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Piglet's Rebuild Of His Busted Tomei 2.8


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Dunno why it broke.

I pulled the boost down to 1.5 bar (minimum I can run). Came in second session and second gear was knocking. Terry at award thinks its a bent or broken gear.

Dunno when I'm gonna pull it out. I'm a bit heart broken ATM.

i feel for ya man.....I really do. However, I'd be wanting to find out the cause of said broken gear as OS Giken Gbox should be capable of handling your cars power output
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Power maybe. Torque ? Seems not! :(

The PPG boxes if put together properly seem to hold together behind RB30s and big power...though never seem a helical gear set being abused...always the straight cut boxes behind the track car setups

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If I could quote both on my phone I would!

Ants; it's the torque. Twist x RPM = power. Bah.

BBQ Sleeper; I know what you're saying. I'm

Not one to be hard on the equipment. Hell, I turned the boost down and was shifting at no more than 6500 RPM. I never shift hard. Grr.

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If I could quote both on my phone I would!

Ants; it's the torque. Twist x RPM = power. Bah.

BBQ Sleeper; I know what you're saying. I'm

Not one to be hard on the equipment. Hell, I turned the boost down and was shifting at no more than 6500 RPM. I never shift hard. Grr.

and that's what concerning to me.
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Lol twisted gear set on a 2.8 litre with too much "torques"

Lol sounds like a farken assembly problem or bearing issues Eg assembly problem

Billet metal doesn't "bend" under 2.8 litres of nm

Just saying ... Unless your 2.8 is a 6 litre turbo diesel

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Lol twisted gear set on a 2.8 litre with too much "torques"

Lol sounds like a farken assembly problem or bearing issues Eg assembly problem

Billet metal doesn't "bend" under 2.8 litres of nm

Just saying ... Unless your 2.8 is a 6 litre turbo diesel

this man ^ he knows
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Lol twisted gear set on a 2.8 litre with too much "torques"

Lol sounds like a farken assembly problem or bearing issues Eg assembly problem

Billet metal doesn't "bend" under 2.8 litres of nm

Just saying ... Unless your 2.8 is a 6 litre turbo diesel

Award f**ked up?

Hoping its a collapsed bearing. I've rung Terry and he hasn't given me good news.

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time to start monitoring gearbox temp

please post pics of the failure so us nerds can analyze it!

Will do.

I can't see it getting "too" hot in a ten minute session.

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The is gear set is rated for 800hp and if you do the math Paul's car is making some where around 750-800 at the engine, which puts the box at the top of its capabilities

Ye

Id put it at at 730-740hp at the crank

And you can really rate a gearbox by horsepower. Os should rate then by torque.

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475kws is 617hp at the wheels now with an average drive train loss of between 20-30%, you're looking at 741-803hp at the crank and even if you take the middle ground of 25%, it's still 772hp

And the fact this car is making 350kw by 4500rom says it's making bucket loads of torque right through the rev range

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Lol twisted gear set on a 2.8 litre with too much "torques"

Lol sounds like a farken assembly problem or bearing issues Eg assembly problem

Billet metal doesn't "bend" under 2.8 litres of nm

Just saying ... Unless your 2.8 is a 6 litre turbo diesel

+1 indeed.

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So, after Tuesday, it looks like I have broken or bent a tooth in second gear.

Time for another aftermarket gearbox.

PPG straight cut dog box? The OS 5 speed doesn't cut it! :(

Transfer the money and I'll send it up..

You'll have to get rid of your nismo clutch though.

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Lol.

Yeah, no.

There is nothing "street" about a holinger box.

Hang in there Paul, sure it can be heart breaking with things break but its part of playing with performance cars too....

I'd like to know how noisy a holinger is compared to a normal box too for streetability. If your not driving the car every day, who cares if its not a lot of fun in 3 point turns.

Have you thought of using an R34 getrag? With the R33 diff ratios it would handle more power, plus they are nicer to drive than an R33 box and cheaper than a holinger or built box.

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Hang in there Paul, sure it can be heart breaking with things break but its part of playing with performance cars too....

I'd like to know how noisy a holinger is compared to a normal box too for streetability. If your not driving the car every day, who cares if its not a lot of fun in 3 point turns.

Have you thought of using an R34 getrag? With the R33 diff ratios it would handle more power, plus they are nicer to drive than an R33 box and cheaper than a holinger or built box.

I've thought about the R34 box. Are they really that strong? I liked the long ratios, it worked well. With the getrag and 4.11's it would go back to "Evo like rowing gears", which is something I don't think I'd like.

Holinger.... Nah. $20k for a box. Blah lol

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