Author |
Message |
vocho_master Samba Member
Joined: December 30, 2016 Posts: 19 Location: Plano, Texas
|
Posted: Tue Sep 12, 2017 1:49 pm Post subject: HorsePower Enhancements/Mods |
|
|
This could be an old question....
I have a 1984 MX Sedan pretty much stock. I would like to increase power from its 45HP engine.
What is the easiest/most economical change that I can implement/gain more power without breaking the bank?
So far I have change the bearings and oil pump. I have also change the ignition to be electronic instead of a mechanical OEM.
HELP HELP HELP.................
|
|
Back to top |
|
|
Glenn Mr. 010
Joined: December 25, 2001 Posts: 76762 Location: Sneaking up behind you
|
Posted: Tue Sep 12, 2017 1:59 pm Post subject: Re: HorsePower Enhancements/Mods |
|
|
Full tune up including valve adjustment and carb adjustment. The correct tire pressure also helps.
CHEAP - FAST - RELIABLE
You can only pick 2 of the above.
Increasing the performance can hurt reliability, if you don't do it right. And doing it right costs money. _________________ 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 |
|
Back to top |
|
|
vwoldbug Samba Member
Joined: January 28, 2009 Posts: 1214 Location: Ohio
|
Posted: Tue Sep 12, 2017 2:28 pm Post subject: Re: HorsePower Enhancements/Mods |
|
|
Can we see a picture under the rear lid . |
|
Back to top |
|
|
bobinphx Samba Member
Joined: August 14, 2016 Posts: 165
|
Posted: Tue Sep 12, 2017 2:39 pm Post subject: Re: HorsePower Enhancements/Mods |
|
|
in the late 1970s it was done in this order as money permitted.
1. add header (thunderbird if you recall them, then you are old)
2. remove heater boxes and run "J" tubes.
3. 009 (not a great choice today apparently)
4. bigger pistons and liners
5. lighten the flywheel (and convert to 8 dowels)
6. larger carb or carbs.
7. change cam. or run ratio rockers to mimic a larger cam
8. change to smaller tires (diameter) in order to create fake lower gearing, which made the car faster off the line and up to the top end. (freeway speeds were 55mph then)
Note that an 1835 was a monster motor back then. I suspect that there are much better ways of making HP now. |
|
Back to top |
|
|
beetlenut Samba Member
Joined: May 27, 2009 Posts: 2980 Location: RI
|
Posted: Tue Sep 12, 2017 3:06 pm Post subject: Re: HorsePower Enhancements/Mods |
|
|
Make it breath better. Dual carbs and a header. _________________ scrapyards are for quitters
---------------------------------------
Wetstuff wrote: |
... I spend more time shaking it than directing it?! I get a pretty decent blast for 8sec. then have to shake it again. |
- Words to live by right there!
My 74 Super rebuild thread: http://www.thesamba.com/vw/forum/viewtopic.php?p=6507104#6507104 |
|
Back to top |
|
|
Disaster06 Samba Member
Joined: March 22, 2017 Posts: 543 Location: Huntington Beach, CA
|
Posted: Tue Sep 12, 2017 4:41 pm Post subject: Re: HorsePower Enhancements/Mods |
|
|
...Buy a different car
sorry, it was too easy |
|
Back to top |
|
|
Multi69s Samba Member
Joined: January 24, 2006 Posts: 5360 Location: Lefty, CA
|
|
Back to top |
|
|
cletus_zuber Samba Member
Joined: January 08, 2010 Posts: 2400 Location: Gladstone, Ore
|
Posted: Tue Sep 12, 2017 6:54 pm Post subject: Re: HorsePower Enhancements/Mods |
|
|
I'd like to see what a "pretty much stock" 84 MX looks like, just for fun.The engine I mean. I've read and have posted that the 80's MX is a 68 bug with late model tailights, would like to see this confirmed.
Otherwise its how much do you want to spend and also up grade the brakes, (are they drum?) if you go big engine... _________________ 1972 1302
HPMX 40's & 019 |
|
Back to top |
|
|
vamram Samba Member
Joined: March 08, 2012 Posts: 7276 Location: NOVA
|
Posted: Tue Sep 12, 2017 7:13 pm Post subject: Re: HorsePower Enhancements/Mods |
|
|
Or you could just put a Zoom Tube on the exhaust so that it sounds fast! That's what i do... _________________ Eventually, "we are what we pretend to be.’”
Give peace a chance - Stop Russian-Soviet Aggression!!
'74 Super 9/16 - present, in refurb process.
'73 Super - 6/18 - Present - Daily Driver!
'75 Super Le Grande...waiting it's turn in line behind '74.
Click to view image
Save the Supers!! |
|
Back to top |
|
|
kevlarian Samba Member
Joined: October 16, 2014 Posts: 636 Location: Orange County, CA
|
Posted: Tue Sep 12, 2017 7:41 pm Post subject: Re: HorsePower Enhancements/Mods |
|
|
HOT VWs Magazine recently published an article discussing this exact use case. Sounds like the article was created just for you.
All the mods they applied can be done in an afternoon, and do not require the engine to be pulled...
The mods included:
Header + Exhaust
1.4:1 rocker arms and push rods
Distributor and pulley
Small single barrel dual Weber carbs
The result was a 34% HP increase and more than 10% torque increase. Totally worth the effort in my opinion.
Read the entire article here:
https://hotvws.com/content.php?contentID=38
So many people have opinions on what works. This article really puts those ideas to the test. A really good article.
Last edited by kevlarian on Tue Sep 12, 2017 7:43 pm; edited 1 time in total |
|
Back to top |
|
|
wcfvw69 Samba Purist
Joined: June 10, 2004 Posts: 13386 Location: Arizona
|
Posted: Tue Sep 12, 2017 7:42 pm Post subject: Re: HorsePower Enhancements/Mods |
|
|
bobinphx wrote: |
in the late 1970s it was done in this order as money permitted.
1. add header (thunderbird if you recall them, then you are old)
2. remove heater boxes and run "J" tubes.
3. 009 (not a great choice today apparently)
4. bigger pistons and liners
5. lighten the flywheel (and convert to 8 dowels)
6. larger carb or carbs.
7. change cam. or run ratio rockers to mimic a larger cam
8. change to smaller tires (diameter) in order to create fake lower gearing, which made the car faster off the line and up to the top end. (freeway speeds were 55mph then)
Note that an 1835 was a monster motor back then. I suspect that there are much better ways of making HP now. |
Shit! I passed the test and recognize that I'm old!
Your list is spot on. I had a thunderbird muffler and most of the other bolts ons on your list. The only one that needs to be tweaked is #6. It was actually install dual Kadrons which were all the rage back then. _________________ Contact me at [email protected]
Follow me on instagram @sparxwerksllc
Decades of VW and VW parts restoration experience.
The Samba member since 2004.
**Now rebuilding throttle bodies for VW's and Porsche's**
**Restored German Bosch distributors for sale or I can restore yours**
**Restored German Pierburg fuel pumps for sale or I can restore yours**
**Restored Porsche fuel pumps or I can restore yours**
**Restored Porsche distributors or I can restore yours** |
|
Back to top |
|
|
Ricache Samba Member
Joined: March 28, 2012 Posts: 53 Location: Wylie,TX
|
Posted: Tue Sep 12, 2017 7:52 pm Post subject: Re: HorsePower Enhancements/Mods |
|
|
vocho_master wrote: |
This could be an old question....
I have a 1984 MX Sedan pretty much stock. I would like to increase power from its 45HP engine.
What is the easiest/most economical change that I can implement/gain more power without breaking the bank?
So far I have change the bearings and oil pump. I have also change the ignition to be electronic instead of a mechanical OEM.
HELP HELP HELP.................
|
Was that pic taken at Collin Creek mall? Looks familiar
Nice bug BTW _________________ _________________________________
'70 Westy
'70 Bug |
|
Back to top |
|
|
VW_Jimbo Samba Member
Joined: May 22, 2016 Posts: 9880 Location: Huntington Beach, CA
|
Posted: Tue Sep 12, 2017 7:55 pm Post subject: Re: HorsePower Enhancements/Mods |
|
|
The air cooled vw engine is an efficient air pump! What it lacks is free flow of the air. What I mean by this, is the intake manifold, carbs, valves, and exhaust ALL restrict this flow of air and hinder performance. If you want to see some movement, go to bigger valves. Set your chambers to 66cc, and get a set of dual carbs, to one- reduce the distance between the carb threat and the combustion chamber, and 2 to get the most fuel into every cubic millimeter of air! Make that thing breath easily and it will make you smile.
I put AA heads with 40 intakes and 35 exhaust on my 1600, and I cannot believe the difference! _________________ Jimbo
There is never enough time to do it right the first time, but all the time necessary the second time!
TDCTDI wrote: |
Basically, a whole bunch of fuckery to achieve a look. |
67rustavenger wrote: |
GFY's Xevin and VW_Jimbo! |
|
|
Back to top |
|
|
kevlarian Samba Member
Joined: October 16, 2014 Posts: 636 Location: Orange County, CA
|
Posted: Tue Sep 12, 2017 8:35 pm Post subject: Re: HorsePower Enhancements/Mods |
|
|
How does 34% more Horse Power and 10% more torque *WITHOUT A SINGLE ENGINE MOD* sound? Sounds too good to be true?
Bolt on parts, with proven DYNO results...
https://hotvws.com/content.php?contentID=38 |
|
Back to top |
|
|
airschooled Air-Schooled
Joined: April 04, 2012 Posts: 12688 Location: on a bike ride somewhere
|
Posted: Tue Sep 12, 2017 11:34 pm Post subject: Re: HorsePower Enhancements/Mods |
|
|
kevlarian wrote: |
How does 34% more Horse Power and 10% more torque *WITHOUT A SINGLE ENGINE MOD* sound? Sounds too good to be true?
Bolt on parts, with proven DYNO results...
https://hotvws.com/content.php?contentID=38 |
What do you mean without a single engine mod? A bolt-on part is still an engine mod, if it is bolted on to the engine. Are you paid by the magazines to post like that?
Robbie _________________ Learn how your vintage VW works. And why it doesn't!
One-on-one tech help for your Volkswagen:
www.airschooled.com |
|
Back to top |
|
|
kevlarian Samba Member
Joined: October 16, 2014 Posts: 636 Location: Orange County, CA
|
Posted: Wed Sep 13, 2017 12:28 am Post subject: Re: HorsePower Enhancements/Mods |
|
|
asiab3 wrote: |
kevlarian wrote: |
How does 34% more Horse Power and 10% more torque *WITHOUT A SINGLE ENGINE MOD* sound? Sounds too good to be true?
Bolt on parts, with proven DYNO results...
https://hotvws.com/content.php?contentID=38 |
What do you mean without a single engine mod? A bolt-on part is still an engine mod, if it is bolted on to the engine. Are you paid by the magazines to post like that?
Robbie |
I don't consider a bolt on an "engine mod". But that's cool if you do. Hell no I ain't paid by Hot VW or any other mag. I'm just sayin that that people put claims out all they want. Hot VW Dyno'd it to see the REAL results. Very few people do that. They also did an article about creating a fuel efficient ride that tried all sorts of options looking for the best results. Another great article that tested solutions.
I feel like many people make statements with no proof other than "trust me" or "I've done it that way for years" without actual documented proof.
This guy is trying to squeeze out as much power from his stock motor as possible. This was the same goal of Hot VW's article. I found it rather fitting for the OP request.
We could argue the finer points of what an "Engine Modification" is/isn't - You might consider replacing points with a elec. ignition an engine mod. That's cool. I don't. I just consider that a elec. ignition replacement for points. I might say "I've modified my exhaust" or "I've modified my carbs" but wouldn't say I've modified the engine, unless I've made Engine changes... I guess the Rods might be considered an engine MOD... SO EVEN in my own logic, I stand corrected
To ME and engine mod is boring the cyls, stage 1/2/3 port and polish, etc. Bolt on items... meh... not so much. But I'm cool with that. If you feel I'm misleading anyone, I'll go back in and remove my comments. And If I have offended you by referencing an article when I'm attempting to give the OP all the information he can have to make an informed decision... then I apologize.
Honestly, I feel putting Dual Kadrons instead of those tiny Webers would provide even more power, and a better option, but Hey! That's cool, too. |
|
Back to top |
|
|
vocho_master Samba Member
Joined: December 30, 2016 Posts: 19 Location: Plano, Texas
|
Posted: Wed Sep 13, 2017 11:59 am Post subject: Re: HorsePower Enhancements/Mods |
|
|
Here is a pic of the engine bay.
I have changed the ignition to get a more secure spark.
|
|
Back to top |
|
|
KKiley Samba Member
Joined: March 08, 2016 Posts: 662 Location: Aruba, Jamica, nope, Kokomo
|
Posted: Wed Sep 13, 2017 12:32 pm Post subject: Re: HorsePower Enhancements/Mods |
|
|
Quote: |
I don't consider a bolt on an "engine mod". But that's cool if you do. Hell no I ain't paid by Hot VW or any other mag. I'm just sayin that that people put claims out all they want. Hot VW Dyno'd it to see the REAL results. Very few people do that. They also did an article about creating a fuel efficient ride that tried all sorts of options looking for the best results. Another great article that tested solutions.
I feel like many people make statements with no proof other than "trust me" or "I've done it that way for years" without actual documented proof.
This guy is trying to squeeze out as much power from his stock motor as possible. This was the same goal of Hot VW's article. I found it rather fitting for the OP request.
We could argue the finer points of what an "Engine Modification" is/isn't - You might consider replacing points with a elec. ignition an engine mod. That's cool. I don't. I just consider that a elec. ignition replacement for points. I might say "I've modified my exhaust" or "I've modified my carbs" but wouldn't say I've modified the engine, unless I've made Engine changes... I guess the Rods might be considered an engine MOD... SO EVEN in my own logic, I stand corrected
To ME and engine mod is boring the cyls, stage 1/2/3 port and polish, etc. Bolt on items... meh... not so much. But I'm cool with that. If you feel I'm misleading anyone, I'll go back in and remove my comments. And If I have offended you by referencing an article when I'm attempting to give the OP all the information he can have to make an informed decision... then I apologize.
Honestly, I feel putting Dual Kadrons instead of those tiny Webers would provide even more power, and a better option, but Hey! That's cool, too. |
Pay no attention to Robbie. I enjoyed the link and most of us here would agree with your definition of engine mods. Interesting to see what can be accomplished with bolt on items. _________________ 1978 Super Beetle convertible
Click to view image |
|
Back to top |
|
|
vocho_master Samba Member
Joined: December 30, 2016 Posts: 19 Location: Plano, Texas
|
Posted: Wed Sep 13, 2017 1:11 pm Post subject: Re: HorsePower Enhancements/Mods |
|
|
Interesting link, I think that it gives me a good start. I have already with the ignition. I like the #2 and #7.
In JBUGS #2 is listed for $21.00
I need to find a good price for #7
1. add header (thunderbird if you recall them, then you are old)
2. remove heater boxes and run "J" tubes.
3. 009 (not a great choice today apparently)
4. bigger pistons and liners
5. lighten the flywheel (and convert to 8 dowels)
6. larger carb or carbs.
7. change cam. or run ratio rockers to mimic a larger cam
8. change to smaller tires (diameter) in order to create fake lower gearing, which made the car faster off the line and up to the top end. (freeway speeds were 55mph then) |
|
Back to top |
|
|
cletus_zuber Samba Member
Joined: January 08, 2010 Posts: 2400 Location: Gladstone, Ore
|
Posted: Wed Sep 13, 2017 6:50 pm Post subject: Re: HorsePower Enhancements/Mods |
|
|
Thanks for the engine pic. Looks like it has been modified at some point as I doubt Chrome shrouds were factory, but heck, I don't know.
I have a 1989 issue of Hot VW's that does about the same bolt on mods as posted above. They used dellorto FRD's as the dual carbs though. _________________ 1972 1302
HPMX 40's & 019 |
|
Back to top |
|
|
|