Jump to content
SAU Community

Recommended Posts

Thanks that would be great!

I'd be keen to hear more about lowering the engine. I know several RB30's have been put in at stockish heights, but everyone seems to do it differently. There's a market for bolt in mount kits, so everything needed to install RB30 to R32GTR in one package.

that guy simon has the worlds best kept secret on lowering the engine but he won't let the cat out of the bag

.I have 1 theory which I've discussed with another mechanic and would work

I heard of a trick using rb20 engine mounts which lowers it 10-15mm. Though dont know how accurate that is as I havent done it myself.

How much lower would the engine need to sit in order for the timing cover to not hit the bonnet bracing? Would 20mm drop be enough?

I heard of a trick using rb20 engine mounts which lowers it 10-15mm. Though dont know how accurate that is as I havent done it myself.

How much lower would the engine need to sit in order for the timing cover to not hit the bonnet bracing? Would 20mm drop be enough?

I recently did a 26/30 for someone. It required an 8mm drop, bonnet support cut out towards the front and the twin turbo 'badge' shaved off the twin turbo pipe to make it smooth.

With all that, it only just touches by a whisper.

With a standard bonnet I'd say 25mm would see it clear with no other changes.

I'm fairly sure RB20 mounts are the same height as GTR but I could be wrong. The other problem with lowering the engine in the subframe is the clearance between the sump and the subframe is only about 15mm at best from factory. You could possibly go 10mm of that but I reckon driveshaft clearances would have to be considered if you did

I recently did a 26/30 for someone. It required an 8mm drop, bonnet support cut out towards the front and the twin turbo 'badge' shaved off the twin turbo pipe to make it smooth.

With all that, it only just touches by a whisper.

With a standard bonnet I'd say 25mm would see it clear with no other changes.

I'm fairly sure RB20 mounts are the same height as GTR but I could be wrong. The other problem with lowering the engine in the subframe is the clearance between the sump and the subframe is only about 15mm at best from factory. You could possibly go 10mm of that but I reckon driveshaft clearances would have to be considered if you did

exactly what i did to mine - cut the bonnet brace above the front cams, took off the twin turbo badge & milled off the boss for the badge.

funnily though, i had to run the bonnet without the insulation as this was starting to rub the paint off my newly painted covers. that is how tight it was under there!

I recently did a 26/30 for someone. It required an 8mm drop, bonnet support cut out towards the front and the twin turbo 'badge' shaved off the twin turbo pipe to make it smooth.

With all that, it only just touches by a whisper.

With a standard bonnet I'd say 25mm would see it clear with no other changes.

I'm fairly sure RB20 mounts are the same height as GTR but I could be wrong. The other problem with lowering the engine in the subframe is the clearance between the sump and the subframe is only about 15mm at best from factory. You could possibly go 10mm of that but I reckon driveshaft clearances would have to be considered if you did

I was thinking if you could achieve say half inch of lowering engine towards sub frame via engine mount mods and then lowering sub frame half inch off chassis rail then you would be pretty damn close and both of those things are very straight forward and have probably been done before. But as you said you would need to look at drive shaft clearances and angles.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • A few small updates since the previous post and lessons. I decided to do a little interior light upgrade on the 110. I quite like the iilumo items, even if they're a bit of a premium over other brands. You'll also note the Stedi Fogs, that will go into the S15 fog lights as I needed to match the bulbs since I got the new ones earlier. I hope they fit as the body is quite a bit longer than your normal bulb.  Annoyingly, I managed to trip the fuse, which normally wouldn't be an issue until I located the fuse. I can't say I've ever come across this. I had lucked out that someone nearby had a spare, but oddly enough Toyota dealerships seem to keep this in stock. I ordered some to keep in my stash and as luck would have it, someone else nearby tripped the same fuse so I passed on the favour.  I also did a little service on the 110 ahead of some additional work coming up. It's been annoying that Goleby's stopped carrying this particular HKS filter for the 110, so now I need to keep them on order from Japan. I also took the opportunity to install a bash plate and number plate riser. The plate riser is such a cheap but nice fix to help really tidy up the car. I'm tempted to now also replace my headlights, on this car. Both items were from Project Aero.    I also needed to replace the rear tyres on the 110, and after trying to get it aligned learnt that I need to replace some bushes in the front end, so that's next.  Closing out this update with a nicer picture as always! 
    • Yeah mate, never miss it.
    • Any going to watch World Time Attack at SMSP this year?
    • Appreciate the correction on the "ground", that will make a huge difference to looking at this. That makes complete sense about AF70/AF71 which is what I had come down to being the issue, one of these. I'll have another look in the ignition wiring when I get a chance next week. I'll also make up a jumper wire for running that AF73 test.  ECU is fine, relay itself is fine, pump harness is fine and the pump itself is fine. I am going to upgrade the Walbro 255 anyway with a DW300 I have since I need to replace the fuel sender and I'm going to upgrade the FPR with my chasebays kit ready for new plenum/injectors/dbw, but I'll get this working first. That's why this is so frustrating. 
×
×
  • Create New...