getting there...

Prof · April 22, 2009, 12:01:10 PM

with that turbo and 12psi - I\'m going for 346 BHP at the fly

Archbish · April 22, 2009, 12:02:44 PM

I\'m kinda hoping for 350hp mark, be it fly or rw... Be interesting to see - a while away yet tho!

Archbish · April 22, 2009, 12:31:50 PM

btw, for the oil drain, I\'m struggling to find a reasonable (see cheap) 45/64 drill bit for front plate, although I have the 1/2 npt tap. So would there be a problem with using a bulkhead fitting through the plate, with a -10an nut on the underside? I\'m going to drop the sump and drill on the flat (where the OMP would normally be), so there should be space under there for fitting this, right?

oh, and any idea how to get rid of oil on a driveway??? *sigh*

Prof · April 22, 2009, 12:49:33 PM

Quote from: Archbish;601338btw, for the oil drain, I\'m struggling to find a reasonable (see cheap) 45/64 drill bit for front plate, although I have the 1/2 npt tap. So would there be a problem with using a bulkhead fitting through the plate, with a -10an nut on the underside? I\'m going to drop the sump and drill on the flat (where the OMP would normally be), so there should be space under there for fitting this, right?

oh, and any idea how to get rid of oil on a driveway??? *sigh*

I know some of the guys on rx7club.com have used that trick - with a side entry oil return. It must be downhill all the time from the turbo - so that it drains and doesn\'t fill up, otherwise the turbo will smoke

although Aaron Cake on their has a welded bung below the oil level in the oil pan that seems to have held up ok. I thought you had a TII lump anyhoo - can\'t you use the flange on the side or is it blocked ?

mpk490p · April 22, 2009, 01:58:21 PM

Quote from: mpk490p;601317ah i like this game 232bhp in 1200kg car + Bish lol

doh typo honest ment 332bhp was compensating for bish!

Archbish · April 22, 2009, 02:14:04 PM

Quote from: Prof;601352I know some of the guys on rx7club.com have used that trick - with a side entry oil return. It must be downhill all the time from the turbo - so that it drains and doesn\'t fill up, otherwise the turbo will smoke although Aaron Cake on their has a welded bung below the oil level in the oil pan that seems to have held up ok. I thought you had a TII lump anyhoo - can\'t you use the flange on the side or is it blocked ?

Sorry, wasn\'t clear - I meant on the horizontal flat part of the front plate where the OMP would be. I\'ve replaced the T2 front cover with a 12a one so it will go on the stock mounts on the S3 subframe... (listen to me talkin\' all techy!)

Quote from: mpk490p;601391doh typo honest ment 332bhp was compensating for bish!

Don\'t make me come over there.... :spank

Prof · April 22, 2009, 04:26:19 PM

Quote from: Archbish;601394Sorry, wasn\'t clear - I meant on the horizontal flat part of the front plate where the OMP would be. I\'ve replaced the T2 front cover with a 12a one so it will go on the stock mounts on the S3 subframe... (listen to me talkin\' all techy!)

I don\'t know what the 12A plate looks like, but if the idea of a nut on the inside holding a threaded bulkhead fitting in place doesn\'t work - is there enough flat area to mount a flange on it ? In theory you only need two smaller holes tapped and one larger hole to let the oil through, or a weld on fitting ?

Archbish · April 22, 2009, 04:52:54 PM

well, conveniently, this is not only a front cover similar to my one, and they\'ve not only drilled it, but it\'s got a nice red arrow pointing to the part! *grin*

This is an oil return presumably for a supercharger, and I need to do similar for the turbo oil return. As it\'s not going to be under any signficant flex or pressure, there shouldn\'t be any issue with putting the bulk head adapter there, and bolting it up. Drilling and tapping it is popular, but I can\'t find an appropriate bit. And it\'s a bit tight for a flange (I think?). And I\'m a bit scared to weld on a fitting onto the plate - I\'d rather hack a hole in it... *GRIN*

Obviously a nut screwed on in a highly oiled environment isn\'t ideal, but what the hey...

Prof · April 22, 2009, 10:55:40 PM

I see the problem now - eek.

If space is tight - what about a fitting that has a right angle - so you could bolt that in - and even chemical metal it in place.

The other alternative is going into the sump.

shaunwil · April 23, 2009, 08:13:32 AM

Go with a BSP fitting. Taps and drills shouldn\'t be hard to come by and you should easily be able to buy a cast 90deg adapter.

Shaun

Archbish · April 23, 2009, 08:31:43 AM

Well, I do have the 1/2 npt tap, but can\'t find a sub Â£20 drill bit in the right size (45/64)... The hose end I have is a long 90 one, and that can be easily bent or straightened as required, and the bulk head fitting should allow it to fit without issue, without having to be so very tight on the hole tolerances. (It\'s matching the technique to my abilities as well... *grin*)