is it possible to outfit a Z with the Q45 v8, the VK45DE?
#1
is it possible to outfit a Z with the Q45 v8, the VK45DE?
i read that the v8 that is included in the Q45 makes 340 horsepower and 333 lb-ft of torque. thats alot! and v8's are naturally more responsive to aftermarket mods, especially NA mods. my friend who has a 97 LT1 (Firebird TransAm) put in a cam, headers, exhaust, and intake, and gained a DYNO proven 115 hp. everyone who has sunk money into NA mods for the vq35 have received potent but minimal results and power increases. nothing like 115 of them! i was just wondering if someone had the funds/time/***** to do this, if it was possible and what kind of a power plant that thing could be made into?
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I would personally like to see the VK56 in the Z, twin turbo'd as well
Although thinking about it, with a VK45 or 56, you still back at square one with the engine buildup. Rods, pistons, crank, heads, valvetrain, etc. You could probably just use the throttle body off of the VK45 or Titan models. But not sure what ECU you'd have to go with, although I'd imagine it'd be one of those cars ECU. The cost of the turbo's alone for each side would be probably in the 2k range each. (I'd look at GT42's). Not to mention trying to figure out how'd youd mount the massive tranny to it (which I think is only available in auto correct?) And how to cool all of it down with a larger radiator, IC as well. The costs would be quite high, but overall, you'd surely have one helluva fast Z with a "truck" motor
Although thinking about it, with a VK45 or 56, you still back at square one with the engine buildup. Rods, pistons, crank, heads, valvetrain, etc. You could probably just use the throttle body off of the VK45 or Titan models. But not sure what ECU you'd have to go with, although I'd imagine it'd be one of those cars ECU. The cost of the turbo's alone for each side would be probably in the 2k range each. (I'd look at GT42's). Not to mention trying to figure out how'd youd mount the massive tranny to it (which I think is only available in auto correct?) And how to cool all of it down with a larger radiator, IC as well. The costs would be quite high, but overall, you'd surely have one helluva fast Z with a "truck" motor
Last edited by Juztin; 08-20-2004 at 04:22 AM.
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I suppose anything is possible. check out what these guys are doing....lol
http://www.vorshlag.com/ls1bmw5.asp
talk about a sleeper eh!
http://www.vorshlag.com/ls1bmw5.asp
talk about a sleeper eh!
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Even if it is possible why not just spend the money on FI. The Z is heavy enough as it is. Plus the amount of power gained from aftermarket parts has a lot to do with how well the manufacturer tuned the car. If they did a poor job a the factory then you will see more gains than when trying to mod the Z
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You could swap anything in there with enough cash.
VK45DE, VG30DETT, SR20DET, RB26DETT, 2JZ-GTE, LS1, 13B-REW, ANYTHING if you want to spend the money.
However, no matter what you swap in there, you're solving a problem that doesn't exist. It's cake to make power with the VQ35DE. EASY. The block is strong as hell, and with the money you save by not doing a complicated engine swap, you can buy a forced induction setup and build the motor. Hell, even the stock open deck sleeves are supposedly good for over 500 RWHP. If your goals are beyond that, sleeve the block as well. You'll still spend much less than you would with an engine swap and bolt ons.
And to all the RB sackriders out there.. I've said it before, and I'll say it again. The RB does not have more "power potential." The VQ block is just as strong, and it has much larger displacement. The VQ head design is better and the valvetrain is a LOT better. The only difference is that the RB has had over 12 years of aftermarket development. Give it a year or two and see if you really still think an RB swap is the answer.
VK45DE, VG30DETT, SR20DET, RB26DETT, 2JZ-GTE, LS1, 13B-REW, ANYTHING if you want to spend the money.
However, no matter what you swap in there, you're solving a problem that doesn't exist. It's cake to make power with the VQ35DE. EASY. The block is strong as hell, and with the money you save by not doing a complicated engine swap, you can buy a forced induction setup and build the motor. Hell, even the stock open deck sleeves are supposedly good for over 500 RWHP. If your goals are beyond that, sleeve the block as well. You'll still spend much less than you would with an engine swap and bolt ons.
And to all the RB sackriders out there.. I've said it before, and I'll say it again. The RB does not have more "power potential." The VQ block is just as strong, and it has much larger displacement. The VQ head design is better and the valvetrain is a LOT better. The only difference is that the RB has had over 12 years of aftermarket development. Give it a year or two and see if you really still think an RB swap is the answer.
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the displacement alone of a VK45/56 would net you so much more power at the same boost level as the VQ/RB. That's why I'd bother swapping with such a power plant than a 6 banger at that point. Plus if you went up the boost range; say even 1.5 bar, that car would simply be downright scary. Of course you'd probably easily be looking at dumping like 40k in the engine/fabrication/drivetrain. So at that point it'd be cheaper to go with the RB26 though lol.
I'd think it'd be a good setup for a pump gas kinda car if you still wanted insane power levels. I'm sure TS will have one heck of a beast when they finish it. Well provided the VK doesnt turn out to be a weak motor.
Good point Vivid, I'd definately worry about the balance of the car cause I'd say you'd throw off the overall feel of it.
Interesting concept though none-the-less...
I'd think it'd be a good setup for a pump gas kinda car if you still wanted insane power levels. I'm sure TS will have one heck of a beast when they finish it. Well provided the VK doesnt turn out to be a weak motor.
Good point Vivid, I'd definately worry about the balance of the car cause I'd say you'd throw off the overall feel of it.
Interesting concept though none-the-less...
#12
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Like VividRacing said about the mods, look at the 4.6L stock Mustang, 260hp.
Also keep in mind the two extra pistons need to go somewhere. Where they are going to go is further out over the front wheels, so your handling will suffer and you will need some kind of bulge to cover the monster.
Chris
Also keep in mind the two extra pistons need to go somewhere. Where they are going to go is further out over the front wheels, so your handling will suffer and you will need some kind of bulge to cover the monster.
Chris
#13
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Originally posted by HyperSprite
Like VividRacing said about the mods, look at the 4.6L stock Mustang, 260hp.
Like VividRacing said about the mods, look at the 4.6L stock Mustang, 260hp.
anyways, it would be cool to see a v8 under a z.
personally, if i were to do an engine swap, i would go with the rb26dett also like GPorsch... but, i have no money so it is a moot point for me.
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Originally posted by VividRacing
The RB can easily be made to have over 1000 hp. I would take an RB over any other motor.
The RB can easily be made to have over 1000 hp. I would take an RB over any other motor.
A VK45DE makes ~250rwhp on the dyno, seems like a lot of work to get an extra 10-15hp. Not to mention there's no guarantee that it will respond like an LT1/LS1 to mods either. Look at the Z33 engine, you don't get remarkable gains from bolt-ons.
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Originally posted by VividRacing
The RB can easily be made to have over 1000 hp. I would take an RB over any other motor.
The RB can easily be made to have over 1000 hp. I would take an RB over any other motor.
I guarantee that I could build a VQ35DE to that level of power for less cash. Much less. The RB won't make 1000 on the fully stock bottom end. It requires internals for that level of power, just like the VQ.
It would be ludicrous to swap an RB in for any reason other than to prove you can do it.
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Ya I posted a similiar thread over at freshalloy and didnt really get to many responses. Im intrested in seeing if the V8 really weighs that much more than the V6. The results I was hoping for would be similiar to the IS430 (an IS300 with a GS430 V8). In swapping out the SJZ iron block, with the aluminum 4.3L V8, they only gained 2 lbs total (with a 100 hp increase).
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Originally posted by G35sDriver
Ya I posted a similiar thread over at freshalloy and didnt really get to many responses. Im intrested in seeing if the V8 really weighs that much more than the V6. The results I was hoping for would be similiar to the IS430 (an IS300 with a GS430 V8). In swapping out the SJZ iron block, with the aluminum 4.3L V8, they only gained 2 lbs total (with a 100 hp increase).
Ya I posted a similiar thread over at freshalloy and didnt really get to many responses. Im intrested in seeing if the V8 really weighs that much more than the V6. The results I was hoping for would be similiar to the IS430 (an IS300 with a GS430 V8). In swapping out the SJZ iron block, with the aluminum 4.3L V8, they only gained 2 lbs total (with a 100 hp increase).