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How Much Power Can a 1600 Dual Port Make? We’re Finding Out!
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Fun With VDubs
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Joined: October 05, 2023
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Location: Northern Illinois
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PostPosted: Sun Jun 15, 2025 3:05 am    Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! Reply with quote

GS guy wrote:
FunwithVDubs, did you guys do anything special with the heads? Good valve job, fluff&buff or mild pocket port? Or are they straight out of the box? 37x32 valve sizes?
Jeff


Straight out of the box.
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BFB
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PostPosted: Sun Jun 15, 2025 10:10 am    Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! Reply with quote

NJ John wrote:
…. The last thing I wanted was a constant boost leak. I just think adjusting the rod length to control boost is not the way to do it. My thought is, it would just adjust how far the gate opens. I have one of those boost control bleed valves for the vacuum/boost hose.


I originally Thought the same thing too but i was wrong, when you shorten the rod length its putting more pressure on the spring inside the wastegate and that raises the boost pressure required to open it. Same as if you have an external waste gate that has an adjustment screw on top of it.
The waste gate can’s throw should be further than what your waste gate’s arms travel should be too, so length shouldnt be an issue.
I can’t stand those boost bleeders , thats got to be the jankiest way of ‘fooling’ your wastgate, also a good way of getting trash inside the wastegate and or line.
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Fun With VDubs
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PostPosted: Sun Jun 15, 2025 2:27 pm    Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! Reply with quote

The 1600 turbo engine finally made its way into a car! We did have a few struggles along the way: There was a little clearance issue with the transaxle, the throttle cable was a nightmare, and we had to do a janky oil filter mount. But it's running and driving!


Link

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Fun With VDubs
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PostPosted: Tue Jun 24, 2025 5:16 am    Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! Reply with quote

This is the end! The end to Series One that is. We'll be back in a couple weeks with the beginning of Series Two! I'm not sure which forum would be most appropriate to post the progression of our new project car. Maybe under 1967 Beetle. We'll see.


Link

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NJ John
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PostPosted: Wed Jun 25, 2025 7:20 am    Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! Reply with quote

Maybe I don’t want to try a Mikuni carb after watching the video. Another fun video. Figure out that carb! Thanks for the samba shout out. Lol
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1973 standard, yellow, lowered, 3” narrowed front, 1600 blo-thru turbo w/single dell 15.4@86, so far
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Root_Werks
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PostPosted: Wed Jun 25, 2025 9:29 am    Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! Reply with quote

Was a really fun series to watch, thank you for putting it together!

-Dan
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oprn
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PostPosted: Wed Jun 25, 2025 2:53 pm    Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! Reply with quote

Just a few rambling thoughts here from one guy in the restaurant:

I came to the table expecting the advertised roast beef and Yorkshire pudding special with the fixings, potatoes, gravy and some veggies. We had the appropriate wine, salad and appetizer. Then the waiter came out and said "Sorry the Chef is tired of cooking roasts, you get stir fry and rice!"

Now don't get me wrong, I like stir fry and rice but that was not what I had my mouth set for... that is not what I came here for... not what was advertised. Yes the restaurant is clean, the staff is super friendly, nice table cloth but...

I too was hoping for a continuation of the advertised meal, some timing tweaks, dual carbs (ITC vs Kadrons vs Webers) and... some driving impressions!

Suddenly we were at the race track! Ok, looking back I should have seen that coming as all the dyno runs were peak instantaneous HP.

Anyway you are trying to get a handle on what the majority want to see not me so feel free to ignore this. I do really like the down to earth fun way it is all presented!
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Root_Werks
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PostPosted: Fri Jun 27, 2025 8:34 am    Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! Reply with quote

@oprn

That's actually a good write up. I to was hoping we'd see a lot more carb combos or other bolt on "performance" items tested.
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rayjay
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PostPosted: Fri Jun 27, 2025 9:36 am    Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! Reply with quote

I was also one of the disappointed ones. I wanted to see how the original did in a car. Then they went "hold my beer" and blew it up. Upon further reflection,,,, there is really no point in doing bolt on mods on an engine with a worn out cam.
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BFB
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PostPosted: Fri Jun 27, 2025 4:32 pm    Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! Reply with quote

Im not going to say i was disappointed as i think they did too good of a job to even put ‘disappointed’ into how their videos should be described. They did something none of the rest of us clowns has attempted to do and putting themselves out there for all the comments on how & what they should do is not an easy thing to do.
I think Oprns analogy was pretty cool but the flaw in the logic is that we sat down to a meal that none of us paid for, we were brought in and fed like a group of homeless people. So, I appreciate the stir fry main course even though it didnt go with the previous entries.

Having said that, yes i did like the first parts better than the turbo build. And i get their bordome with the meager horsepower gains BUT thats something you dont get to see often, something really practical especially for the new to vw’s guys, and proves that yes, YES you can duct your fan into the carb and get a better hp gain than buying ratio rockers. Hahaha!

I think if Fun with VDubs wanted to do another series itd be cool to do most all the same tests they did on the stock 1600 on a mild , commonly built engine , like a 1776. Try that engine w/ & w/o ratios, dual & single carbs, different size exhausts , differs dizzys ,etc, all the common stuff we never get to see tested.
Maybe as a collective we could even donate parts towards the build / series. Hell, i would.
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"how am i supposed to torque the rear wheel nut to 250 ft lbs??? " - clonebug
An interesting thing happens in forums where everyone starts parroting the same thing and "common knowledge" takes over.
Most experts aren't.
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oprn
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PostPosted: Sat Jun 28, 2025 3:37 am    Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! Reply with quote

True enough it was a free meal.

I also get that his expert has a shop to run and a living to make so extensive testing is going to cost him. In the end I believe they went for the big adrenalin hit to get the view numbers up.

To me the first part as others have said is where the gold is. The turbo bit to those of us that have tinkered with boosting held no surprises.
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