OMG! Check out this Nissan Z mod
11-06-2009, 10:22 PM
#17
OK I have looked into this also, I found a gearbox that is made by the same manufacturer as our ZF, got the measurements and it is well capable of 600 ft pounds of torque parts are reasonable also. The good things were the half shafts bolt up and the mounting points are workable, it will fit in there but the bloody input shaft is offset to one side!
11-07-2009, 12:25 AM
#18
Race Car
OK I have looked into this also, I found a gearbox that is made by the same manufacturer as our ZF, got the measurements and it is well capable of 600 ft pounds of torque parts are reasonable also. The good things were the half shafts bolt up and the mounting points are workable, it will fit in there but the bloody input shaft is offset to one side!
Dan
'91 928GT S/C
475hp/460lb.ft
11-07-2009, 02:03 AM
#19
Hi Dan, I would have thought that is a very big job, one that a gearbox manufacturer would have to do for you and that would be $10K there at least. The box is out of a Ferrari 575 but it is the same box as the 599. It is basically the same box as the 456 GT but the 575 received upgraded components such as triple cone synchronizers for faster shifts when the F1 option was specified. The box pictured is a manual box. They have a very robust construction and runs even with the supercharged 599 in Forza with 800 hp.
Greg
Greg
11-07-2009, 09:10 AM
#20
Did you see the post in the HybridZ thread with the 928 with a Lexus 430 engine? The guy is taking out the rear transaxle and bolting the tranny to the engine and fitting a more conventional differential. Man that is going to be a $hitload of work, don't know if the reward will be worth it on that one!
11-07-2009, 10:19 PM
#22
Drifting
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A few reasons not to chop your 928:
1. 170 mph is fast enough
2. just doing your maintenance to have a great running 928 is the cheapest way to go
3. You just became a 928 outcast... and may only have 100 928 friends instead of 200
4. Who wants a Lexus or SBC pushrod lump in there when you can have the real thing?
5. It's in poor taste.
1. 170 mph is fast enough
2. just doing your maintenance to have a great running 928 is the cheapest way to go
3. You just became a 928 outcast... and may only have 100 928 friends instead of 200
4. Who wants a Lexus or SBC pushrod lump in there when you can have the real thing?
5. It's in poor taste.
11-08-2009, 03:13 AM
#23
A corvette c5 transaxle is called an mn6 for the standard c5 and I believe mn12 for the z06. I have an mn12 minus the diff sitting next to a 928 parts car with the trans half hanging out... maybe I should see if the two will mate. If the worst case is a custome torque tube, that can be made... anyone mocked up a vette transaxle in a 928 to see about fitment issues before?? Seems like a pretty logical thing to try.
11-08-2009, 12:11 PM
#24
Three Wheelin'
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A few reasons not to chop your 928:
1. 170 mph is fast enough
But 0-60 in 6.x seconds isn't.
2. just doing your maintenance to have a great running 928 is the cheapest way to go
Still not as cheap and easy as maintenance on a SBC. Oh, and your local Autozone carries parts in stock. No having the car sit while waiting for parts. Ever honed your own cylinders on a 928? Not real easy. In fact, most folks just buy another block first.
3. You just became a 928 outcast... and may only have 100 928 friends instead of 200
Can't argue that, but what if you own 2 other sharks that are staying "Pure", can you still sit at the cool kid's table during lunch?
4. Who wants a Lexus or SBC pushrod lump in there when you can have the real thing?
Twice the torque and HP for less than a standard rebuild. 0-60 in under 4 seconds? Yes, sign me up please.
5. It's in poor taste.
Really can't argue that one, my car proved I had no taste long before I yanked it's heart out...
1. 170 mph is fast enough
But 0-60 in 6.x seconds isn't.
2. just doing your maintenance to have a great running 928 is the cheapest way to go
Still not as cheap and easy as maintenance on a SBC. Oh, and your local Autozone carries parts in stock. No having the car sit while waiting for parts. Ever honed your own cylinders on a 928? Not real easy. In fact, most folks just buy another block first.
3. You just became a 928 outcast... and may only have 100 928 friends instead of 200
Can't argue that, but what if you own 2 other sharks that are staying "Pure", can you still sit at the cool kid's table during lunch?
4. Who wants a Lexus or SBC pushrod lump in there when you can have the real thing?
Twice the torque and HP for less than a standard rebuild. 0-60 in under 4 seconds? Yes, sign me up please.
5. It's in poor taste.
Really can't argue that one, my car proved I had no taste long before I yanked it's heart out...
Sometimes folks do things just because it's a challenge. It really doesn't have to make sense. For example on my shark, I had done everything I could for more power short of a SC or stroker. I love my shark but have gotten a little bored fixing the same lump over and over. After the first time you do something it's no longer exciting and fun, it's work. Oh great, another head gasket job to do..yeah! I went with an old school SBC lump for the challenge and fun of it. For the uniqueness of it. For the brutal power a SC or stroker can't touch with out serious time and $$$. Paying $1300+ for a set of cams that would be under $300 on a SBC is just silly.
11-08-2009, 03:09 PM
#25
Race Car
A corvette c5 transaxle is called an mn6 for the standard c5 and I believe mn12 for the z06. I have an mn12 minus the diff sitting next to a 928 parts car with the trans half hanging out... maybe I should see if the two will mate. If the worst case is a custome torque tube, that can be made... anyone mocked up a vette transaxle in a 928 to see about fitment issues before?? Seems like a pretty logical thing to try.
Dan
'91 928GT S/C
475hp/460lb.ft
11-08-2009, 08:51 PM
#26
Burning Brakes
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Man, what a blast from the past. I ran small chevy 240z's for years, last one was a 400 with a turbo350. What an animal. Part of why the 928 appeals so much to me. I rarely painted the 240's, just ran primer, back and forth between gray and rust. Fancy smanchy hot-rods would pull up alongside and look down their noses at the paint... til we ate them for lunch. Ran up and down the hills to Virginia City outside of Reno all the time, what a ton of fun. Problem was the poor chassis just wasn't up to it. Pushed but you had plenty of throttle so no troubles. Now a 928 chassis... argh! That's a different story. Wish I could get the power from my 4.7L that I got from those stone simple small chevy's.
11-08-2009, 11:26 PM
#27
Well I think I will have a stab at slipping the vette trans into place to see what might be in the way. I know with a diff on it, which I don't have at the moment, it is a lot longer than the porsche 5-speed so Im thinking it will run into the tunnel, but worth a look at least. I just have to get down there now...
12-22-2009, 11:02 AM
#28
Race Car
Well I think I will have a stab at slipping the vette trans into place to see what might be in the way. I know with a diff on it, which I don't have at the moment, it is a lot longer than the porsche 5-speed so Im thinking it will run into the tunnel, but worth a look at least. I just have to get down there now...
Dan
'91 928GT S/C
475hp/460lb.ft
12-22-2009, 04:34 PM
#29
Rennlist Member
Quote: Originally Posted by 928andRC51
... 4. Who wants a Lexus or SBC pushrod lump in there when you can have the real thing?
Twice the torque and HP for less than a standard rebuild. 0-60 in under 4 seconds? Yes, sign me up please.
Not to mention taking 100Kg off the front end of the car. will
... Sometimes folks do things just because it's a challenge. ...
... 4. Who wants a Lexus or SBC pushrod lump in there when you can have the real thing?
Twice the torque and HP for less than a standard rebuild. 0-60 in under 4 seconds? Yes, sign me up please.
Not to mention taking 100Kg off the front end of the car. will
... Sometimes folks do things just because it's a challenge. ...
The 928 engines don't have that. The SBC's do. The former are prettier, generally higher tech and have the magic name emblazoned. The latter are more compact (therefore easier to work on) and produce more power per pound and dollar. Because there's engineering beyond just the bolt-up installation in a swap, I would like to see some SBC hybrids tracked and/or running in ORR's. Proof, pudding, all that.
Changing one just to change it is something I'll leave to those who enjoy the challenge, but if I found a nice 928 with a blown engine I'd definitely consider an SBC swap rather than a rebuild or a used engine, even if the cost was about the same.
