q45 in s15 , rhd starter hits steering rack

[gdz1la]

any suggestions for getting around this problem? anyone done this before?
Modified by gdz1la at 10:34 PM 6/27/2006

[Mettler]

Never had that problem sorry, VH41 starter is on the other side of the motor.

Anyway I thought the Z32 gearbox had a starter on it ?

[Ezekial]

Z32 starter is on the box and wont be anywhere near the steering

i know what you are saying though. factory starter location is a big issue

[gdz1la]

my vg box had no starterwont that be an issue with the vh ring gear? that should solve the problem but may be in the way on that side too ill see,

i took starter off and it fits finethe exh manifolds will have to be log style manifolds what style did you guys do?i was planing to flip the std ones but both ways stick out to much

Modified by gdz1la at 10:25 PM 6/27/2006
Modified by gdz1la at 10:33 PM 6/27/2006

[gdz1la]

with the alt and ps pump on there is going to be bugger all room for the turbp headers up front.. any suggestions

[gdz1la]

here some pictures on gaps between rails, i will prob be forced to car the front off forward of strut towers

[91RMKS13]

Let me get this staight. This is an S15 with a VH41?

[Ezekial]

my vg box had no starterwont that be an issue with the vh ring gear? that should solve the problem but may be in the way on that side too ill see,

Z32 flywheel + Z32 starter = no problems at all

Quote »the exh manifolds will have to be log style manifolds what style did you guys do?i was planing to flip the std ones but both ways stick out to much[/quote]Use 44 mm diameter steam pipe. There looks to be plenty of room there for a good manifold setup (not log style) ...

For 4-2-1 (turbo) join these cylinders1-3 7-5 8-4 6-2

ie.looking from on top

gearbox 8 7 6 5 4 3 2 1 radiator

[gdz1la]

plenty of room? remember ther is not alt ps pump or belts on yet? im running the turbo up front remember the vg starter will only work with an adaptor platwe and a vg flywheel tho?and ill have to space the flywheel so the starter reaches the ring gear?any one near new zealand got an adaptor they wana sell me?

[Mettler]

Holy crap gdzila... if you pull this off, you're a legend. That's like, no clearance at all !~

[gdz1la]

you recon it will be a mission..?? i got a rb26/30 as a backupwich as a last resort ill put that in, and sell 45 and buy a v41 witha starter on opposite side, no dodgy guides and a alt on top loland slowly do it, otherwise ill rush the 45 in..,

[Ezekial]

try doing it in an S12 or a TRX bluebird then

you wont regret the VH45DE. if you can only get it log style then so be it ... you'll still make more power than the RB30/26 combo

[Mettler]

Yeah mate stick with a VH engine... even if you need to swap to a 41! Still better than one of those RB engines. More displacement & reliability for the same weight with a VH, you can't go wrong really !

You can always rebuild a VH41 with VH45 crank, rods & pistons if you want that extra 400cc, and then you get the engine fitting nicely in there too !

[gdz1la]

can you help me out with a few things then. im on a very tight bugeti have a 26/30 allready if its going to cost over 1000 ill prob passi need

z32 starter or similar... skyline?flywheel to suit... and someone to adapt the bellhousiung & a rb osgikin triple plate clutch...

make manifold.. looks so stressfull i dont know even where to start.make mounts, it looks like a 2*6' block of urethane make work or should i use alloy or steel?once that donev mount coolers mount turbo somewhere?? to allow a 3.5" exh to pass to rear (im really struggling for room now)

anyone wana trade for a 41??

[mtcookson]

From HybridZ.org

Frame rail mods to a Datsun 240Z (this sucker has even tighter clearances)

http://album.hybridz.org/data/500/DSC01403.JPG

(strange... i can't hotlink the pictures either... even from my personal website)

[Mettler]

It'll definitely cost you over 1000.

Here's what you can do using the cheapest/most factory gear for the conversion.

Z32 starter, dunno how much, but my guess is $250-$300

Flywheel, well you can use one of two flywheels, the first being a factory 300ZXTT flywheel. I priced one of these up last year, the only one in the whole country that I could find was on this national parts database, and it was $700 used.

The other flywheel option is to buy my custom designed lightweight alloy/wear plate insert flywheel for $1k, specifically made for the VH41/VH45 engine. I made my own because I figured if it's going to cost $700 to buy a ****ty used factory item, I may as well build my own for a couple of hundred bucks more, and hey, mine's under 5kg and is going to perform awesome. It's designed to suit a 9.1/2" diameter heavy duty clutch/pressure plate combo.

Someone to adapt the bellhousing... the guy who did mine may be keen, though if you have access to equipment, it's pretty damn easy to do yourself. All you do is measure up the distance from spigot bearing in the crank, to the bellhousing mating face on the block. Take off the thickness for the metal spacer plate from this dimension. Now measure from the mating face of the bellhousing to the start of the spigot shaft, figure out the difference between them and hey presto! You now know what dimension you need to mill your factory bellhousing down to... minus a bit extra for the alloy plate you have to weld on and drill out to make it bolt to the VH engine.

The manifold looks to be the easy part... just make a plenum style tube for each side with runners intersecting them, use a couple of bends at the front of the motor to duct the tubes 90 degrees towards each other & meet in the middle, and weld in the final piece of tube where they meet to duct to the flange of the turbo. Weld in your O2 sensor thread somewhere at the front, and weld in somewhere for the wastegate to go.

I'd make urethane mounts for the motor, steel is going to twist your chassis with the amount of torque that motor will produce.

Basically, you've taken on a massive mission. I've been working on my manual converted VH41 V8 conversion for 9+ months now. It's nearly ready, though it fit into my choice of car a hell of a lot easier than a VH45 in an S15. I don't envy your mission, but it'd certainly be awesome if you pulled it off.

Just be aware of one thing, conversions always end up going to nearly twice your budget.

can you help me out with a few things then. im on a very tight bugeti have a 26/30 allready if its going to cost over 1000 ill prob passi need

z32 starter or similar... skyline?flywheel to suit... and someone to adapt the bellhousiung & a rb osgikin triple plate clutch...

make manifold.. looks so stressfull i dont know even where to start.make mounts, it looks like a 2*6' block of urethane make work or should i use alloy or steel?once that donev mount coolers mount turbo somewhere?? to allow a 3.5" exh to pass to rear (im really struggling for room now)

anyone wana trade for a 41??

[Ezekial]

you can get a brand new JUN lightweight chromoly flywheel for VG30DETT for $500 NZ + freight

in AUS you can get gearbox, starter and flywheel second hand for anywhere between $350 - $800

[gdz1la]

i may of found another z32 box and flywheel for 1100, so prob easier if i get that that way ill have a spare, mettler can you suggest anyone in chch to fab the belhousing adaptor?

[Mettler]

Sorry gdzila I'm up in hamilton, don't know anyone from chch !

I suggest looking around various engineering shops... find one with someone enthusiastic about V8s & your conversion, they'll be more willing to do a good job of it, and possibly even cheaper. Just make sure you explain to them what I told you, about measuring up the clearances etc.