Small powerhouses and old school

[Tom G.]

Film, videos ???Someone could post?

Johannes you make a great job:-) It is a great research and developement on really highest level i´ve ever seen..I hope we see us this year....Perhaps i come across to the dynoday..

Bye
Tom

[Lee.C]

". preaty sneeky job on that glass front end it almost passes as a oem one."

I was fooled for alittle while too - VERY nice work dude 

[Oliver Frey]

Johannes,

Very impressive work. I have followed this thread from the beginning to your very excellent 11.58 accomplishment! I have learned a lot.

This project definitely sounds fun.

[Frallan]

How about this turbo mouse?
1641 cc

I am impressed. I think of Bob Mc Clurgs 9 s beetle from the 70-80s.
The 2007 specs of the Hyper bug-car weight with driver-1835 U.S pounds, 6 inch slicks (not  6-W's)type 1 trans,3.88 R@P

stock 69 mm VW 8 dowel crank with welded counterweights
043 heads with dual springs and 1.25 rockers
single 40 mm idf carb
stock rods
MSD ignition

2008  update -Billet heads ,intakes,and pushrod tubes- designed and made by Adam Badgett, driver of the Hyper Bug.
who also fabricated the new exhaust system as seen in the last video below.

<a href="http://www.youtube.com/v/6oKqSLvbj0M" target="_blank">http://www.youtube.com/v/6oKqSLvbj0M</a>

<a href="http://www.youtube.com/v/d2k-guT9VpA" target="_blank">http://www.youtube.com/v/d2k-guT9VpA</a>

<a href="http://www.youtube.com/v/wquvC1jeZQ8" target="_blank">http://www.youtube.com/v/wquvC1jeZQ8</a>

<a href="http://www.youtube.com/v/LstJ1c-vi30" target="_blank">http://www.youtube.com/v/LstJ1c-vi30</a>

<a href="http://www.youtube.com/v/W5aQXg9orkU" target="_blank">http://www.youtube.com/v/W5aQXg9orkU</a>


<a href="http://www.youtube.com/v/D7mJkqcanuU" target="_blank">http://www.youtube.com/v/D7mJkqcanuU</a>

[Oliver Frey]

How about this turbo mouse?
1641 cc

I am impressed. I think of Bob Mc Clurgs 9 s beetle from the 70-80s.
The 2007 specs of the Hyper bug-car weight with driver-1835 U.S pounds, 6 inch slicks (not  6-W's)type 1 trans,3.88 R@P

stock 69 mm VW 8 dowel crank with welded counterweights
043 heads with dual springs and 1.25 rockers
single 40 mm idf carb
stock rods
MSD ignition

2008  update -Billet heads ,intakes,and pushrod tubes- designed and made by Adam Badgett, driver of the Hyper Bug.
who also fabricated the new exhaust system as seen in the last video below.

Frallan, I am personal friends with Adam and Freddy Bagget the owners of the Hyberbug. This car is amazing. it runs 6.20's in the 1/8. This year they have made some changes and are still working out the bugs. Adam works for a NASCAR team in the US and is a very talented CNC programmer.

[Jon]

The mouse on the track....  talk about a sweet running engine?! Crank the volume!!

<a href="http://www.youtube.com/v/v15y0b480GY" target="_blank">http://www.youtube.com/v/v15y0b480GY</a>

[Oliver Frey]

I'd really like to know how Johannes car is geared. I'm not taking anything away from his accomplishment (hell it's one of the coolest things I've seen in years), but gearing definitely comes into play with such a small engine.

Also where is the engine being shifted? In the video it sounds out of this world.

[Jee Ent.]

From another angle..

http://jeeent.blogspot.com/2008/06/bugrun-2008.html

[Zach Gomulka]

Damn, I didnt know that was a 'glass front end until UD pointed it out, nice!!

[dangerous]

it has a low ratio transaxel R/P 4.86:1  close ratio with 1.37:1 on the fourth gear.The rims are Saco five bolt and the tires are M&H 6x26-15.
On a small engine, the weight of the rotating engine parts has to be in relation to the vehicle weight and gearing.

Would love to know the other ratios too!!

[Johannes Persson]

Hi there,

The ratios in my transaxel is R/P 4,375:1
                                        First 3,44:1
                                    second 2,54:1
                                       third  1,71:1
                                      fourth 1,35:1

The shift point is 8,5k and it never falls under 6k.
6k is at max torque, with this gearing I use the engine between max torque and max power in all four gears, this is of course more important on a "Mouse Motor" than bigger engines.

Best regards
Johannes

[dangerous]

Wow, thanks for sharing Johannes!

[Oliver Frey]

Hello Johannes,

Thank you for sharing!

BTW I read that you plan on driving the engine on the street with full tin and cooling. will you be using the red early model or the Super?

[Bruce]

The ratios in my transaxel is R/P 4,375:1
                                        First 3,44:1
                                    second 2,54:1
                                       third  1,71:1
                                      fourth 1,35:1

Do you shift out of 1st before or after the 60' mark?

[Johannes Persson]

Hello,

Oliver Frey:My blue Super is retierd from the race track and I use it on a daily basis with a 2276,10,6:1 cr,fk 46,MS230  heads,JPM rockers two stud,scat 82 crank china,CB race rods,magnum straight cut,Phyton ex from CSP 45mm(very quiet),Keihin 41mm bike carbs making 222 very drivable hp.
My plan is to make the "Screaming Mouse"(red car) street legal for next year and do smaller trips with it , but the priority will be on the drag strip.

Bruce:I really do not know if I shift before or after the 60ft, probably after because a pritty long first gear.


Regards
Johannes

[Frallan]

I just ran it in Drag racing analyzer and it comes out a shift right around the 60 ft mark or maybe just after at 63 feet with all whatever variables you might have.
I still miss the real weight of your car Johannes.
Playing a lot with the theoretical tool gives me more hp than what you have indicated, that is if your car isn´t even lighter than what has been indicated.
I also think we have a slightly wrong indication on Mantorp compared to Meca were you have the 60 ft too and reliable timing.
In no way can I simulate and match the Meca performance with Mantorp.

In any case, you have a real mighty mouse and you are very skilled in order to go that fast, first time out with new car AND new engine. Not just any engine either but what most of us will agree is fairly new territory.
Very few will do that.
(No, not that small cc engines did not go fast before but you have a new combo that is exceptional. Let me guess that you have a bunch of other improvement ideas that you are burning to test next year?)
Keep it up. As you must have noticed I am proud to "brag" about your achievements. It is just fun.

[rebel]

Hello Johannes,
Did you modyfy the VW 69mm crank in any way other than 8 dowelling?
I ask, cause I've heard stock cranks are no good for high RPMs...

[Oliver Frey]

Hello Johannes,
Did you modyfy the VW 69mm crank in any way other than 8 dowelling?
I ask, cause I've heard stock cranks are no good for high RPMs...

Counterweighted 69 mm probably.

[JS]

Original Crank, no counterweights.

[Lee.C]

I know of an english guys who takes his STOCK VW crank to over 9000rpm

[Johannes Persson]

Hi,
The crank in the "MM" is a bone stock one, only 8 dowelled and carefully balanced.
Forces created to the crank is from the weight of pistons and con rods, longer stroke and high rpm creates higher G-forces that pulls and bends the crank, and this is no good for the case.
The counterweights helps the crank to be straight.
The pistons and rods in the "MM" is much lighter than stock which means that the need for counterweights are less, I do not say that you do not need them but you defenetly need them less than with 94mm piston and long stroke.

I will show you an example on force created to the crank with a light and heavy piston at the same rpm,stroke and con rod length.

Ex:69mm stroke,8500rpm,5.4"rod and 565g piston(std) F=19276N
Ex:69mm stroke,8500rpm,5.4"rod and 375g piston(JE)  F=12793N

As you can see the created force is 50% more with the heavy std piston.To reach 12793N with the 565g piston the rpm is aprox 6800.

Keeping the weight down will save your engine and make it last longer with more performance.

Regards
Johannes

[Rasser]

Hi,
The crank in the "MM" is a bone stock one, only 8 dowelled and carefully balanced.
Forces created to the crank is from the weight of pistons and con rods, longer stroke and high rpm creates higher G-forces that pulls and bends the crank, and this is no good for the case.
The counterweights helps the crank to be straight.
The pistons and rods in the "MM" is much lighter than stock which means that the need for counterweights are less, I do not say that you do not need them but you defenetly need them less than with 94mm piston and long stroke.

I will show you an example on force created to the crank with a light and heavy piston at the same rpm,stroke and con rod length.

Ex:69mm stroke,8500rpm,5.4"rod and 565g piston(std) F=19276N
Ex:69mm stroke,8500rpm,5.4"rod and 375g piston(JE)  F=12793N

As you can see the created force is 50% more with the heavy std piston.To reach 12793N with the 565g piston the rpm is aprox 6800.

Keeping the weight down will save your engine and make it last longer with more performance.

Regards
Johannes

You make it all sound so simple ;-)

impressive stuff for sure!

[Oliver Frey]

I stand corrected

[Jordy/DVK]

You make it all sound so simple ;-)

impressive stuff for sure!

It isn't all that hard if you look into it... Most of it is just common sense...

F=m*a    a is the same for equal RPMs so the bigger the m the bigger the F...


Problem is that the lighter the parts you buy, the lighter your wallet will get as well...


BTW. Does anyone know the difference in weight between STD rods and H-beams?

[dangerous]

Hey there Johannes,
would you be so kind as to post
some pictures of the chambers and both ports of the heads.
The old ones have vanished,
and I am going crazy with anticipation having ever seen them!
Regards,
Dave.

[70Turbobug]

Johannes you do amazing work!! Amazing results! A friend of mine bought your MS230 heads - fantastic product and great service! Thanks for sharing your projects with us!

[Roman]

Slightly off target but Brian Hyerstay (not sure about the spelling) runs a 1679 g/dragster into the low nines in the US and is said to produce around 220HP and goes through the lights at 11,000 rpm!

I talked to Brian a couple of days ago and the figures above seem to be correct. It is a VERY expensive engine though, SCAT flangded crank, titanium rods etc. No expenses spared!

[Roman]

The Screaming Mouse engine is sold to Greece, but I will make a 1679 based on the same concept to a friends G/Dragster.
As it is a pure race engine the compression will be slightly over 13:1, the cam will be a bit bigger and the intake valves will be 1 mm larger.
Heads by JPM and I will make the rest of the build.
The reson for going 1679 is that re rules for Competition Eliminator G/Dragster says 232 kg/liter and a minimum weight of 386 kg.
386/232= 1663 cc. If we have a 1679 we can weigh in on 390 kg including driver.

[Rune]

Sounds like an interesting project Anders.. Keep us posted. Going to dynoday?

[Jon]

Wow Anders this sounds like a real challenge! I hope you will share your build and theories with us Loungers?!? I just wish I get to go to Dyno Day, but it doesn't look promising Fill Rune with info for me