one of these:
http://eng.kaps-transmissions.com/pr...l-gearbox.html

Some pics added on page 3.
At this point no decision has been made by the OP. I'm all for supporting two locals, I still need to talk to matt some more about GR on the set he has (if he still has it).
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Old 03-19-2011, 10:19 PM   #93
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Manley makes a nice crank but they don't balance worth a damn until you get buck wild.

Tolerance set to .1 grams:





Spun up and check out at 10+ grams in front and 19+ in back.
Required a little profile shave on one counterweight:




To get this...




Sometimes you gotta do this:



Ugly and precise.


Next up deburring and cleaning...
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Old 03-19-2011, 11:50 PM   #94
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God damn! ^ lol good job Joe
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Old 03-20-2011, 01:04 AM   #95
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Wow...takes a lot of experience and balls to do that to a $1400 crank.
Why do all the new aftermarket ej25 cranks come so out off balance?
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Old 03-20-2011, 01:04 PM   #96
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With all the gundrilling and slightly slimmer counterweights, the Manley weighs in at around 1 pound less than a factory crank. One pound equals 453.5 grams, so 30 grams isn't much in terms of overall weight but it's huge when balancing. Factory EJ257s are typically within a few grams of zero in terms of balance but I would imagine QC is stricter at the forging level than cranks like the Manley or K1.
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Old 03-20-2011, 02:39 PM   #97
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You really had to cut that puppy up! It was a V2 right?
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Old 03-20-2011, 08:06 PM   #98
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Revised oiling version, so yeah.
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Old 03-21-2011, 01:35 AM   #99
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Maperformance, you never know with them haha!

Whens the magic come together?
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Old 03-21-2011, 09:50 AM   #100
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Will, adam at MAperformance is awesome everything I've asked for he double some times triple checks with me over the phone that it's the right part and exactly what I want ;-)
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