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wellcraft Samba Member
Joined: September 12, 2014 Posts: 647 Location: Georgia
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Posted: Tue Oct 28, 2014 6:30 pm Post subject: Max rpm on a 1776 engine |
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I currently have a 1600 but planning on rebuilding the motor next year to 1776 stock, My question as I will be ordering a new tach tonight and need to order the correct one, what's the max rpm's on a 1776 stock engine?
They offer 6k and 8k rpm gauges.
Thanks. |
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Glenn Mr. 010
Joined: December 25, 2001 Posts: 76761 Location: Sneaking up behind you
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Posted: Tue Oct 28, 2014 6:32 pm Post subject: |
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a 1776 is not stock. If you're using all stock internals, then get a 6k. _________________ 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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wellcraft Samba Member
Joined: September 12, 2014 Posts: 647 Location: Georgia
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Posted: Tue Oct 28, 2014 6:46 pm Post subject: |
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Glenn wrote: |
a 1776 is not stock. If you're using all stock internals, then get a 6k. |
Probably I would go with stock internals, but what about if I decide to do some upgrade to get some more hp's?
Knowing me I might end up going for a bit more.
I just would like to get some more hp but at the same time keep a reliable engine. |
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GTV Samba Member
Joined: March 27, 2004 Posts: 2084 Location: Si'ahl
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Posted: Tue Oct 28, 2014 6:49 pm Post subject: |
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wellcraft wrote: |
I just would like to get some more hp but at the same time keep a reliable engine. |
Then don't spin it to 8k. _________________ EMPI Power Rules! |
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Glenn Mr. 010
Joined: December 25, 2001 Posts: 76761 Location: Sneaking up behind you
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Posted: Tue Oct 28, 2014 6:50 pm Post subject: |
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You can buy a 8k tach, but unless you dump a lot of cash into the engine it won't turn 8k. _________________ 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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mcmscott Samba Member
Joined: March 12, 2010 Posts: 4848 Location: sanger ca
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Posted: Tue Oct 28, 2014 6:50 pm Post subject: |
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I ran a stock crank and rod 1776 to 7500 rpm with no problems. _________________ There are no stupid questions, only stupid people,
68 Ghia
67 T-1
65 Notch
02 Mexican beetle
74 Thing
15 Long travel rail
07 Nomad
05 f-250 |
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wellcraft Samba Member
Joined: September 12, 2014 Posts: 647 Location: Georgia
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Posted: Tue Oct 28, 2014 6:53 pm Post subject: |
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No, i'm not looking to spend top dollars for hp, maybe from 40 which is what I believe the car has now to maybe 70 80 hp, would love to have about 90 tho. |
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Danwvw Samba Member
Joined: July 31, 2012 Posts: 8892 Location: Oregon Coast
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Posted: Tue Oct 28, 2014 6:53 pm Post subject: |
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Considering that stock max rpm is something like 4500 RPM and even most performance engines being built for the street are only driven to about 6000 RPM maximum get the 6K Tach for best resolution. To go over 5500 or 6000 rpm your talking some serious up grades.
Even a 6000 rpm engine will need some special valve train components and it would be nice if it had forged Pistons at least. But to get 7000 your going to be talking more of a Race engine than a street engine. _________________ 1960 Beetle And 1679cc DP W-100 & Dual Zeniths! |
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wellcraft Samba Member
Joined: September 12, 2014 Posts: 647 Location: Georgia
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Posted: Tue Oct 28, 2014 6:57 pm Post subject: |
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Thanks guys, iprobably I would go with 6k. But now that im thinking, when I sell my cars I like to keep the aftermarket stuff for my next project and I know this will be one of the thing I would keep. So, might go with the 8k just for that reason. |
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wellcraft Samba Member
Joined: September 12, 2014 Posts: 647 Location: Georgia
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Posted: Tue Oct 28, 2014 6:57 pm Post subject: |
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Thanks guys, probably I would go with 6k. But now that im thinking, when I sell my cars I like to keep the aftermarket stuff for my next project and I know this will be one of the thing I would keep. So, might go with the 8k just for that reason. |
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57BLITZ Samba Member
Joined: June 12, 2012 Posts: 2385 Location: DEEK - U.S.A.
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Posted: Tue Oct 28, 2014 7:17 pm Post subject: |
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What Danwvw is saying about the "best resolution" is that the 6,000rpm gauge will be easier to read than the 8,000 rpm gauge . . . both have the same size for the face bezel, but the graduation (spacing of the numbers) will be greater on the 6,000rpm tach.
In other words, for any given rpm that the engine is spinning, the gauge needle moves farther and for that reason it will be easier to read what number it is pointing at.
Same thing goes for any other gauge . . . a 120mph speedo will be easier to read than a 180mph speedo . . . Pick the 80psi oil pressure gauge rather than a 150psi oil pressure gauge, etc.. _________________ Jesucristo es mi Seņor y Salvador! |
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Brian Samba Moderator
Joined: May 28, 2012 Posts: 8340 Location: Oceanside
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Posted: Tue Oct 28, 2014 9:44 pm Post subject: |
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6k tach? someone link me to a 6k tach, I can only find 8K tachs. _________________ Wash your hands
'69 Bug
'68 Baja Truck
'71 Bug
'68 Camper
Only losers litter |
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HRVW Samba Member
Joined: May 01, 2011 Posts: 2531 Location: Rosarito, Mexico
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Posted: Tue Oct 28, 2014 10:11 pm Post subject: |
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Nothing wrong with a 8K Tach. That's what I have with my 1776 Turbo.
Generally a stock 69mm crank can be used for a 1776 where many would stop at 4500 RPM to be on the save side.
Using a 69CW will allow that max 4500 RPM to go higher.
I can run mine and have many times up to and over 6000 RPM just sittiing still and that is using part throttle but I'm not stupid to find the limits of the engine.
With avg driving there is NO dyer need to go over 6K every time you shift gears unless the person has a lot of money to do any repairs that will occur. |
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jfats808 Samba Member
Joined: December 10, 2007 Posts: 5022 Location: oahu hawaii
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Posted: Tue Oct 28, 2014 10:22 pm Post subject: |
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As mentioned on some, I would do a cw crank, rod, flywheel and p/c set. That increases life and reliability a huge bunch. If you will consider duals, the benefits are better mpg and performance vs stock. Assess your budget. If youre thinking of a cam and nicely priced heads, take a look at tims super stockers. Now theres a sweet 70-80hp. It always comes down to budget. _________________ 2276 IDA's 86C 11-1 DD !
2017 48 Trijet DRLA's W125
Rockstar Suzuki wrote: |
You might as well put 10 year build in your bullshit sig, as it will NEVER run. Also your a dick |
You can always learn something new, even from a fool.
Check your oil levels routinely! |
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57BLITZ Samba Member
Joined: June 12, 2012 Posts: 2385 Location: DEEK - U.S.A.
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KILLERWATT Samba Member
Joined: November 18, 2003 Posts: 3298 Location: Vero Beach
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Posted: Wed Oct 29, 2014 7:41 am Post subject: |
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The one time I floated my valves was on a 1776...hex bar linkage stuck wide open on my 40idfs.
5500-6000 max depending on dual rev springs and cam. That being said I have an 8k tach now on a motor that rarely sees over 3500. |
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[email protected] Samba Member
Joined: August 15, 2002 Posts: 4394 Location: Brew City
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VDub Rising Samba Member
Joined: June 23, 2014 Posts: 17 Location: Fort Worth, Tx
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Posted: Wed Oct 29, 2014 10:25 pm Post subject: |
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I just built a 1776 with counterweighted internals and I put a 5500 rev rotor in the distributor just to be safe. I don't see the need to go any higher than that. Plus, iv seen guys do serious damage due to stuck throttles so it acts as a safety barrier. |
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67jason Samba Member
Joined: August 28, 2005 Posts: 4741 Location: behind my back feet - Pittsburg CA
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Posted: Wed Oct 29, 2014 10:30 pm Post subject: Re: Max rpm on a 1776 engine |
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wellcraft wrote: |
I currently have a 1600 but planning on rebuilding the motor next year to 1776 stock, My question as I will be ordering a new tach tonight and need to order the correct one, what's the max rpm's on a 1776 stock engine?
They offer 6k and 8k rpm gauges.
Thanks. |
too many variables to consider...max rpm could be 4800 or it could be 8800. just depends on how the motor was set up and what parts were used. most hi-po street engines redline in the 5500-7000 range. _________________ 67 bug x3
67 ghia
64 bug |
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