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UTV Member Project Logs / Re: AR-51 build
« Last post by Carlriddle on Yesterday at 09:16:29 AM »
The zx12 while I love it, can be a bitch.  Odd ball output sprocket spline, crank trigger is odd number signal.  I worked around it all, had computer stuff reprogrammed, dug up parts, made others.  The 12 revs snappy like a 1000 but w more torque.
 
If I was doing another, Kawasaki H2, or H2R if ya can find.  Factory supercharged sportbike. 
The busa is the king of aftermarket support, makes upgrades easier and cheaper.
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UTV Member Project Logs / Re: AR-51 build
« Last post by deranged on Yesterday at 09:00:12 AM »
Fabr,
GREAT INFO, and thanks for that chart!  I will be draining my system today and will fill er up with some distilled water and antifreeze.  Ya can't argue with what you have stated at all. 

And for the engines, I agree too with the engines.  I like to have the availability of parts, pieces and whatever may be needed at any given time for an common engine. 

Justin
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UTV Member Project Logs / Re: AR-51 build
« Last post by fabr on Yesterday at 08:10:14 AM »
Well,
It's been a busy year so far and haven't been on here in a while!!  Well I have done a couple things to the car as of lately.
I went from a 10" ebay fan to a 12" Spal curved blade fan, drained my coolant and used some Royal Purple "water wetter" type stuff.  What I used before was distilled water and water-wetter.  I used distilled water per Suzuki.  However that is mixed with antifreeze.  Well I guess distilled water will actually draw minerals out of the cooling jacket and reduce the cooling efficiency? Well, I now have purified drinking water and that Royal Purple additive.  All things combined, I can run it really REALLY hard in the dunes and it will get up to 210 with a 95* ambient air temp.  I don't push it past that, as I will stop for literally 30 seconds to a min. and it will drop to 190 and stay there under "normal" driving around on the dunes.  Possibly may go to a 4 row Civic rad vs the 2 row I currently have.

I also made some adapters for my bead-lock wheels!  It looks KILLER!  so from going from 8" wide wheels to a 10" wide wheel and 13" wide paddles there is more of a contact patch on the sand.  It really hooks up good now! 

I made some spring adjustments too.  Originally had 300# on the bottom and 250# on the top...WAY over-sprung.  I had 2" of shaft in the body..(LMAO)  I was hoping for 4-5" of shaft in the body..(LMFAO, married mans dream).  I did the math over and over and my simple mind said if you need to drop another 2" cut the poundage in half.  Well, my numbers matched up to the calculations that Downsouth Motorsports came up with.  I should be getting the new coils today.  150 on the bottom with 100 on the top.  This will allow me some pre-load if I needed.  Then I will have to test and possibly some valving.

This car is just too much damn fun!  Not sure if I want to start another build, or do a Busa swap with this car.  Looking at dyno numbers of the 750, bikes are seeing 55# ft of torque at 12k...the first gen busa has that at 2500 rpm...  And this car will pull the front wheels juuuust ever so slightly over a roller at 10-13k RPM.   


I'm sorry but I gotta call BS on that. The simple truth is that there is no better coolant than 100% distilled water. Is there a problem with running pure distilled? Yup,no corrosion inhibitors. That is why it needs at least some antifreeze in it. Water wetter products ,IMO,are just marketing hype and will absolutely not cool any better than water/antifreeze that also provides ample corrosion protection. If a person is having controlling temps it is simply a matter of either too small a radiator or much more likely too little airflow through the radiator due to either radiator placement of crappy,low cfm fan/s. You shouldn't need or really want a 4 row since the extra restriction will basically stop the airflow through the core. This has been hashed over on many,many forums and in written literature for a very long time now. There is a reason why universally 50/50 distilled and antifreeze is recommended in an engine. On a side note 210 is absolutely not an issue. Hell even at230-240 which is perfectly fine for an engine to run at water will not boil if the cooling system is able to hold enough pressure. Here is a chart to show this. SOOOOO,forget the fancy stuff and get you cooling system airflow and system pressure up to par. 

Here is a chart showing the effect of pressure on boiling point . It's just physics. Honestly,don't worry yourself about keeping the water temp to any certain number like 210 or below. Just run enough system pressure to prevent boiling. Easy peasy. The YXZ's I have all run 220-240 all the time as yamaha designed them to do . I know how hard it is to get comfortable with the higher coolant temps but most all new stuff run hotter by design today. I run approx 33% antifreeze in the busa buggy and the same in the v8 with 20 psi caps. No issues at all.
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UTV Member Project Logs / Re: AR-51 build
« Last post by fabr on Yesterday at 07:26:04 AM »
Deranged,you have built one fine buggy. It is on par with the best of the best. You can/should be deservedly very proud of your creation. I'll differ from ds on engine though. I'm a busa guy since the sky is the limit of their performance and after market performance parts. Nothing wrong with the zx12 though. Any of the super bikes make loads of hp .
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"AP" General Discusion / Re: car derived sxs
« Last post by Baloo on Yesterday at 07:03:55 AM »
onto the work bench and I can see where the suspension tops need to be
just need to copy over the engine mounting position in the same way  and I can get rid of the old body shell I keep tripping over

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"AP" General Discusion / Re: car derived sxs
« Last post by Baloo on Yesterday at 06:57:35 AM »
that gives me the position for the wishbone pick up points but not the strut tops
so

weld a couple of discs in the suspension tops to give me a 12mm hole like thus



and use these to capture the position for the strut top



wheelbase is set at 2100mm which is the shortest I could fit into with legs out straight



base layer will have to be 2" box section for now but I am treating this as a prototype and will make another after ironing out all my mistakes lol

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"AP" General Discusion / Re: car derived sxs
« Last post by Baloo on Yesterday at 06:52:08 AM »
so I finished stripping the golf down as far as I could, decided for the time being I would use the golf front subframe in the back and another up front


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The Pit Stop / Re: well hell
« Last post by Yummi on Yesterday at 06:24:03 AM »
HOLD it , bs1 bs1 bs1 thems are friendship ruining  bs1 bs1 bs1 allegations.  :slp :slp :slp :m :m :m

Nice try ,yummi. You know that they and I have absolutely nothing in common. They want to Force you to pay just a little more all the time,year after year. What I advocate is VOLUNTARILY paying a bit more in voluntary support of your community with the gouging exception I think we both agree upon.

Heck, you busted out the red text.  I must be in trouble now? 

OK, so voluntary, sure.  I can agree with that.  But, if somebody decides not to "buy local" it is just that.  Their decision. 

For me it is a crap argument designed to appeal to some sense of civic duty where none exists or is required.  Local business has to earn the business just as an online or out of town vendor has to.  The argument quickly falls apart when the rubber meets the road, or the led strip lights meet the opportunistic. 



Look, I did not even bust out blue text, and yet I still "won" the internet with my superior key board skills.  Go go me!



We all get ribbons! 

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"AP" General Discusion / Re: car derived sxs
« Last post by Yummi on Yesterday at 06:09:19 AM »
I just asked re: Chassis.  Hope they respond.

And they did.  Not a lot of detail, but some insight. 

Quote
Good Morning Jeffrey,

We use bronze welding because it has very slight flex in it as you say. It also induces less localised heat in the tubes, increasing strength.

Regards
 
Henry
 
Henry Siebert-Saunders
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UTV Member Project Logs / Re: AR-51 build
« Last post by deranged on Yesterday at 05:33:59 AM »
Great points! 
I did some looking for engines yesterday and they are pretty few and far between.  The dyno numbers look really nice too.  Granted those numbers are kinda subjective as they aren't in a sand car but at least they are fairly consistent numbers to look at for reference as the motors are all in bikes for the dyno runs.

Justin

Side note, coils will be going in today.
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