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Browsing this Thread:   1 Anonymous Users





dattodude
Re: Enquiry on CA18DE
#11
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I don't think there's a lot of space for much in the way of boring out the cylinders.

I've got 20 thou over forged pistons in my DET. Since the rebuild not even one spark plug has been fired in it....but I know you can get that much at least. For high HP Turbo engines, it's best to keep the bores nice and thick. But for DE engines..Could be a thought.

Posted on: 2004/3/14 10:52
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MUDFLAP
Re: Enquiry on CA18DE
#12
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FERAL,

IN REGARDS TO YOUR ENQUIRY AS TO MY IRS SET UP I WENT THROUGHT EXTENSIVE CHASIS AND REAR STRUT TOWER MODIFICATION TO INSERT THE SHORTENED 200SX DIFF,IT TOOK ALMOST SIX MONTHS MY CLOSE FRIEND AND ENGINEER PABLO ZUBLADO CARRIED OUT THE ENGINEERING SIDE OF THINGS.AT THIS POINT I DONT HAVE PICTURES AS TO THE REST OF THE CAR IS NOT COMPLETED.
I WILL POST THEM AS SOON AS POSSIBLE.

THANKS FOR YOUR INTEREST.

MR FERAL

Posted on: 2004/3/15 1:45
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MUDFLAP
Re: Enquiry on CA18DE
#13
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.

Posted on: 2004/3/15 5:05
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feral
Re: Enquiry on CA18DE
#14
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Mudflap, Sounds good to me, whatever rings your bells. Do you think there is any handling advantage from fitting IRS to your 1200? I would think the weight increase would offset any traction advantages from the IRS.

I could understand it for the engineering WOW factor to show it can be done.

Posted on: 2004/3/15 11:00
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MUDFLAP
Re: Enquiry on CA18DE
#15
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Mr Feral...

Do I think there is any handling Advantage, No I dont think, its proven,With a front weighted vehile the extra weight works well with balancing the vehile for a more symmetrically balanced affect.once shiftting the weight from side to side on the circuit the handling advantage out weighs the extra kg.weight distribution is more balance producing a more neutral handling affect.

As for my details you Dont Know who I am but I am sure i have passed most of you guys on a curcuit some where.

was your car for sale at the swap meet for two slabs of VB.

May the force be with your Datsun.......



Quote:

feral wrote:
Mudflap, Sounds good to me, whatever rings your bells. Do you think there is any handling advantage from fitting IRS to your 1200? I would think the weight increase would offset any traction advantages from the IRS.

I could understand it for the engineering WOW factor to show it can be done.

Posted on: 2004/3/16 4:44
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teretonga
Re: Enquiry on CA18DE
#16
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Great another 1200 racer!! What competition have you been running and was it in the IRS Ca18DE 1200 or something else? Any pics or lap times of your beast in action? I'm guessing that you have raced in NSW IPRA seeing as your car is undergoing work in Sydney. If so I'll definitely know your car.

Posted on: 2004/3/16 8:42
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feral
Re: Enquiry on CA18DE
#17
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Quote:
Do I think there is any handling Advantage, No I dont think, its proven,With a front weighted vehile the extra weight works well with balancing the vehile for a more symmetrically balanced affect.once shiftting the weight from side to side on the circuit the handling advantage out weighs the extra kg.weight distribution is more balance producing a more neutral handling affect.

Mudflap,
I assume you mean a front engined vehicle when you say front weighted.

By adding weight to the rear with the IRS it makes the car more balanced. But does it make it handle any better than a well set up live axle, I doubt it???? What about the polar moment of inertia????

Quote:
As for my details you Dont Know who I am but I am sure i have passed most of you guys on a curcuit some where.

Maybe you can teach us all a bit and help us all improve our skills. What times do you do on what circuits?

Quote:
was your car for sale at the swap meet for two slabs of VB.

What swap meet and what car are you reffering to?


Posted on: 2004/3/16 9:51
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datsik
Re: Enquiry on CA18DE
#18
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ye, what about the polar moment of inertia???

All things have pros and cons. The advantage of a higher polar moment .... is that, when one begins to loose the rear end, the slide will take longer to develop thus increase the reaction time available. off course, it will take longer to correct the slide. and unless one has very twisty circuits, the extra PMoI may harm the car handling less than say the added weight.

Does it weight more????

As for weight distribution, isn't the 1200 close to being 50/50 standard?? The extra rear weight may upset the balance.

Also note that many race teams, for many years prefered a solod axle. Take for instance the turbo bluebird, it had a IRS and the team could not come to terms with it. In many instances it is easier
to develop a component well, if it has fewer variables.

Posted on: 2004/3/16 12:37
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ddgonzal
Re: Enquiry on CA18DE
#19
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Quote:
isn't the 1200 close to being 50/50 standard?
No way. It is a very average 54/46.

Posted on: 2004/3/16 18:01
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feral
Re: Enquiry on CA18DE
#20
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As mass is increased at either end of the vehicle it makes it harder to change direction.
This is what makes long vehicles harder to change direction and the 1200 such a legend on track and dirt.

Posted on: 2004/3/16 22:01
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