Underground Motorsports: Project 800HP RB26DETT 1998 240SX

[Sil240]

"I recommend this on any series RB motor, but especially the 25 and 26."

The 20 doesn't have the same problem or it is different?

[Darius]

I believe it is an issue with all RB's. CarlH has two 3/8" brass fittings instead of one huge -12AN fitting. I have done the same, but am waiting on my next phase to plumb it back to the 3/4" fitting from the turbo oil return.

I don't see how a -12AN fitting is going to fit between the head and the fire wall, but maybe you have looked at that already. I have about 0.25" between my brass fittings and the fire wall and that is with some pounding in of the firewall. Probably would have touched otherwise.

[underground]

I believe it is an issue with all RB's. CarlH has two 3/8" brass fittings instead of one huge -12AN fitting. I have done the same, but am waiting on my next phase to plumb it back to the 3/4" fitting from the turbo oil return.

I don't see how a -12AN fitting is going to fit between the head and the fire wall, but maybe you have looked at that already. I have about 0.25" between my brass fittings and the fire wall and that is with some pounding in of the firewall. Probably would have touched otherwise.

EDIT: I can not link to Fresh Alloy, as apparently that website is banned. But there is a Group Buy on the Head Mod pieces in the GTR Subsection, and you are welcome to read more about it there.

[BoostFab]

damn that hole is bigger than my sink draining hole... lol

[underground]

Edit: RB25DET 5Spd transmission w/ Exedy Triple Disc Clutch will be used for the Stage 2 build.
Modified by underground at 7:31 AM 5/9/2007

[underground]

Yesterday, Andy at Southern Imports in Murfreesboro, TN (Mechanic on Project 240SX) installed the Mazworx Axles w/Hubs (http://www.mazworx.com) and SPL Pro Aluminum Subframe Fushings. (http://www.splparts.com)





A little brake cleaner and some black spray paint really improved the look of the spindles.

As you probably notice, the threads on the hubs are extended for use with aftermarket drag wheels.

[Shocker]

what kind of 60ft's are you cutting with the megan coils and also tires that you are using?

[gawdzilla]

what kind of 60ft's are you cutting with the megan coils and also tires that you are using?

his car isnt running yet?

[Shocker]

his car isnt running yet?

this I know, was talking previously.. as in last year.

[ATpossible]

sorry for the random question but where did you purchase your spark plug cover? the skyline gtr nissan...

i've only been able to find it at one place and it seemed way to expensive

thanks for the info

[Booztd 3]

sorry for the random question but where did you purchase your spark plug cover? the skyline gtr nissan...

i've only been able to find it at one place and it seemed way to expensive

thanks for the info

it is only the decal that sais 'R34 GTR' and you can buy them from RB Motoring. They are typically 80 Bucks

[gawdzilla]

it is only the decal that sais 'R34 GTR' and you can buy them from RB Motoring. They are typically 80 Bucks

its a nissan japan part. you can get the PN in FAST. regular price is like $43 or something IIRC. definitely not 80, although that might be the case for someone stateside to have it in stock.

[ATpossible]

sorry, dont mean to thread jack just wanted to know how i can get this

it is only the decal that sais 'R34 GTR' and you can buy them from RB Motoring. They are typically 80 Bucks

really cuz it seems to stick up(3Dish) like the stock cover for the r32?not sure tho since i've never had one but have always wanted one

its a nissan japan part. you can get the PN in FAST. regular price is like $43 or something IIRC. definitely not 80, although that might be the case for someone stateside to have it in stock.

PN? as in part number? thanks for info ill try harder to find that.

[Carl H]

any rb motor that will see high rpm use or extended track work should add in external drains...dual or single, do something!

[Shocker]

any rb motor that will see high rpm use or extended track work should add in external drains...dual or single, do something!

he is a -12 an line.

[underground]

Just uploaded, photos of today's progress:

Desynz Motorsports Oil Return Head Mod Kit:





Polished Balance Tube:





ATI Race Engine Damper:

[underground]

what kind of 60ft's are you cutting with the megan coils and also tires that you are using?

I am using Apexi N1 Pros, however I will be switching those out for HKS Hyper Drag's this season.

If Megan made a low spring rate coilover, I'd be all over it.

[Kansei240sx]

I've got a question.

If say, i track my car, i will be hitting revs no further than 6800 (ignition cut) (not fuel cut) Will if not later on should i be looking into the head drain mod? Im on the stock turbo and motor basically, i have an aftermarket intake manifold, and i plan on GT35R and possibly cams later on, if i take the head out to do a gasket and resuface, would you think its still worth it?

[Shocker]

I've got a question.

If say, i track my car, i will be hitting revs no further than 6800 (ignition cut) (not fuel cut) Will if not later on should i be looking into the head drain mod? Im on the stock turbo and motor basically, i have an aftermarket intake manifold, and i plan on GT35R and possibly cams later on, if i take the head out to do a gasket and resuface, would you think its still worth it?

yeah I still did it, But i'll be taking my 25 to 7700-7800 rpms. Id rather be safe than sorry. Plus its easy and cheap.

[underground]

I've got a question.

If say, i track my car, i will be hitting revs no further than 6800 (ignition cut) (not fuel cut) Will if not later on should i be looking into the head drain mod? Im on the stock turbo and motor basically, i have an aftermarket intake manifold, and i plan on GT35R and possibly cams later on, if i take the head out to do a gasket and resuface, would you think its still worth it?

I would, and I would also install two Tomei Oil Restrictors in the block when you get head pulled off.

[underground]

Getting Closer:

[Ramius83]

Wow man, looking good.

What type of RPM/response are you looking to get full boost by with that turbo? I am still debating the 2530s or a single turbo.......hmmmmm......

[underground]

4500 RPM.

[240sxHitman]

The more I see these pictures, the more I wish i had money to do a Rb26dett swap.

Keep up the good work, car and motor are pretty sick

[Ramius83]

Did you have to modify the Greddy exhaust manifold in order to make it fit in the chassis, or is it totally unmodified. Thanks for your help man.....

[gawdzilla]

Did you have to modify the Greddy exhaust manifold in order to make it fit in the chassis, or is it totally unmodified. Thanks for your help man.....

pretty sure the wastegate tube needs to be cut off/modified to clear the column on LHD

[FAST-DATSUN]

we have to move the waste gate to clear everthing.....on the greddy manifolds

[blurrbosi]

I Love the valve cover/s on the 26's... OMG it looks sooo smooth

[underground]

Yep, the wastegate piping has to be moved, and I'll know more this week, but it appears to be fairly labor intensive.

[underground]

Speed by Design (Setrab Model #925) Oil Cooler Kit for the 240SX