Mega Datsuns

[Grendel]

Yea, a V8 Z would be way fun... a SR20 240 would be even better

What would you call that? A 200Z or something

I would take the SR20 over a V8... I was reading that it weighs about the same as a Ford 5.0, but it loves to rev, and can handle high horsepower...

Whats the redline on a typical SBC?

-Grendel

BTW... some guys on hybridz.org were discussing putting in an SR20... kinda interesting...

[-The Stig-]

Hmmm a Typical SBC can red at 5500-5600. Thats a fairly stock motor.

But they obviously make the power down low, making peak torque in the mid 3000 range and peak horsepower in the mid 4000.

This can all be changed with cams and what nots.

They may not rev highlike a SR20DET motor or like other Japanese hi-performance motors. But what they lack in revving capabilities they make up in easy to access grunt... which usually results in tire smoking grunt.

Problem with the 240z, minimal weight so getting it to hook up will be challenge in itself... Should be giggles of fun!

[-The Stig-]

I'll add that, if we wanted high revs, we could build a 327.


They turn high RPMs, like in the 6500-7000rpm range if built right.


Or, take a 400block swap in a 350crank. Make a 377ci. which is just like a 327 but with 50ci more displacement.

The shop that built my 383, offers a 377 option for road racers.

it makes 502hp @ 6500rpm 462ft-lbs@ 4500rpm

only costs $3525.00 too.

Go Speed-o-Motive!

[Grendel]

Damn... 6500-7000 is screaming for a V8... I can only imagine what that would sound like

Still, the guys that were discussing the SR20 swap said it should fit in the engine bay behind the shock towers... dunno if they were right, but that would affect the handling for sure...

I dunno if it would make it handle better or worse without all the weight over the wheels... *shrugs*

-Grendel

[TerminalVelocity]

well, if you rrreeeaaaalllyyyy want it, do it

Just keep in mind, yer nova isnt going anywhere at this rate...

[-The Stig-]

Uh yes I know this haha.

Plan is Finish Nova, Buy Z, Do Swap, Sell Truck...

Then.. mass rallying.

[TerminalVelocity]

ok

Bastard, now I have to get that mustang, and take that 460 and make my own mounts, and my own bell hosing.....GO FORD GO!

But yah, I'd love to see ya do it, and i'd help if ya needed it....i'm just extremly sceptical :flash:

[fast240z]

Originally Posted by RedNeck383

As you said, the V8 240z would just come up to 90% of cars and give them the :finger4: then goodbye.

While still getting mid 20mpg.

How about 100% of the cars which have the displeasure to come up next to me.

Mark

[-The Stig-]

Originally Posted by fast240z

How about 100% of the cars which have the displeasure to come up next to me.

Mark

Nice '71 Mark...


I've got a '72 240z myself now... Stock as hell but that's ok. It's fun to drive. Contimplating LT1/T-56 swap myself... t'would be cool.

[carguyinok]

It looks like you all have some strong plans for the 240Z. IMO jags that run is a damn good book for the V-8 swap. BUY IT and read it cover-cover. Then you wont hit any roadblocks when it comes time for turning the bolts. Another thing you may want to do some homework on is the Scarab Z. It was a company in cali. that did in house conversions in the mid 70's. They also sold do it yourself kit's by mailorder. I had the chance back in 95 to put some miles on a true scarab. I will tell you now it's worth the work That damn car would kick the as end out at over 60 MPH without even trying. I put around 150 miles on it that day and it started a love that wont die
It has taken me years of hunting just to find the car to start with. So many 240z's are just rusty parts cars that would just snap in half with any real power in them. So beware and be picky in what you get for your shell. I have changed my mind on motors three times now. First was a LT1 with a five speed. Then I had a line on a Ford SHO 6 cyl. That would be a killer motor in a Z if you had mega bucks. They can spin a rpm of well over 10g all day long. But parts are big money so that went out the window. Then I found a thunderbird sc with the supercharged 6.
Thought I had it made there fuel injection and supercharged in one nice package. After getting a closer look the supercharger case was cracked.
Turns out I was lucky there. Started looking for parts and found out ford no longer sells parts for it. So that went out the window
Now after TONS of homework I am going with a GM 4.3 V-6. Hell I have even pulled apart a 5.7 and 4.3 on the same bench. The 4.3 is 100% a 5.7 with the front two cyl. cut off. That makes parts easy and on the cheap side. I am just going to buy every thing for a 5.7 pistons rods lifters the works. Then I get 2 cyl. worth of new spare parts up front.
Now the kicker, I am going low compression for a twin turbo on the 4.3.
After crunching the numbers it will be just shy of the stock inline six by about 15lbs and put out 450hp EASY with mild boost It has been done by GM in the GMC cyclone
The big pain in the azz at this time is getting the rearend. More then anything I want to use the jag IRS with the brakes just off the gearbox.
It can take the HP and the clean look of NO brake behind the rear wheel is just hot IMO People see that and there like WTF.
Anyway thats the plan for mine. 4.3 twin turbo five speed and jag IRS.
P.S. If anyone is looking I am selling my richmond GM 6 speed $1800.00 OBO over 3gs new.

[jimberjam]

What about other Nissan engine options? Like an RB series or one of the new VQ v6's? I think that'd be more interesting than a small block Chevy conversion, because everyone uses chevy v8's. If you really need a v8, I hear the VQ-based 5.6 v8 in the new Titan is really strong.

[carguyinok]

What about other Nissan engine options? Like an RB series or one of the new VQ v6's? I think that'd be more interesting than a small block Chevy conversion, because everyone uses chevy v8's. If you really need a v8, I hear the VQ-based 5.6 v8 in the new Titan is really strong.

I feel the #1 reason for the V-8 swap is the fact that a V-8 will almost just bolt in It's even been said by many people that the early Z was ment to get a V-8. But never did due to the new EPA rules of the 70's.
For the RB swaps. Yes some people have done it. But the amount of work that takes makes most peoples heads hurt just thinking about it. It's FAR from a bolt in swap. Plus just getting a RB here in the states is just this side of an act of god
I agree that the newer V-6's & V-8's from Nissan would be a nice match. From what I have seen there just to wide So here again it would call for a TON of custom fab work. Plus the cost of repair and or parts.
For me, I know I only need to bolt in parts for the swap. This way if later in life I get the want to put the matching number motor\trans back in I can With the way the market for the rust free 240Z is growing. I feel that keeping stock parts to bring it back some day is a good option to have. If you go cutting it up for a swap that wont happen.

[-The Stig-]

I'm looking into the RB25/26DETT swap... Not going to say much untill I've talked to the guy again.

If his price quote to me was accurate, the heart of Godzilla may soon sit inbetween the fenders.

[datsunadict]

Who here has actually done this conversion??

I have a 78 280Z with the L28 built to the nuts. I am wondering if the sale of this engine and tranny would be enough to help finance the SBC conversion for my car??

Can somebody give me a list of things i would need to do a swap, including what manufacturers make the parts, and how i can get them.

If anybody knows of a book in circulation that spells it out, that would be nice.

[-The Stig-]

Originally Posted by datsunadict

Who here has actually done this conversion??

I have a 78 280Z with the L28 built to the nuts. I am wondering if the sale of this engine and tranny would be enough to help finance the SBC conversion for my car??

Can somebody give me a list of things i would need to do a swap, including what manufacturers make the parts, and how i can get them.

If anybody knows of a book in circulation that spells it out, that would be nice.

Jags That Run

Go there, they have a book on swapping Chevy V8's into Datsuns. They also sell kits to do so.

If you're truely interested in doing the swap, I urge you to buy the book and read it cover to cover before beginning. Just so you know what you're getting into and you don't get stuck in the middle of your project and quit.

Good Luck, Hopefully soon I'll have a LT1/T-56 swap into my Z. I've given up on the hopes of a RB26DETT swap. Just the cost alone of swapping in the Skyline motor would be alot, then the fact that if anything were to happen to it. Parts costs would be mega expensive. So I'll stick to the much lighter and highly effective Chevy LT1 350 and a Borg-Warner T-56 Six speed.


Soon is a relative term... it may never happen but a guy can dream can't he?