TB2 PRO From Finland

[Teemu]

Hello, My ThunderBolt II PRO
http://assoracing.kuvat.fi/kuvat/Kisa%20kalustoa%202010/n4.JPG/_smaller.jpg
http://assoracing.kuvat.fi/kuvat/Kisa%20kalustoa%202010/n3.JPG/_smaller.jpg
http://assoracing.kuvat.fi/kuvat/Kisa%20kalustoa%202010/n1.JPG/_smaller.jpg

-Teemu-

[Andi]

V' nice Tee

[sickboy]

Sweet looker Teemu :punk:
so what have you got under the body ?..

[mynameismud76]

Nice paint job!!

I want that thundercat symbol also :punk:

[mradlin]

Looks great!! :yahoo: Nice work on the paint!

[Nutech Ben]

Good work, looks great!

[RCKIWI]

Very Very nice:punk:

[NUTECH RACING]

Orange and black, looks sharp!

[Teemu]

http://assoracing.kuvat.fi/kuvat/Kisa%20kalustoa%202010/n8.JPG/_smaller.jpg
http://assoracing.kuvat.fi/kuvat/Kisa+kalustoa+2010/n12.JPG/_smaller.jpg
http://assoracing.kuvat.fi/kuvat/Kisa%20kalustoa%202010/n9.JPG/_smaller.jpg

[Teemu]

Diff oils: Front 30.000cps Center 15.000cps and Rear 6.000cps.

Engine is 30.5cc, dynoed +9hp. Engine is made by JariV

[sickboy]

Sweet :punk:

30.5 cc made buy jarvi would this be a a friend or a local engine tuner ?...

So you are all ready set to go,don't forget the video let the beast rip

[Teemu]

today it was time for cut and paste ..

http://assoracing.kuvat.fi/kuvat/Projektit/n14.JPG/_smaller.jpg
http://assoracing.kuvat.fi/kuvat/Projektit/n15.JPG/_smaller.jpg
http://assoracing.kuvat.fi/kuvat/Projektit/n16.JPG/_smaller.jpg
http://assoracing.kuvat.fi/kuvat/Projektit/n17.JPG/_smaller.jpg

[RCKIWI]

Very cool great job, would be better to show instructions how you cut the tyres too:boxing:

[Croozer]

Engine is 30.5cc, dynoed +9hp. Engine is made by JariV

9 hp out of a 30.5 has got to be a record.

[NUTECH RACING]

Nice job, good mods on tire!:punk:

[dc2 man]

Diff oils: Front 30.000cps Center 15.000cps and Rear 6.000cps.

Engine is 30.5cc, dynoed +9hp. Engine is made by JariV


very nice car...

but i bet there will be lots of speculation about your engine power output,like there was about mine,my own produces 8+ hp and some peeps wouldnt believe it.

like i say with the right engine tuners,no problem.

[Teemu]

Tyres working well :yahoo:

http://assoracing.kuvat.fi/kuvat/Kisa+kalustoa+2010/n19.JPG/_smaller.jpg
http://assoracing.kuvat.fi/kuvat/Kisa+kalustoa+2010/n20.JPG/_smaller.jpg

[JariV]

There will always be speculation. The engine was dynoed and everything was honest regarding that session. Dyno was in it's original dial-in from the States and was nearly even used before.

Here's Teemu's engine's output measured on my Baja 5B. These are numbers from the wheels (with Oddified ECU and my own best pipe):
http://i5.photobucket.com/albums/y176/JariV/SnakeV2-Od6.png

[JariV]

Some more on this:

the Dyno used is a RC Dyno Systems model DSR24:
http://www.rcdynosystems.com/

My ride on it:
http://i5.photobucket.com/albums/y176/JariV/AttheDyno1.jpg

http://i5.photobucket.com/albums/y176/JariV/AttheDyno2.jpg


Setup:
Tires: Hostile Slicks (Soft) with traction additive
Gears: 19/55 (spur DDM Black Magic heavy unlightened)
Engine: ESP 30,5cc Full Ported&Modified
Piston: Ported and lightened by me
Carburetor: Walbro HDA-48 equivalent with velocity stack
Exhaust used: Snake V2
Engine spark curve management: Oddified ECU (all 10 programs)
Lightened flywheel
2 degree toe-in shims in the rear hubs.

Best performance with Snake V2 with following results:
Best power from rear wheels: 8,27 horsepower @ 14640 rpm
Best torque from rear wheels: 4,9 Nm @ 5060 rpm
Max rpms: 20.240
Oddified ECU spark chart # 6
Piston port engine.

When taken into account the rear wheel toe-in 2 degrees per wheel; Po divided by Cos(a)= P so power is 8,27hp divided by cos 4 = 8,29hp.

When drivetrain power loss of straight cut gear system without 90 degree power delivery angles (as in shaft driven differentials) and as in a Baja is taken into account the generally agreed power loss amount is 10-15% and if we take the medium value of 12,5% out of that then that equals to 1,036hp which is then added to the total amount so far.

As calculated above the engine max power is 9,33 horsepower
Equally calculated max engine torque is 5,5Nm


The engine revved over 20.000 rpms under load. Bigger torque numbers with some of the other programs as well as broader power and torque bands.

Big differencies in performance with different ECU programs; over 0,5Nm and over 1,0hp with same pipe and best/worst program. Every combination tested.