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Rebuilding 1600 for Summernats
http://ozdat.com.au/forum/viewtopic.php?t=21245		 Page 11 of 11
Author:  Ackley Improved [ Mon May 07, 2012 12:31 pm ]
Post subject:  Re: Rebuilding 1600 for Summernats
Bit of an update with the harmonic balancer. I have a Powerbond already here, but I rang them asking about a single belt balancer. They said they would just machine off the first two pulleys, but in doing so you lose the clip and void warranty.

I was a little reluctant about all this, but then I was told it is a pretty common thing they do. Done it for a few people now with space issues and there has been no problems with doing this. The balancer is rated much higher than the standard balancer, so likelyhood of any problems is very slim.

Now to machine the balancer! More $$$$ saved!

What do you guys think about using the wheel well as a fuel cell location?

CHeers
Author:  SR20Datsun [ Mon May 07, 2012 12:57 pm ]
Post subject:  Re: Rebuilding 1600 for Summernats
Regarding using the spare wheel well as a fuel cell location:
1. Lowers the COG. (GOOD)
2. If you get rear ended, the fuel system is closer to the rear of the car and therefore more susceptible to bursting/spilling fuel (BAD)
3. Increases moment of inertia (meaning the car will be slower to react in corners, less twitchy and possibly easier to control) (GOOD and BAD depending on what you want the car for)
4. Places more stress on the rear of the boot which can lead to cracks appearing in the C pillars (can be fixed by reinforcing the boot as I have done in my build) (BAD)
5. Can increase your weight distribution for the better (closer to the magic 50/50). (GOOD) My car is 52/48 with half a tank of fuel in the factory location
6. You have to relocate your fuel filler hoses, unless you fill straight into the boot (GOOD AND BAD!)
7. Something Different! (GOOD)

Hope some of that helps...
Author:  Ackley Improved [ Mon May 07, 2012 2:35 pm ]
Post subject:  Re: Rebuilding 1600 for Summernats
I was thinking about #4 being the issue.

Is there a ready available fuel cell/tank that goes well into the existing tank postion? Obviously doesnt have to bolt onto the original location, but just fits in the area... and doesnt hold only 15 litres. Running a surge tank I dont really have to worry about having the tank baffled either right?

Next question, if I run a baffled or foam filled tank do I even need a surge tank? Car isnt going to see serious race track time, maybe a small play occasssionally, Powercruises, and a couple runs down the drag strip... ok.. answered my own questions... surge tank...

Fuel line sizes? 300rwkw SR20, E85 and 1000cc injectors..... In think I have discovered I know bgger all about fuel systems.... time to learn!

Cheers
Author:  dtsmad [ Mon May 07, 2012 7:02 pm ]
Post subject:  Re: Rebuilding 1600 for Summernats
I run a foam filled cell with a surge tank, fuel lines are -10 to the motor and -8 return
Author:  macdatty [ Thu Aug 16, 2012 3:05 pm ]
Post subject:  Re: Rebuilding 1600 for Summernats
Hey Trev,
Any updates on this beast?
Author:  Ackley Improved [ Sun Aug 19, 2012 8:40 pm ]
Post subject:  Re: Rebuilding 1600 for Summernats
No update just yet... having mates do work means very very slow... hopefully this week get some parts back and then full steam ahead. I decided on -6 fuel lines throughou the car, got to decide on what I am doing with the fuel tank!

Cheers
Author:  FIVETEN [ Mon Aug 20, 2012 12:37 pm ]
Post subject:  Re: Rebuilding 1600 for Summernats
-6 to samll for feeding that much power -8 feed -6 return...-10 if you want to run e85
Author:  Ackley Improved [ Tue Aug 28, 2012 3:36 pm ]
Post subject:  Re: Rebuilding 1600 for Summernats
Thanks Man.. good that I didnt buy the fuel line yet.

Made my fuel tank today... well out of cardboard to see if the design is ok and it will fit alright! Will hold about 45-46 litres and fit in nicely. I need to decide now about the surge tank, but looking at sitting it on top of the tank. Then mounting pumps..... I have been thinking though... with a baffled tank and maybe a sump at the bottom of the tank with the pickups, do I need a surge tank?

[ img ]

[ img ]

[ img ]

What are the issues with having the fuel pressure regulator in the boot with the tank and not close to the fuel rail? Would make things neater without it under the bonnet!

Cheers
Author:  jrogersmotorsport [ Thu Aug 30, 2012 11:31 pm ]
Post subject:  Re: Rebuilding 1600 for Summernats
I've attached a couple of photo's that may help you with your build.

One of the photo's shows the craddle that the tank sits in. It's bolted at 4 points to the body and has 2 straps that bolt the tank into place.
You may want to consider a small baffled sump on the bottom of the tank aswell as larger baffles in the tank to stop the fuel washing around.
Don't forget to get the tank pressure tested for leaks?

You may have considered all the points alredy but I thought the photo's may help.

Good luck,


Rob

Attachments:
[ attachment ]
Fuel tank bracket.JPG [ 82.11 KiB | Viewed 6941 times ]
[ attachment ]
Fuel tank.JPG [ 118.66 KiB | Viewed 6941 times ]
Author:  Ackley Improved [ Wed Sep 19, 2012 10:17 pm ]
Post subject:  Re: Rebuilding 1600 for Summernats
Bit of an update.. fuel system is sorted, and for a great price I think. Once I get it in will put some pictures up! I have decided to make the fuel system a pretty thing to look at in the boot! Was going to hide the lot.

Last, does anyone have a SR20 with all the sh*t still hanging of the side of it? Not inlet or exhaust manifolds or turbo etc.... just all that crap like carbon canister crap. All I have is a long motor and need this stuff!

Cheers
Author:  Ackley Improved [ Wed Feb 13, 2013 3:46 pm ]
Post subject:  Re: Rebuilding 1600 for Summernats
[ img ]

How the fuel system is coming along. Got some motivation back and will have a good dip over the next few weeks!! Should look pretty good once all the pumps mounted and the braided hose in!!

Cheers
Author:  SR20Datsun [ Wed Feb 13, 2013 5:32 pm ]
Post subject:  Re: Rebuilding 1600 for Summernats
Small word of advice if you haven't thought of it already, but you will need to reinforce the large aluminium plate that you are mounting the surge tank/ lift pump, and main pump, as they vibrate, and the car vibration will make it drum/ring.
It's only a small thing because you can reinforce underneath after you have mounted everything, and it wont affect how cool it looks at the moment.
Nice work by the way :D
Author:  Anth510 [ Thu Feb 14, 2013 9:39 am ]
Post subject:  Re: Rebuilding 1600 for Summernats
Should run it through a bead roller a few times, would look neat.
Author:  SR20Datsun [ Wed Oct 13, 2021 3:28 pm ]
Post subject:  Re: Rebuilding 1600 for Summernats
Any updates on this thing?
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