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Fun With VDubs
Samba Member
Joined: October 05, 2023
Posts: 78
Location: Northern Illinois
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 Posted: Wed Dec 18, 2024 2:05 pm Post subject: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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We’ve teamed up with the air-cooled experts at Seward Speed Shop to find out how much horsepower and torque can be squeezed out of a well worn 1600 dual port. Without splitting the case apart at all!
After each adjustment or part installed we’re running it on the dyno to see exactly how much power we gain, if any. We’re starting with a simple tune-up and carb adjustments. Then we’ll be testing everything from a “power pulley”, different type headers, two different ratio rockers, dual vs. single carb, anything we could possibly do to get more power out of it. There’s even talk about eventually building a “homemade” turbo system for it!
If you have any suggestions or comments on adjustments or parts that might help, please let us know! We’d really enjoy your input.
The pilot episode was filmed three days ago. Spoiler alert: we had some hurdles to jump over but the first dyno results were amazing! This project is going to be tons of fun!
We’ll be posting updates here from time to time, so stay tuned. Our plan is to have the first 30-minute episode ready by the beginning of February 2025.
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Swing on over to our YouTube channel. There we post work we're doing on our VWs, and the adventures we take them on.
@FunWithVDubs |
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vwracerdave
Samba Member
Joined: November 11, 2004
Posts: 15598
Location: Deep in the 405
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| Posted: Wed Dec 18, 2024 2:25 pm Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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Include the retail cost of each part added for a financial comparison.
Also do several exhaust systems.
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2017 Street Comp Champion - Thunder Valley Raceway Park - Noble, OK
2010 Sportsman ET Champion - Mid-America Dragway - Arkansas City, KS
1997 Sportsman ET Champion - Thunder Valley Raceway Park - Noble ,OK |
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Glenn 
Mr. 010
Joined: December 25, 2001
Posts: 79282
Location: Sneaking up behind you
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| Posted: Wed Dec 18, 2024 2:30 pm Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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Well, that exhaust is setting the bar low, so things can only get better.
Try ratio rockers.
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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare
עַם יִשְׂרָאֵל חַי |
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Fun With VDubs
Samba Member
Joined: October 05, 2023
Posts: 78
Location: Northern Illinois
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| Posted: Wed Dec 18, 2024 2:33 pm Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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| vwracerdave wrote: |
Include the retail cost of each part added for a financial comparison.
Also do several exhaust systems. |
For exhaust our plan is to test a completely stock system to see the difference between the slightly odd one that came on the engine.  Then we'll test a stinger and probably a couple of others we have at hand.
We're going to need to figure out if we want to do exhaust before or after we put dual carbs on. Probably before so we can get better use out of the intake breathing better.
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Swing on over to our YouTube channel. There we post work we're doing on our VWs, and the adventures we take them on.
@FunWithVDubs |
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Root_Werks
Samba Member
Joined: December 31, 2007
Posts: 1043
Location: San Juan Islands
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| Posted: Wed Dec 18, 2024 2:47 pm Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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Always like threads like this. It'll be fun to see your results!
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When I set my timing, why do I flush, then take a pee? |
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veedubcrazy
Samba Member
Joined: February 14, 2005
Posts: 2171
Location: La Porte, Tx.
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| Posted: Wed Dec 18, 2024 3:01 pm Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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This will be fun!  Edit: Subscribed to channel...
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1971 Squareback - "The Silver Surfer" |
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vamram
Samba Member
Joined: March 08, 2012
Posts: 7961
Location: NOVA
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| Posted: Wed Dec 18, 2024 3:31 pm Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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"Men are qualified for civil liberty in exact proportion to their disposition
to put moral chains upon their own appetites. -Edmund Burke
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Stop Russian-Soviet Aggression!!
'74 Super 9/16 - present, in refurb process.
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oprn
Samba Member
Joined: November 13, 2016
Posts: 14589
Location: Western Canada
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| Posted: Wed Dec 18, 2024 4:47 pm Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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Back in the late '60's and into the '70's every VW performance magazine did this multiple times. Always heavily sponsored by their advertisers of course...
One does wonder if much has changed since then. A lot less options now to be sure. Be sure to list your sponsors too please!
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Our cars get old, we get old but driving an old VW never gets old! |
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BFB
Samba Member
Joined: November 03, 2014
Posts: 2532
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| Posted: Wed Dec 18, 2024 4:56 pm Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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Will OP be posting the results here or is this just a shameless plug for the YouTube videos?
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An interesting thing happens in forums where everyone starts parroting the same thing and "common knowledge" takes over.
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Glenn
Mr. 010
Joined: December 25, 2001
Posts: 79282
Location: Sneaking up behind you
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| Posted: Wed Dec 18, 2024 4:56 pm Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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| BFB wrote: |
| Will OP be posting the results here or is this just a shameless plug for the YouTube videos? |
You already know the answer, it's in their signature.
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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare
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Fun With VDubs
Samba Member
Joined: October 05, 2023
Posts: 78
Location: Northern Illinois
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| Posted: Wed Dec 18, 2024 5:02 pm Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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| BFB wrote: |
| Will OP be posting the results here or is this just a shameless plug for the YouTube videos? |
We'll be discussing the results here as well.
_________________
Swing on over to our YouTube channel. There we post work we're doing on our VWs, and the adventures we take them on.
@FunWithVDubs |
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Fun With VDubs
Samba Member
Joined: October 05, 2023
Posts: 78
Location: Northern Illinois
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| Posted: Wed Dec 18, 2024 5:04 pm Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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| oprn wrote: |
Back in the late '60's and into the '70's every VW performance magazine did this multiple times. Always heavily sponsored by their advertisers of course...
One does wonder if much has changed since then. A lot less options now to be sure. Be sure to list your sponsors too please! |
We have no sponsors but are open to offers. 
_________________
Swing on over to our YouTube channel. There we post work we're doing on our VWs, and the adventures we take them on.
@FunWithVDubs |
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Rome
Samba Member
Joined: June 02, 2004
Posts: 10447
Location: Pearl River, NY
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| Posted: Wed Dec 18, 2024 5:24 pm Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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| Quote: |
| Without splitting the case apart at all |
Will you remove the original heads and rework them with 3-angle valve jobs, maybe bore for 88 mm cylinders that fit into the stock case opening; and flycutting them to raise the compression ratio slightly? And per Glenn, adding 1.4:1 rocker arms?
Or will you install larger-valve new heads and keep the 85.5 mm pistons/cylinders?
I'm looking forward to your progress and updates. |
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Dauz
Samba Member
Joined: January 05, 2010
Posts: 1861
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| Posted: Wed Dec 18, 2024 5:44 pm Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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| Add 50 shot nitrous, dry |
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oprn
Samba Member
Joined: November 13, 2016
Posts: 14589
Location: Western Canada
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| Posted: Thu Dec 19, 2024 6:09 am Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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| Fun With VDubs wrote: |
| oprn wrote: |
Back in the late '60's and into the '70's every VW performance magazine did this multiple times. Always heavily sponsored by their advertisers of course...
One does wonder if much has changed since then. A lot less options now to be sure. Be sure to list your sponsors too please! |
We have no sponsors but are open to offers. |
Good deal! I always take the "sponsored" results with a grain of salt knowing that the results will be skewed in favor of the said product!
I will be watching on your YouTube channel. You do a good job of them and they make for very pleasant viewing! More please especially your road trip adventures!
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Our cars get old, we get old but driving an old VW never gets old! |
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halfassleatherworks
Samba Member
Joined: December 09, 2018
Posts: 780
Location: Reno NV
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| Posted: Thu Dec 19, 2024 9:59 am Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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| Make up headers for a Tri Y 1 3, 2 4 vs 4 into 1 |
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oprn
Samba Member
Joined: November 13, 2016
Posts: 14589
Location: Western Canada
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| Posted: Thu Dec 19, 2024 10:06 am Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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| halfassleatherworks wrote: |
| Make up headers for a Tri Y 1 3, 2 4 vs 4 into 1 |
Yes please! If we were closer I would lend you mine in a heart beat to try out!
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Our cars get old, we get old but driving an old VW never gets old! |
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nsracing
Samba Member
Joined: November 16, 2003
Posts: 9733
Location: NOVA
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| Posted: Thu Dec 19, 2024 10:20 am Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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Oh for petesakes - this horse had been dead and kicked many times already.
We want to see how wet it gets when it rains too?  |
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mikedjames
Samba Member
Joined: July 02, 2012
Posts: 3272
Location: Hamble, Hampshire, UK
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| Posted: Thu Dec 19, 2024 10:58 am Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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Generate enough horsepower to melt pistons in a 1600 DP bus on a hill?
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Ancient vehicles and vessels
1974 VW T2 : Devon Eurovette camper with 1641 DP T1 engine, Progressive carb, full flow oil cooler, EDIS crank timed ignition.
Engine 1: 40k miles (rocker shaft clip fell off), Engine 2: 30k miles (rebuild, dropped valve). Engine 3: a JK Preservation Parts "new" engine, aluminium case: 26k miles: new top end.
Gearbox rebuild 2021 by Bears.
1979 Westerly GK24 24 foot racer/cruiser yacht Forethought of Gosport.
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NJ John
Samba Member
Joined: September 21, 2007
Posts: 2812
Location: HdG, MD & NJ
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| Posted: Thu Dec 19, 2024 2:54 pm Post subject: Re: How Much Power Can a 1600 Dual Port Make? We’re Finding Out! |
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14:1 CR and everything else stock!
Can’t wait, actually. I stream a lot of content everyday, and most VW related videos are short. I don’t like to stop what I’m doing to find another video.
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1973 standard, yellow, lowered, 3” narrowed front, 1600 blo-thru turbo w/single dell 15.4@86, so far
11.41 et buggy. Long gone
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