qx56de swap!!!!!!!!!!!????????????

[qx56tz31zx]

i got a 87 z31 coup 5 speed gutted ready 2 drift. with a little cash in pocketi just need to get some power 2 tha wheels what motor??rb26 is expensive and you have 2 baby sit 270hp ttvh45de v8 fuel injected nice! 270hp+2 many vgs 302 305 350s:(qx56de just wow think about it turbod nice!! hp??????no bswhat transmission what kinda transmission out put shaftwhat trannys will bolt uprear or front sump oil pan i can make a oil pan motor transmission mounts drive shafts!!

[evildky]

I do love the 56 but it won't be easy, to m knowledge there si no manual tras taht bolts up to it,you you'l have to fab ana dapter plate and flhwheel spacer to sue the trans of your choice, might even have to fab the flywheel!? and therun out of the imput shaft to the pilot bearing is very important, get ti wrong and the engine and tras will self destruct

ans the Z31 is setup for a rear sump I have no idea whats ont he 56

imho for cheap power int he Z31 you do the turbo swap, 400 whp on stock internals is very common, for the sleeper cruiser that can hold it's on the vq35 swap is a great option figure 240 whp ish, and if you don't want to risk getting whipped by VG30ET powereed Z31's add some turbo's to that VQ

[qx56tz31zx]

vk has a front sump 06 titan came with a 6 speed manual or 5 speed auto. i wouldnt mind going auto wit slap shift, i seen the vk in a qx suv i think?? no manuals..i no the vh just take the auto and cut the bell housing and weld a plate to fit the z32 gear box and tail might try that rout?any one seen the vk carbed? or dual carbed?so a carb would b the rout to go 4 now 2 boost her.

some vg30e parts for sale ;bored .50 over pistons 80.00 0b0complete gasket kit 100.00stock block 30.00stock heads 20.00 4 bothoil pan 5.00

[NSR_s30]

Wow, definitely sounds like quite the project.

[evildky]

titans only get the 5 peed auto afik

[ravera]

+1 I've never seen ANY nissan, or toyota for that matter, V8 that came factory with a standard trans.

[qx56tz31zx]

theres a 6 speed on ebay 4 a titan. 06 didnt say vk or not.305hp 379lb stocksupercharged 400hp+ 12psii need to find out bout the carb idea.. or if any one boosted it with the stock ecu??

[qx56tz31zx]

for every answer theres more questions.....

z32 transmission is the way to go fly wheel bolts up and with a adaptor plat, the transmission and starter will;) i found enouph to get started ill post up pics when i get started if any one interested?

[evildky]

every titan listed on ebay right not is listed an an auto, and if someone thinks they got a 6 speed auto, well they are wrong

[nics fairlady]

im wanting to do the same swap in my 73. the only std. trans that i've seen on them is the 6spd out of the 350's.

any idea on how much that motor weighs?

[qx56tz31zx]

i herd 80lb less than ka24det not surethe transmission was for a other motor that came in the titan but it had a shifter and it was a 5 speed will not work thoiv seen the z32 work with a custom mount n/ai bolted my 87 z31 transmission to the z32 block starter issues tho.im make a plate 4 the z31 transmission and keep my stock drive shaft 4 nowi have the ka gear box already in the z31 bellhousingthe ka gears are short and wont handle what im shooting for tho.any way i can beef it up?

[ravera]

No way it weighs 80lbs less than a KA even if it has an alloy block. Hell, it could have a block made out of Air and it would probably still weigh more. The engine is that large. I found a PDF that shows titan engine design. It stated the motor weighed 228kg which is 501.6lbs for those of use in the imperial system.

For a comparison the VG30DETT is about 10 lbs lighter and it's a boat anchor for a V6. The KA24DE weighs about 370lbs. That's about 210lbs shy of being 80lbs lighter than the KA. Maybe the engine block alone is 80 lbs lighter than the entire ka engine.

For comparison, the LS1 weighs 430lbs according to Hot Rod mag.

[qx56tz31zx]

the only thing forged is the bottom end(stock)and coupl people talking bout putting the 45 heads on the 56 why?would it because the parts or cheaper to build a good top end ?

[ravera]

VK45 not VH. The 45 heads have Ti Valves, dual VVT and bigger cams. The VK56 is a truck motor and its powerband proves it. Even with those gorgeous DOHC heads, fully counterweighted crank, and lightened reciprocating assembly, it basically runs out of wheeze at about 5k. The 45 heads may or may not have bigger ports, it's a contradicting set of claims, but with the Ti valves and cams it should make for a screaming 56.

[qx56tz31zx]

true ever seen one carbd? or dual

[ravera]

That's a VH41 sleeved to 4.0L for aussie dirt track racing. Why would you want to go carbies on an FI motor though? The only reason it's done in superstock is because they're required...

[qx56tz31zx]

the picture says it all and i just wanna slap a turbo or 2 and tune the carb. i dont have a thousand possibly more to drop in2 injectors rails intake manifold ecu ecu tuned when could bolt on a carb. with a custom intake manifold! it looks great thanksima go with the carb set up for now.

[ravera]

Quick question though, How are you going to fire the COP? The engine has no distributor nor does it have a prevision for one. The later models have Variable Valve Timing as well which would have to be controlled, for that price you could megasquirt the thing and have full EFI. Another problem is the Hood. The stock EFI mani wont clear, iirc, so the people that were trying were trying to come up with a way to make a custom, more compact one. I figure you'd need a big ol' scoop to fit a carbie on it.

[evildky]

that engine appears to have electromotive ignition, which generally has a crank mounted trigger wheel, you can fire cop by way of megasquirt or similar using a flywheel mounted trigger, crank mounted trigger, cas ect, most likley you'll want to wire them in a wasted spark configuration, thats hwo those dual packs ont he firewall are generaly configured

[kasilvia]

I would stick with the EFI setup honestly. Carbs are old school, and if you dont have a couple thousand to drop into injectors and a standalone, how are you gonna afford to pay for a custom carb manifold, the carbs, and then custom ignition system? Seems to me a standalone and some injectors with a good fuel pump and a knowledgable tuner is the route to go. Honestly, the best investment would be dropping a RB25 with a big single on it. Stock bottom end should hold up to 500hp or so. Not a V8, but still a hell of alot cheaper than a custom 5.6l swap. Of all the places to skimp, the fuel and ignition systems are not the place to do it. Spending 8grand on a custom fabricated swap only to cheap out on the fuel/ spark= 8k dollar boat anchor.

[qx56tz31zx]

i can make everything plus i have 2 carbs and hats, inline pumps, and fuel line laying around i want no if any one has a predicted out come of a dual carb setup with a nice turbo or blower. i own a z31 i am old school!!!

[evildky]

when running forced induction the turbo ir blower will determine the maximum airflow which determines maximun horsepower

[XJared]

VK45 not VH. The 45 heads have Ti Valves, dual VVT and bigger cams. The VK56 is a truck motor and its powerband proves it. Even with those gorgeous DOHC heads, fully counterweighted crank, and lightened reciprocating assembly, it basically runs out of wheeze at about 5k. The 45 heads may or may not have bigger ports, it's a contradicting set of claims, but with the Ti valves and cams it should make for a screaming 56.

The 56 heads have better ports than the 45 actually. The cam profile and intake manifold are the restriction on the 56. Other than that it's a big port perfectly square stout as hell engine. JWT makes cams and springs(which are VQ35 dimensions) and Extrudabody has an ITB setup.

[XJared]

BTW, not sure if anyone else answered this, the VK56 is rear sump, no manual transmission bolts up, but there are a few custom plates floating around out there that will bolt up the Z33 VQ35DE 6sp.