Stock 2.1 WBX : Best way to increase the HP and the torque ?

[maco70]

Thanks Sanchius !

Do I understand that the main items related to the torque improvement are in this section :
Engine Rebuild - Upgrades new to this build
They are seven items for 1251 $ and mainly are the pistons (95.5 mm), the camshaft and the pushrod ?
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Martin from Montréal

1986 Vanagon GL full camper westfalia
(brown/tan interior)

[GoEverywhere]

[Abscate]

Don’t put the Shell sticker too close to the Mobil sticker.....
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.ssS!

[sanchius]

[9.5isCanadian]

Torque and horsepower are a product of displacement.
Beyond that you can improve the efficiency of a given displacement (internal engine components) with the addition of improvements to the intake and exhaust systems (external ancillary support systems to the internal components).

So a stock displacement gives “X” hp with stock intake and exhaust system in place. You can moderately improve the hp output by improving the performance of the external ancillary components).

If you increase the gross displacement of the internal components to “Y” you will increase both hp and torque with the stock intake/exhaust systems in place. You can further increase gross hp/torque further with the addition of improved external ancillary components.

There’s no replacement for displacement. The most cost effective way to improve engine output.

Side note: increasing stroke also increase displacement and thus increases output but primarily torque do to the increased mechanical advantage of your crankshaft throw distance increase.

Owen
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9 1/2 - missing a few pieces.

1987 Getaway Hightop
1980 Sunroof Vanagon
2018 BMW R Nine T
2012 Golf tdi

[danfromsyr]

maybe toss out some weight


Link

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[khughes]

[hdenter]

How is the oil pressure at a hot idle? If it's just barely high enough to keep the buzzer from going off, then you should at least be thinking about replacing the rod bearings if not splitting the case. On the other hand, if your oil pressure is good, and the end play is good, why split it? If it ain't broke, don't fix it. If the oil pressure is good, then do the 2.2 to give you a bump in displacement and compression ratio. Then do some of the other bolt on items as you need. Maybe start with the exhaust and see how that feels. Not enough? Go for the high lift rockers. Manci injectors have a great reputation, too.

Hans
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'79 triple white convertible bug
'84 sunroof vanagon
'85 weekender

[GoEverywhere]

[4Gears4Tires]

[syncro surf]

[hdenter]

My RD400 was a blast! Miss that bike!

Hans
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'79 triple white convertible bug
'84 sunroof vanagon
'85 weekender

[khughes]

[GoEverywhere]

[GoEverywhere]

[9.5isCanadian]

[jberger]

[loki475]

[DuncanS]

More HP. Yes, there are times I wish I had a bit more power, but not often. This topic reminds me of boat owners wishing their boat was 10% bigger. They get one and then wish the new boat were 10% bigger and so on. But bigger boats cost more to store and maintain. The only time most boat owners will tell you they are happy with the size they have is when they have to sand and paint the bottom.

Going to all the work of an engine rebuild sounds to me a lot like sanding and painting the bottom. I had a 7 passenger tintop, actually they are six passenger and one driver cars. But now all the seats except for the driver's are gone as well as 70 pounds of steel out of the roof. With just me aboard and nothing else inside it weighs 3700 pounds and is mostly zippy enough for me.

Duncan

[Steve M.]

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