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Posted by: ne14914 Mar 17 2003, 11:43 PM

How large can you build a 2.0 motor and still use it as a reliable daily driver?

Posted by: Brad Roberts Mar 17 2003, 11:59 PM

I'm really starting to like the idea of the 78/98 engine combo. This doesnt have to be built on a 2.0.

For the budget minded...I would build a 2056 which is a stock 2.0 crank/rods and 96mm P+C's.

Try and stay away from the 103mm P+C's.


B

Posted by: Dave Cawdrey Mar 18 2003, 12:11 AM

I'm going with 78/94... We'll see how it works. Trying to keep it simple, for the kids' sake (the cars are theirs any-who)

Posted by: Brad Roberts Mar 18 2003, 12:24 AM

Dave,

what does that work out to be CC wise ?? Somehow I managed to build this computer and not install a calculator.

B

Posted by: Dave Cawdrey Mar 18 2003, 12:28 AM

Dont know off hand... Cant remember the formula

Bore x Stroke / ??? Is this formula correct? LMK I got my calculator waiting

Posted by: Dave Cawdrey Mar 18 2003, 01:11 AM

All this talk 'bout IQ's, but no formula? C'mon, whats the formula for calculating cc's?

Posted by: Brad Roberts Mar 18 2003, 01:19 AM

Sorry. I was reading CNN.

BoreXBoreXstrokeX3.14X4

It comes out too: 2166

My combo is a: 2354


B

Posted by: Dave Cawdrey Mar 18 2003, 01:23 AM

I was thinkin 2175 (close) Thanks B-

Bore x Bore ?? Huh?

Posted by: Mark Henry Mar 18 2003, 07:19 AM

How to calculate engine cc's

Bore (mm) X bore (mm) X stroke (mm) X 0.0031416= engine cc

Example:

94mm X 94mm X 78mm X 0.0031416 = 2165.cc

NOTE:

0.0031416 is used for 4 cylinder engines
0.0047124 is used for 6 cylinder engines
0.0062832 is used for 8 cylinder engines

I have all the engine math if you need it.

Posted by: Mark Henry Mar 18 2003, 07:41 AM

78mm X 96mm is the largest you can you build a 2.0 motor and still use it as a reliable daily driver.

Dave if you are going with a 78mm crank get one with type 1 (beetle) rod journals. Not only are T4 rods heavy but they're very short (rod angle) as well. You can use modified T1 rods or any of the aftermarket T1 longer rods. This will give you greater flexablity on the design of your engine.
You will also have to use a small (22mm) pin piston like the 96mm or some guys have used a 94mm T1 piston on a T4 jugg.
Good luck, Mark

Posted by: ne14914 Mar 18 2003, 02:06 PM

using 78mmx98mm = 2354cc, if I did my math correctly. This would still be a good daily driver? How much more horses would this give me? Should I stick with the D-Jet? Abd if I did - is the F.I. system transferable from my 1.7 - minus the injectors?

craig

Posted by: vortrex Mar 18 2003, 02:09 PM

hmm I don't know but that seems kinda large to be a daily driver that you'd get a decent amount of miles from. also I think there is no way you can use the stock FI with something that beastly?? why don't you just stick with something proven like a carbed 2270cc?

Posted by: Bleyseng Mar 18 2003, 02:24 PM

For a daily driver a 2056cc is the ticket as you can keep the Djet and keep it cool. For larger motors, the 2270cc with carbs is nice or the top of the line would be running the 102mm Nickies with a 78mm crank, carbs etc. That motor would be atleast $6k!
Back to the 2056cc, that can be built for reasonable, gives good hp (95 -115) and lots of low end torque for street driving.
Geoff

Posted by: Dave Cawdrey Mar 18 2003, 04:08 PM