Dune Buggy 1800cc

mikeyt1689 · Post by **mikeyt1689** » Thu Oct 24, 2013 7:38 pm

As stated above i am starting (few weeks now) to make up a buggy.. built the boy a go-kart bout this time last year and now decided that even though i can squeeze into it i want something faster and better. I've got a SR18(DE) motor going into the back of it (Nissan Pulsar motor) and gotten a mostly complete C class buggy frame so just need to mount the motor and sort out the suspension etc... Still in the planning stages so any advice, do's/don'ts or ideas are welcome.. cheers i'll get some photos up when i can be arsed

Smurf · Post by **Smurf** » Thu Oct 24, 2013 7:49 pm

Don'ts
read this
http://www.offroadexpress.co.nz/Forums/ ... f=1&t=9304

mercutio · Post by **mercutio** » Thu Oct 24, 2013 8:46 pm

Smurf wrote:Don'ts
read this
http://www.offroadexpress.co.nz/Forums/ ... f=1&t=9304

oldyella · Post by **oldyella** » Thu Oct 24, 2013 10:59 pm

Tell you what though, the one idea he did have, although very poorly done, was the road bike shocks.

Reckon you just need to change to some longer travel moto X ones...

Then double up in the front to take the weight of the engine... Just whip up a few shock towers, build an actual four link rear end and three link front.

mikeyt1689 · Post by **mikeyt1689** » Tue Dec 10, 2013 7:38 pm

yeah thanks oldyella the motor is rear mounted and is now in got that all mostly sorted just got to do final alterations so the rear suspension works well.. got some racing shocks off a m8 who does stock cars and they work brilliantly still as i say mucking round with the rear suspension and then will look at doing some wiring once i can find a diagram.. got a few photos to put up but need to compress them down so will hopefully get up by the end of the weekend

Sausager · Post by **Sausager** » Wed Dec 11, 2013 10:28 am

I'd be super keen to see pics of this!

My tip. When you want more power, buy this: http://www.trademe.co.nz/motors/car-par ... 561826.htm

Nissan's Version of a V-tec motor. Way more torque and top end than an SR20DE. I've got one in my station wagon and it's awesome. Same block as the SR18, so will bolt straight up. Couldn't be easier.

mikeyt1689 · Post by **mikeyt1689** » Sat Dec 14, 2013 12:21 pm

a few photos will upload more as progress goes

mikeyt1689 · Post by **mikeyt1689** » Wed Feb 05, 2014 5:26 pm

any1 know any info on do's or dont's of mounting a gas tank over a motor?? any comments are apreciated cheers

slidenyo · Post by **slidenyo** » Fri Feb 07, 2014 1:50 pm

a plastic jaz fuel cell would be the ticket,
they're foam filled to eliminate slosh and aeration.
also dash 10 Teflon fuel line with swagelock fittings will bolt on.
its awefully close to your head so fire and explosion risk must be taken into consideration

mikeyt1689 · Post by **mikeyt1689** » Sun Feb 09, 2014 7:31 am

thanks slide didnt think about aeration hopefully this doesnt cause too many issues as for fire and explosion have thought about this which is why i figured i'd put in in the back so less likely to damage it and no matter where i put it this would be a risk but it shouldn't get damaged where it is.. will try upload some more photos the next day or so

mikeyt1689 · Post by **mikeyt1689** » Mon Feb 10, 2014 5:36 pm

might be a stupid question and i think i know the answer but will ask it anyway. on a brake master cylinder which lines are the front and which are for the back? and is it the same on all? also if it's not the way around i want it does it matter which are hooked into which?? the master cylinder i've got has one line closest to the pedal and two furthest away..

mikeyt1689 · Post by **mikeyt1689** » Sun Feb 23, 2014 6:37 pm

any1 got any advice on wiring?? got the motor(SR18DE) wired back up and tried to start it today. it turns over really well but won't start. ive got everthing hooked up that i think should matter but still wont start. does the catalyst converter need to be hooked up as thats the only thing i haven't got wired up yet.

Mattman · Post by **Mattman** » Sun Feb 23, 2014 7:09 pm

Cat converters don't have wires, O2 sensors do and most motors will start without them hooked up.

Are you getting spark at the plugs and fuel at the injectors?

Matt.

mikeyt1689 · Post by **mikeyt1689** » Mon Feb 24, 2014 3:37 pm

so ive got the motor ready to start before simpliflying the electrics and cant get it going.. got all the earths(im pretty sure) hooked up. the motor will turn over but thats about it... any one have any ideas or ask me a ? if you know something but need more info... its a sr18DE motor cheers

mikeyt1689 · Post by **mikeyt1689** » Mon Feb 24, 2014 3:50 pm

ill check the spark plugs but cant get any fuel out of the tank which i suppose would be the biggest problem will look into that. i know the pump is working but hopefully dont have the lines hooked up the rong way

mikeyt1689 · Post by **mikeyt1689** » Mon Feb 24, 2014 4:44 pm

just had a look and dont have power to the pump so will have to sort that out as i assume this is the biggest problem.. the computer wont be earthed via it being mounted would it?

mikeyt1689 · Post by **mikeyt1689** » Mon May 26, 2014 9:41 pm

so the buggy is finished (other than panel work and getting few of the dash electrics working) decided to take it for a test run and couldnt get a trailer so dumped the clutch up and down the driveway a dozen times... all good it moves the clutch is a bit hard so altered that a bit to no improvement.. then tried again and when i went forward heard a crunch and the motor stalled as the rear driver's side dropped down.. first thoughts was oh shit one of my welds holding motor in failed but no the top rear suspension snapped at the weld on one of the factory parts i used..

so now to redesign and rebuild the rear suspension.. happy days

mikeyt1689 · Post by **mikeyt1689** » Mon May 26, 2014 9:48 pm

any experts or claiming to be on a arm suspension your advice would be apreciated... pros and cons of single or double arms..if i make a single arm heavy duty enough im hoping to get away with the one as mounting the bushes will be easier but do i need to just take the time and put 2 in??

mikeyt1689 · Post by **mikeyt1689** » Mon May 26, 2014 9:48 pm

any experts or claiming to be on a arm suspension your advice would be apreciated... pros and cons of single or double arms..if i make a single arm heavy duty enough im hoping to get away with the one as mounting the bushes will be easier but do i need to just take the time and put 2 in??

mikeyt1689 · Post by **mikeyt1689** » Mon May 26, 2014 9:48 pm

any experts or claiming to be on a arm suspension your advice would be apreciated... pros and cons of single or double arms..if i make a single arm heavy duty enough im hoping to get away with the one as mounting the bushes will be easier but do i need to just take the time and put 2 in??

mikeyt1689 · Post by **mikeyt1689** » Mon May 26, 2014 9:49 pm

mikeyt1689 wrote:any experts or claiming to be on a arm suspension your advice would be apreciated... pros and cons of single or double arms..if i make a single arm heavy duty enough im hoping to get away with the one as mounting the bushes will be easier but do i need to just take the time and put 2 in??

dont know why this went up 3 times

oldyella · Post by **oldyella** » Mon May 26, 2014 10:55 pm

Throw up some photos with what your working with and the specific problem your trying to solve

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