AirSpeed VW Community Forums
Technical => Engine Tech Forum => Topic started by: captaincanuck on July 16, 2010, 06:18:35 PM
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Hey all
From the airriders club in edmonton, but was directed here becasue apparently a lot of dvkk members run big power -
I am replacing the motor in my '66 t3, and my two options are a relatively stock 1600 or a paradise built 2332.
I have heard of issues with the 2332 so far as excess heat, short lifespans, not being very good for extended cruises and such.
Just looking to get some opinions from people who are or have run big power, how did you find the lifespan of the motor, did you have serious issues with heat
or reliability?
Any opinions would be great......
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Not a club member but i run a mild 2165cc.
I reseached this a while ago. You have to decide what longevity means for you i.e....60K or 90K kilometers?
Every one told me that once you go big, you will wish you went bigger. They were right.
Bigger motor will lead to a need for a better trany. Because you will push it.
More horse power require better braking. Stopping is a good thing and a bit harder when you go fast.
A deep sum will be recomended.
6K rpms create alot of heat and that takes away from longevity.
http://www.airspeedparts.com/forums/index.php?topic=7728.msg55229#msg55229
my two cents
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Horsepower, reliability, cheap . . . pick two.
A T3 is already a heavier car than a Beetle. Like Emilio says, wanna make some horsepower? Better build a good transmission too.
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Every one told me that once you go big, you will wish you went bigger. They were right.
Not always. I have no desire to make my engine more powerful. If I did, it might not be as reliable. Right now, I have absolute reliability.
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I have heard of issues with the 2332 so far as excess heat, short lifespans, ......
Like Emilo said, you have to ask yourself how long you want the engine to last. When I built my engine, my intent was to not touch it for at least 100k miles. That was 8 years ago, now at 70k miles.
I picked 78x90.5 for a couple of reasons.
90.5 because I have heard of many instances of achieving 100k miles on these P&Cs. I have never heard of anyone building a 94 bore engine, then running it that long without a re-ring along the way. Lots of blowby is common at 30-50k miles.
78 stroke because with 82-84 strokes, you start to get more side loading due to the greater rod angle. Side loading on the piston contributes to cylinder wear and ring failure. With a 78 stroke, you reduce that problem. If you use a longer rod, you can get the same rod angle as I have, but with the longer stroke.
I use 40x35 valves. I prefer them for many reasons. One is that with proper porting, it is possible to make 160-170+ hp. Since my target hp is less than that, why use a bigger valve? Bigger valves need stiffer springs. Stiff springs lead to shorter cam/lifter life.
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Being a type 3 you also need to consider what your going to use for carbs(or F I ) and exhaust. Not as many choices for type 3. Do you plan to have heat? These things will limit your engine plans.
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I'd love to see a 2332 in a T3! Define reliable though. A 2332 won't last as many miles because of the way you'll drive a 2332. With my 1600 T3 I've grown quite content to sit on the highways doin' 65 and just let people pass. If I had something bigger, I might be the one doing the passing, just 'cause I could.
Are those your only two choices? 1600 or 2332? How about the 1955 that defies the "reliable/fast/cheap, pick two" rule. You get a good balance of all three!