| Justin Qutami |
Sat Mar 20, 2010 10:34 pm |
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| Ive got a 67 1500sp bug and I was just wondering what i would need to make the change to a 1776cc engine. Do i just need new pistons, and cylinder heads??? What else do I need?? Depending on a couple other factors I might also get dual carbs. So how much would this whole thing cost, what is my hp increase, and what mpgs am I looking at??? Thanks guys!! |
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| wbrown45 |
Sat Mar 20, 2010 10:55 pm |
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| If you are hoping to get mega hp out of a 1776 you will have to do a lot more to it than just the heads and p&l's. This motor is very flexible in the different degrees of power you can attain. I had a 1776 with stock heads and a Scat C25 cam that served me well for over ten years. It put out approximately 75 HP and lots of torque. When I rebuilt it and put on 40 x 35.5 heads and dual Dellorto 40's it had a lot more top end power, but less down below 4,000 RPM's. It is the old adage, "you pays your money and takes your choice!" I would suggest building the lower end with at least a counter weighted crank, good set of rods, and a good torque cam. The rest you can bolt on later with out too much trouble. Above all, have fun! |
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| pantone149 |
Mon Mar 22, 2010 12:36 pm |
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I'd think the cost/benefit ratio would not favor the change. To go from 1500sp to 1776dp would mean different cylinders, pistons, heads, intakes, and cooling parts. You might want to limit the expenses and simply go from 1500sp to 1776sp. That way you keep your existing cooling stuff and intake stuff.
If you really want to go 1776dp it may be best to start with another motor. |
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| mtb7001 |
Mon Mar 22, 2010 3:23 pm |
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| depends on your budget and skills. to go to a 1776 the motor would require a complete breakdown so the case can be machined and the heads machined, of course as long as the motor is apart you are going to rebuild it and replace bearings/seals/gaskets as well as any machining the crank/cam/etc rebuild requires. < Just the machining could run you several hundred dollars. And if you have minimal mechanic skills add a few hundred more. So far you are into it $$$ and you haven't bought any real parts yet. I would suggest starting a build sheet on a rebuilt stock motor and another build sheet on a mildy hopped up motor. The stock rebuild is easy, just install 87mm slip-in P+C's and a mild cam, a good vavle job and some skilled hands you are good to go. A mild 1776 on the other hand in my eyes you are building a motor that you will want to keep running for a long time with good power and reliability so that means better parts... machining case and heads $$, counterweighted crank $$, good DP heads $$, dual carbs $$, even a high quality exhaust is $$.... but the biggest part is, How much work can you do yourself? the stock rebuild if you did your own work (other than a good valve job) would only run you a $200-300. If you took your car to a shop it could run you several thousand to drive out with a 1776. |
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| desert_baja_rat |
Mon Mar 22, 2010 9:18 pm |
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| not to hijack the thread, but i have a 1600sp and im gathering all the parts to build it up to a 1776dp. as i already got the heads for it but i found a used dp intake and where the carb bolts onto the manifold there is an extra spot for something else to go on about where the float bowl is, im new to vw's so im learning as i go, if anyone knows if there is a way to block it off or if i need to find a different one, im going to try and get a picture uploaded thx |
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