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Old 03-08-2013, 09:41 AM   #1176
SoapBox
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Quote:
Originally Posted by juanmedina View Post
Is only 70lbs... it may aid traction. If someone want to make tons of power 5-speed suck.
The car is 2wd, and a fraction of the weight. That's a LOT LESS traction, and thus a lot less stress on the trans.

You won't be breaking 5 speeds at anywhere near the power levels you do in a 3100 lb, RWD Subaru.
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Old 03-08-2013, 09:42 AM   #1177
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But CJ, I want to shockload the poor gears of an AWD car by shifting like a jackass!
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Old 03-08-2013, 10:20 AM   #1178
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If you're making "tons of power" in this car, then I think you can afford the solution- PPG!
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Old 03-08-2013, 10:22 AM   #1179
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Originally Posted by OrbitalEllipses View Post
But CJ, I want to shockload the poor gears of an AWD car by shifting like a jackass!
Iknowrite?!
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Old 03-08-2013, 10:30 AM   #1180
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Yeah PPG 5 speed and front LSD makes a lot more sense than an STI 6 speed to me. You would be shifting way too much in a 6 speed I think. But hey it's your car, build it however you want.
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Old 03-08-2013, 09:29 PM   #1181
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Quote:
Originally Posted by SoapBox View Post
The car is 2wd, and a fraction of the weight. That's a LOT LESS traction, and thus a lot less stress on the trans.

You won't be breaking 5 speeds at anywhere near the power levels you do in a 3100 lb, RWD Subaru.
LOL my car weights 3000lbs with me in it and I broke my Albins tranmission.

Quote:
Originally Posted by Frank A View Post
If you're making "tons of power" in this car, then I think you can afford the solution- PPG!
If I am making real tons of power PPGs will break
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Old 03-08-2013, 10:43 PM   #1182
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Well I have been tossing around the idea of buying a kit and building one up similar to my wrx. But I know a 5spd, wide sticky tires, 500whp 35r is going to break a 5spd. If the skid pad numbers are correct that might also oil starve the 5spd and the motor. But least the older six has the oil pump and you can dry sump the engine.

And for the record.... my 5spd lasted 100k miles at gt30r levels. I know a lot is the driver. But this car has some potential.
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Old 03-10-2013, 12:37 AM   #1183
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Quote:
Originally Posted by juanmedina View Post
LOL my car weights 3000lbs with me in it and I broke my Albins tranmission.



If I am making real tons of power PPGs will break
Morons + power = broken parts.
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Old 03-11-2013, 12:20 AM   #1184
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LOL my car weights 3000lbs with me in it and I broke my Albins tranmission.
OK, still 1,000 lbs heavier.
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Old 03-11-2013, 09:02 AM   #1185
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OK, still 1,000 lbs heavier.
And presumably AWD. He's just not grasping it.
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Old 03-11-2013, 09:44 AM   #1186
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Quote:
Originally Posted by TwinscrollGT35R View Post
But I know a 5spd, wide sticky tires, 500whp 35r is going to break a 5spd.
The tires will break free and spin up before anything breaks. Remember, they're not pushing power through an AWD drivetrain. It's RWD (FWD, but in the rear of the car if that makes any sense)

With no resistance, the gears don't take the same levels of abuse as they did in an AWD and ham-fisting.

--kC
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Old 03-11-2013, 09:55 AM   #1187
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I broke my 5spd at 220 lb-ft (very low reading Mustang) in my 2600 lb Imprea L when I was RWD. I actually broke my 4.11 and 4.44 rear ends first. When I went to the 3.9 r180, second gear gave up.
I was on 215 width Azenis...not the most tractive force.
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Old 03-11-2013, 11:01 AM   #1188
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Quote:
Originally Posted by KC View Post
The tires will break free and spin up before anything breaks. Remember, they're not pushing power through an AWD drivetrain. It's RWD (FWD, but in the rear of the car if that makes any sense)

With no resistance, the gears don't take the same levels of abuse as they did in an AWD and ham-fisting.

--kC
Have you ever launched a car? I see a s2000 and a g8 listed so maybe. But both those have better drivelines then a 02-06 wrx

You launch a car at a autocross lets justsay.. The load shock is going to eat that 5spd. The resistance goes up with wider/sticky tires. And the load goes up on the gearbox. So where is the fuse in the system? Axle or Clutch?

We still have not addressed the oiling issues of a car that can pull 1.8? g's
The 5spd is going to have oiling problems, The 6spd 04-07 has the internal pump. And the engine can be dry sump.

Anyone that buys a stock bugeye donor car to build this, is going to get screwed on the glass gearbox 5spd.
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Old 03-11-2013, 11:07 AM   #1189
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Quote:
Originally Posted by TwinscrollGT35R View Post
Have you ever launched a car? I see a s2000 and a g8 listed so maybe. But both those have better drivelines then a 02-06 wrx

*snip*

Anyone that buys a stock bugeye donor car to build this, is going to get screwed on the glass gearbox 5spd.
Yes. 2002 WRX Wagon. 2003 ProSolo National Champ. (Among other ProSolos over the 2001-2004 years with the car).

Didn't blow up anything. Never hamfisted/jammed gears either. Never had an issue and the owner after I that still has the car, hasn't either. Said it still shifts like new a few years ago. (And he bought it to autox, knowing its history, but then got into karting).

--kC
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Old 03-11-2013, 11:08 AM   #1190
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Originally Posted by Homemade WRX View Post
I broke my 5spd at 220 lb-ft (very low reading Mustang) in my 2600 lb Imprea L when I was RWD. I actually broke my 4.11 and 4.44 rear ends first. When I went to the 3.9 r180, second gear gave up.
I was on 215 width Azenis...not the most tractive force.
And what was the reason for that? IIRC the 818 will be using the front drive and not rear output.

--kC
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Old 03-11-2013, 11:32 AM   #1191
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And what was the reason for that? IIRC the 818 will be using the front drive and not rear output.

--kC
correct.
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Old 03-11-2013, 12:00 PM   #1192
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So how does the center/front dif work on this car? The center diff locked to run 100% power to the front?
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Old 03-11-2013, 12:20 PM   #1193
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So how does the center/front dif work on this car? The center diff locked to run 100% power to the front?
The engine is mounted in the rear, so they drive the rear wheels instead on the front.
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Old 03-11-2013, 12:38 PM   #1194
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Originally Posted by Swine View Post
So how does the center/front dif work on this car? The center diff locked to run 100% power to the front?
Yes I am sure there will be a center diff lock or removal.

Its a shame as most will not opt for a good lsd and be driving a one legger.
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Old 03-11-2013, 12:53 PM   #1195
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Quote:
Originally Posted by KC

And what was the reason for that? IIRC the 818 will be using the front drive and not rear output.

--kC
What was the reason it broke? Fatigue. It actually broke while I was rolling into second gear.
However I was also pointing out that shorter final drives reduce the torque loading on the trans.
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Old 03-11-2013, 03:43 PM   #1196
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Quote:
Originally Posted by Homemade WRX View Post
What was the reason it broke? Fatigue. It actually broke while I was rolling into second gear.
However I was also pointing out that shorter final drives reduce the torque loading on the trans.
But if I understand correctly, Those loads will increase when a 1.5 lsd is installed. So if you are using a 02-05 wrx donor car. 5spd you can run open front diff or upgrade to the 1.5 lsd and increase the chance 10 fold to popping the 5spd. Not adding track grade tires to the mix.

Not sure why you would spend all the time building a car from a kit form to put a weak gearbox in. I'm surprised F5 has taken this route. As if 5spds begin to fail, It will only hurt their product line.

And if 70 lbs is all the weight gain for having a reliable gearbox. I'll take the 70lbs. I can easily get the back in other areas anyways. Wheels, Flywheel, Seats and a Diet..

I'm just saying its not the best route. And like myself and a few others that have made a 5spd last... The guy off the street that doesn't know the history like we do is going to have issues. Even more so when the open diff is swapped out.

I better start buying up 5spds for resale..
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Old 03-11-2013, 06:20 PM   #1197
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Your LSD argument doesn't differ from my scenario. I had a mechanical LSD in my car. Besides which, I'm in your corner. A stock 5-spd is fragile and oiling issues will need to be addressed. As stated, I'd still rather drop the getrag in there.
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Old 03-11-2013, 07:22 PM   #1198
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Well since the car doesn't with any transmission you can put in what you want.
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Old 03-11-2013, 08:01 PM   #1199
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Ffr wanted a single donor vehicle and a $15k pricepoint. Sti's are harder to come by and cost more. My 02 wrx has 188k miles with a vf39 and original motor and trans. My 06 had 351wtq and the gearbox lasted 50k miles with 4 years of hard launches with wide r comps. The 818 will be fine.
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Old 03-11-2013, 08:49 PM   #1200
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I would be concerned with the ease at which the tranny can be removed and repaired.

--kC
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