Dose's Sometimes DIY and Pay Someone Home & Boat Improvement Thread

[Dose Pipe Sutututu]

3 hours ago, MBS206 said:

stripping teeth

This 

[MBS206]

1 hour ago, The Bogan said:

The engine torque my old girl made stripped the material on the teeth gears (case hardening????) and killed the syncros and other little bits in there, smurfs blood worked for a while, but in the end the box was painful to use

It was sent of for a full rebuild to "Award" I think 🤔, organised by UNIGROUP, for new springs, syncros, "things", gears and some internal baffling or something

All was well until I hit the circuit and drags a few times when it started not wanting to shift and making a slight "whining" sound, then after a few more hits at the strip on drag radials it was whining like ten whining things

Rinse and repeat, until it started to whine a little again, I then priced up the fix, better gears, syncos and things, which I couldn't really justify, I was recommended to drop the power down if I wanted the standard box to live if I didn't upgrade it all, I then proceed to dropped my showbags and sell the thing

The added torque the engine puts out from running "high power" and sticky tyres is far over what the box and its internal stuff are rated for

I just tried googling the torque limits for the RB boxes, but was unsuccessful, the best I could find was 600-700hpatw, so around 480-560 hpatw if you use a 20% drivetrain loss (rule of thumb)

My old 25/30 ended up making 500hpatw, that's when the gearbox hated life

IIRC, which isn't really likely, the GTR box is rated to 600 "ish" nm at the engine, a RB, with a good page up for boost, would easily be making over that

Again, IIRC, my 25/30 was making over 800nm atw around 4500rpm

Nissan did over engineer their boxes a bit, but not by that much

Are there any RB's out there making 500hpatw reliability that see the track or circuit?

It seems like a common reliability modification to build them with all the fancy stuff, or change the stock boxes out for a delicious 

or something when your making good power for circuit, or a slush box for the drags

I'm triggered now with all this talk about RB gearboxs and torque ratings, I'm going to light a candle and pray to the gods of "infernal combustion" for my 4l60e and half shafts, that are dealing with more torque than they should really see

Happy trails Dose

Mark, with yours when it would "strip the material on the teeth" was it ripping teeth off entirely, or more just giving excessive wear to the original pattern, or just taking the tips off the edge of the teeth?

[The Bogan]

17 minutes ago, MBS206 said:

Mark, with yours when it would "strip the material on the teeth" was it ripping teeth off entirely, or more just giving excessive wear to the original pattern, or just taking the tips off the edge of the teeth?

It was like peeling skin on the meshing mating surfaces, sort of.....basically alot of wear

[The Bogan]

20 minutes ago, MBS206 said:

Mark, with yours when it would "strip the material on the teeth" was it ripping teeth off entirely, or more just giving excessive wear to the original pattern, or just taking the tips off the edge of the teeth?

The guy I sold it to put a dog in I believe, the guy he sold it put a t400 in

[MBS206]

15 hours ago, The Bogan said:

It was like peeling skin on the meshing mating surfaces, sort of.....basically alot of wear

That definitely sounds like a case of gears just not up to it.

I've seen some boxes break teeth tips, and just snap teeth clean off and that typically can be an issue of worn bearings giving shaft play, or the case of the box itself flexing and allowing shafts to move.

This defo just sounds like original gears not up to the task.

From memory they're only a single helical cut too, which won't be nice on high torque.

Instead of straight cut, does anyone make a double helical cut gearset?

[Dose Pipe Sutututu]

1 hour ago, MBS206 said:

Instead of straight cut, does anyone make a double helical cut gearset?

Not sure what type of helical PAR engineering uses, however they offer on straight cut or helical for the same price

https://www.par-engineering.com/product/fs5r30ass-14set-nissan-fs5r30a-1st4th-synchromesh-engagement-gearset/

Then Speedtek, I think it's just helical, once again all these gearset guys are super low on any information

https://speedtekautoracing.com/collections/gearsets/products/800hp-close-ratio-set

 

 

[robbo_rb180]

2 hours ago, Dose Pipe Sutututu said:

Then Speedtek, I think it's just helical, once again all these gearset guys are super low on any information

https://speedtekautoracing.com/collections/gearsets/products/800hp-close-ratio-set

 

 

Don't bother with them. A mate had to wait on parts that weren't supplied and some things wrong, there were a few issues then dealing with them too. Cheap for a reason.

[Dose Pipe Sutututu]

30 minutes ago, robbo_rb180 said:

Don't bother with them. A mate had to wait on parts that weren't supplied and some things wrong, there were a few issues then dealing with them too. Cheap for a reason.

I was hoping because it's sold via PRP it might not be as hopeless lol.

[MBS206]

5 hours ago, Dose Pipe Sutututu said:

I was hoping because it's sold via PRP it might not be as hopeless lol.

The ratio changes look interesting.

1st gear a lot longer, 2nd mildly longer, and 3 a bit longer, then shorten up 5th...

I for some reason thought they might have shortened each gear and moved 5th back closer to a 1:1 ratio. I wonder what it's like driving on the street with the bigger first.

[r32-25t]

8 hours ago, MBS206 said:

The ratio changes look interesting.

1st gear a lot longer, 2nd mildly longer, and 3 a bit longer, then shorten up 5th...

I for some reason thought they might have shortened each gear and moved 5th back closer to a 1:1 ratio. I wonder what it's like driving on the street with the bigger first.

To make a close ratio gear set they need a long 1st gear because 4th has to be 1:1, so they make them all slightly taller then the originals but they’re are closer together 

[Dose Pipe Sutututu]

I would prefer a longer 1st and 2nd anyway, the factory ratios aren't very good (to me due to my powerband) to use at Wakefield Park or SMSP.

Would be nice to take the fish hook in 2nd without being right at the end of the rev range lol.

[The Bogan]

Dose, this is a shitbox, yours is definitely not

It is abandoned and will be in the bin soon

[r32-25t]

What a waste 

[The Bogan]

23 minutes ago, r32-25t said:

What a waste 

The body is shot, lots of rust holes in every panel and parts on the body

It does have the glass and one or two parts you could strip for parts, but, work says no

There is also about half a dozen old motorcycles that are in various stages of being stripped in disrepair, a old land cruiser that has been pulled of its frame, and fully stripped, pallets of old wheels, exhausts, suspension and dead engines

The shed is meant to be for people to wash and service cars on base, but no one has been able to get in there for years because random unfinished project stuff is everywhere 

The powers that be sent out a message about removing "everything" out of the shed, and it not to be used for projects

Nobody has claimed their stuff so it is all going "in the bin"

I'm all for this "6 bay" shed only being used for washing, and in/out serving stuff

Having a undercover area at work for servicing and cleaning cars will be a great place to be when I need to head out from work to do some "administration"

[Dose Pipe Sutututu]

1 hour ago, The Bogan said:

Dose, this is a shitbox, yours is definitely not

It is abandoned and will be in the bin soon

That is definitely not a shit box, if I had space, time and money I would take it!

I would totally froth over a 240Z, RB25DE NEO with ITBs, biggest fk off cams on the planet, max compression all motor 10k RPM ear s3x.

[The Bogan]

16 minutes ago, Dose Pipe Sutututu said:

That is definitely not a shit box, if I had space, time and money I would take it!

I would totally froth over a 240Z, RB25DE NEO with ITBs, biggest fk off cams on the planet, max compression all motor 10k RPM ear s3x.

I agree about 240z's, but this one looks like it has lived on a diet of salt water, I did due diligence on it, crawled under and around it, there isn't much actual metal left below the roof line, the rust is everywhere, both doors, boot, bonnet, the lower whole body and sills are gone, as well as the underbody/floor,  and totally beyond repair 

There may be 1 square meter of steel, apart from the roof which looks fine, that you could cut out of the higher body panels, and some dash stuff that also could be saved

But as an actual car that could be saved, it is FUBAR

Sad, but true

[GTSBoy]

There needs to be a full aluminium restobody for S30s.

They're doing it for old porkas and the like.

[admS15]

I know of a bloke who restores those things here in Victoria. It can be done but would probably cost more than a new M3 comp.

[Dose Pipe Sutututu]

I should add to my straight swap list, a well built 240Z. Must be already RB swapped lol.

I would make it NA though.

[Kinkstaah]

13 minutes ago, Dose Pipe Sutututu said:

I should add to my straight swap list, a well built 240Z. Must be already RB swapped lol.

I would make it NA though.

Why would you do something like that? Someone actively wanting a N/A RB is just the smoothest brain take on earth, cmon man you deserve better :p