by memory the bottom end had a z24 crank and z22 rods i think? but
the red line is set on the computer at 6500 cause ( i was told,
doesn't mean it's true) the cam is'nt made to rev any more than 6,500
but the guy who built the motor said 8,000 is optainable but then i
will loose my down low revs and would loose some driveablity ( i dive
my car every day to work etc )
I was checking the fuel consumption my self this week 30 liters gets
me 200miles which is about 320km I think that's driving up hills and
along free ways and in city traffic and i have noticed that if my
tyres and at 35psi not 30psi it makes a huge diff in fuel
consumption. This week if been giving my car more stick and it's
around 180 miles for 30 liters.
catcher
tim
>Tim,
>
>Thanks for your comments it's interesting to hear from another stroker
>owner. Is the bottom end totally stock? If so then 6500rpm is a reasonable
>redline for such a torquey engine! This would be the advantage of using the
>20mm taller Z24 block and 165mm Z24 rods over L20b gear. Do you know if the
>redline set to this because of the injectors leaning out or for precaution
>against motor damage? How's the fuel consumption now? Sorry about all the
>questions, I wanted to get information from a real motor rather than working
>on theory!
>
>Cheers,
>
>- Tom
>
>-----Original Message-----
>From: [EMAIL PROTECTED]
>[mailto:[EMAIL PROTECTED]]On Behalf Of Tim Albany
>Sent: Thursday, 13 April 2000 12:12 AM
>To: [EMAIL PROTECTED]
>Subject: RE: [LZ24, Tom Richardson - David Thompson]
>
>
>sorry to butt in I was just ready your email about your LZ24 motor,in
>my datto I have a modified z24 block (how modified i forget,going
>back two years) and is attached to a highly modifed 20b head.The
>speedo just clicked over 11,000 miles and it was brought s/h of a
>friend
>which used to be in a off road competition buggy and I just fitted
>straight up to my datsun. When I fist brought it i rigged up twin
>su's off a 4.2 liter jag but I couldn't afford the fuel bills so
>about a year or so ago I got set up with fuel injection and the
>computers cut off is at 6,500 rpm and I generally spin it up to 6,000
>rpm in 1st 2nd 3rd, and once in forth 120mph (so i don't do it much)
>and it spins up really easy and loves it around 4000, 4500 rpm. the
>only problems have been 1 cooked h/d 8"'clutch and pressure plate and
>flywheel, and a now very tired 3:5 diff. It was dynoed but the shop
>said there machine didn't do charts but said the rear wheel horse was
>around 130- 140hp> my efi system is off a 180b jap import motor
>fitted up with vg30 throttle body and a (link) management system.
>
>
>
>>David,
>>
>>Thanks for the update. I've been considering building a Z22 based motor
>but
>>I'm concerned that I'll lose the top end due to the reduced rod/stroke and
>>bore/stroke ratios. I like torquey motors as much as the next guy but my
>>motor needs to have strength above 5000rpm. If you get any dyno charts
>made
>>up I'd be most interested to see the power and torque curves when a free
>>flowing induction system is used (as I'm sure everybody else would be
>too!).
>>What type of EFI system are you going to be running it with?
>>
>>Cheers
>>
>>- Tom
>>
>>-----Original Message-----
>>From: [EMAIL PROTECTED]
>>[mailto:[EMAIL PROTECTED]]On Behalf Of David Thompson
>>Sent: Friday, 13 April 2001 12:53 AM
>>To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
>>Subject: Re: [LZ24, Tom Richardson - David Thompson]
>>
>>
>>Tom,
>>the LZ24 is going well. It's done 700 miles now - almost run in. Although I
>>have a custom EFI to fit, I wanted to run it in using a carb, so that it
>did
>>not get over-revved at the dyno shop. I understand that it wont rev out as
>>fast as a standard stroke engine, but the torque should compensate.
>>I used a z24 crank and 89mm pistons (re-sleived)with l20 rods. The l20 rods
>>have been modified to suit full floating pistons, and so a bearing has been
> >inserted at the small end of the rod. When this was done, the bearing was
>>inserted lower than standard height, efectivley decreasing the rod length
>by
>>a
>>couple of mm. Also, pergeot v6 pistons were sourced and the dome machined
>>off
>>the top to produce a 10.4 cr with a 2mm copper head gasket and re-shaped
>>combustion chambers. To compensate for the inability to rev out as fast as
>>usual, I lightened the flywheel and used the full floating pstons.
>>Since I'm using a bluebird carb on an old 180b manifold, (very small port
>>diameter relative to the head) the engine struggles to get enough fuel to
>>breath properly. That said, the engine is very strong, and has already
>>broken
>>2 diffs!
>>Regards,
>>David Thompson.
>>
>>"Tom Richardson" <[EMAIL PROTECTED]> wrote:
>>David,
>>
>>If you're still about, hows the LZ24 going? I'm keen to find out how it
>>goes and how much it revs out!
>>
>>Cheers
>>
>>- Tom
>>
>>
>>
>>____________________________________________________________________
>>Get free email and a permanent address at http://www.netaddress.com/?N=1
>>
>>
>
>
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