OZDAT
http://www.ozdat.com.au/forum/

Hatchmans 1600 Build
http://www.ozdat.com.au/forum/viewtopic.php?t=30611
Page 13 of 15

Author:  Hatchman [ Thu Aug 10, 2017 3:00 pm ]
Post subject:  Re: Hatchmans 1600 Build

Nah not always, especially on old cars. When the car was made in Japan in 1970 a specific number P510442xx (i forget the rest) is stamped into the sheet metal that forms the top of the suspension tower on the passenger side.

When it arrives in Australia it gets a stamped metal plate with a new number (in our case a 5 digit number) that is screwed into the firewall.

The problem is the VASS Engineer took the number from the plate, the mechanic (rightly) took the number from the sheet metal. They should always use the stamped sheet metal number to prevent dodgy pricks unscrewing the plate and putting it on another car. But given standards were so lax back then so many cars will have plates that they didn't get when sold in Australia

Author:  Hatchman [ Tue Aug 15, 2017 9:15 pm ]
Post subject:  Re: Hatchmans 1600 Build

Anyway all sorted car is registered now with an M plate and I recently found out that RACV is half (yes half!!!!), the cost of Shannons to insure the car with the same benefits.

Author:  Hatchman [ Sun Sep 03, 2017 9:10 pm ]
Post subject:  Re: Hatchmans 1600 Build

Attachment:
[ attachment ]
Capture.PNG [ 1.59 MiB | Viewed 5466 times ]
New springs in the back and she is sitting much nicer now.

Took her for a bit of a drive today and this car is simply hilarious. It's loud, un-civilised and turns heads everywhere it goes and I can't get the smile off my face driving it.

The big cam in it means you need a very generous right foot to feed huge amounts of air into the Webers to get it up and going, on a light throttle it gets lumpy and struggles but give it a bootfull and it tears off down the road. Fuel consumption is basically farked and you wouldn't want to drive it interstate! Steering is sensitive too, front may be a little too stiff as it wants to chase every rut and line in the road but it's very light once you get going. Simply put there is nothing sophisticated about it, this little beast needs to be driven and I just love it for it. Visceral sums it up

And we now have about 5 more things to fix up now it's had a few shakedown runs too!

Author:  hailest [ Tue Sep 05, 2017 9:12 pm ]
Post subject:  Re: Hatchmans 1600 Build

Well done mate. Looking fantastic.

Author:  sik 510 [ Wed Sep 06, 2017 11:34 am ]
Post subject:  Re: Hatchmans 1600 Build

Looks great.
Let me know if you head out I'd love to see it, be a good excuse to drag out the tennis ball.

Author:  Hatchman [ Wed Sep 06, 2017 3:20 pm ]
Post subject:  Re: Hatchmans 1600 Build

Will definitely be at Classic Japan in December, that is a goal we set when we started out and I've had it blocked out on the Calendar at home for months

Melbourne Datsun Day is a maybe, I'll be O/S for work but my Dad may take it there.

I do want to do a chrome bumpers at the Peninsula Link BP out the back of Baxter at one point as well, depends on weather obviously but if/when I do I'll post ahead of time.

Author:  sik 510 [ Fri Sep 08, 2017 10:15 am ]
Post subject:  Re: Hatchmans 1600 Build

I get to pen link at least twice a month(only 1km from home) and don't forget Mornington at bunnings first Tuesday of the month.

Author:  Hatchman [ Fri Sep 08, 2017 2:35 pm ]
Post subject:  Re: Hatchmans 1600 Build

Ah cool didn't know about Bunnings in Mornington! Is there a Facebook group for that?

Author:  sik 510 [ Fri Sep 08, 2017 9:06 pm ]
Post subject:  Re: Hatchmans 1600 Build

http://www.letsgocruisin.com.au/
Here is the website. I haven't been for a year or so but have always welcoming to any pre 79 chrome bumper car.

Author:  Hatchman [ Fri Sep 22, 2017 11:01 am ]
Post subject:  Re: Hatchmans 1600 Build

Bit of an update.

First up is a bit of dyno tuning. We had really poor throttle response below 3000RPM so we took it to get properly dyno-tuned to get some more bottom end. Turned out that when we fitted the airbox we didn't do it quite right so the airflow was restricted, which you can see in the bottom graph. Nothing at all was happening below that making it a bit of a pig to drive in 1st and 2nd gear.

Talking with Phil at BOI after fixing the airbox issue we said we really wanted more torque earlier in the rev range, this came at a cost of about 10HP total power and a bit less maximum torque in the end at 6000RPM but as you can see in the top diagram the torque curve is a lot flatter, comes on earlier and now she is much more civilised in the lower gears and much more driveable

[ img ]

Other issues now are a leaking (or leak around) the fuel pump, my guess is that the problem exists with the fuel hose connection from the filter to the pump (on the right of the pic) so I am going to see if I can get some new hose, clamps and a connector to see if that can fix it

[ img ]

Author:  Hatchman [ Sat Sep 23, 2017 11:55 am ]
Post subject:  Re: Hatchmans 1600 Build

Also we need a bigger catch can, intake nozzles are too small, going to hunt one of them down now

Author:  SR20Datsun [ Mon Sep 25, 2017 10:13 am ]
Post subject:  Re: Hatchmans 1600 Build

Hatchman,
I would also use some Loctite or other brand sealer around the brass taper fitting thread. I know they are meant to seal, but the bloody things do leak/weep.

Good to see the tune went well! The bits and pieces you have left are the enjoyable ones. Small things here and there aren't too bad.

Author:  Hatchman [ Mon Sep 25, 2017 1:44 pm ]
Post subject:  Re: Hatchmans 1600 Build

SR20Datsun wrote:
Hatchman,
I would also use some Loctite or other brand sealer around the brass taper fitting thread. I know they are meant to seal, but the bloody things do leak/weep.

Good to see the tune went well! The bits and pieces you have left are the enjoyable ones. Small things here and there aren't too bad.
Thanks mate will give that a go with the sealer and see. Tune was expensive but so worth it, drives so much better now

The fuel pump is still fricken loud, it then occurred to us that the outlet from the pump is straight into a metal fuel line which is obviously going to be bloody loud given the line is attached to the body! So we're going to put a rubber section immediately from the outlet to the fuel line to take care of that.

Yeah the small things aren't too bad, they're kind of fun given the big stuff is over now, although if I look at her I can see 100 things I want to fix! The oil catch can was two hours on eBay though, mostly around the damn AN/inches fitting types, bloody imperial systems, why can't the world be metric!

Author:  Nad015 [ Sat Sep 30, 2017 8:05 am ]
Post subject:  Re: Hatchmans 1600 Build

Haha, or why don't you just ditch the noisy smelly electric pump, and put a mechanical pump on it. No hassles, no noises, no smell. Winning

Author:  Hatchman [ Sat Sep 30, 2017 8:53 am ]
Post subject:  Re: Hatchmans 1600 Build

Nad015 wrote:
Haha, or why don't you just ditch the noisy smelly electric pump, and put a mechanical pump on it. No hassles, no noises, no smell. Winning
I've probably been guilty of that thought a few times! :D

The car came with it fitted however and I'm not sure if the standard pump could feed the Webers to the volume of fuel required either, I've heard they can from other people before but I didn't want to find out the hard way with the new engine. One advantage of the electric pump combined with a regulator is that you always get the fuel pressure you need.

Also I do like the look of the L Series engine with things like fuel, water, fan etc... blanked off

Page 13 of 15 All times are UTC+11:00
Powered by phpBB® Forum Software © phpBB Limited
https://www.phpbb.com/