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Supercharged K20a2 Vtec - Race Spec


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#796 cptkirk

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Posted 11 April 2012 - 11:11 AM

NEW THROTTLE CABLE HOLDER

Fisrt things first I have to give a massive thanks to Martin (AKA Rust and Oil) as he has very kindly made this part for me.

Due to the repositioning of the throttle body I have had to redesign the throttle cable holder, the TB is now 3" more outboard and 3.5" higher, the throtle cable did not have enough extra length in it to be able to meet the old throttle cable holder.

So a series of pictures, running from the design in CAD, through the production to the final part:


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In production


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The final Part, as receieved this morning


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#797 cptkirk

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Posted 25 April 2012 - 03:26 PM

For some reason recent posts have gone missing, oh well...

Here it is again:

Fitted new cltuch and flywheel and the weekend and also the new belt (fits like a dream), I also got the motor back in the car so its all go to get it running and ready for a track day on 2nd June.


New clutch and flywheel:

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new belt:

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#798 2lrminivan

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Posted 25 April 2012 - 03:33 PM

forum got hacked twice last week so a lot of posts where deleted !!
looking good

#799 cptkirk

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Posted 25 April 2012 - 03:38 PM

forum got hacked twice last week so a lot of posts where deleted !!
looking good


Ah haaaa, thanks for the info, not much we can do about that.

Been working on the inlet with my mate Steve and his machines, its looking a lot more like an inlet rather than a block of ali with two odd shaped holes in it.

Exhaust is off for ceramic coating and should be back within two weeks so cant start it up until then, lots of re-cable tying going on currently.

Will post some pics of inlet soon.

#800 Johanmini

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Posted 25 April 2012 - 05:19 PM

little off topic question, but where does your engine go in and out of the car, through the bottom or through the passenger side door like with me? Or are you able to take it out at the back?

#801 cptkirk

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Posted 26 April 2012 - 09:59 AM

little off topic question, but where does your engine go in and out of the car, through the bottom or through the passenger side door like with me? Or are you able to take it out at the back?


It comes out via the bottom of the car, I use a friends two poster ramp and drop it down onto the engine, its a tight squeeze with the charger on the front but it can be done, well it has been done, I did two weekends ago.......

#802 cptkirk

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Posted 26 April 2012 - 11:34 AM

Exhaust

I managed to get the new exhaust flanges all welded on and exhaust is off getting ceramic coated (inside and out) and due back in a week or so - coating done at Camcoat.co.uk

A few shots of the various parts before they went off for coating:


Headers:

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Y-Pieces:

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!80 turn:

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Edited by cptkirk, 26 April 2012 - 11:35 AM.


#803 Birdman

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Posted 26 April 2012 - 11:46 AM

Looking good.

#804 cptkirk

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Posted 26 April 2012 - 11:52 AM

TB-SC inlet manifold

A bit more progress has been made.

I discovered a fouling of the TPS on the roll cage so I have had to rotate the TB through approx 30degs (didnt get the angle right the first time as you might tell by the small pilot holes). the last few photos show it marked up ready for another go at machining (marked black to be removed). I am waiting on some grinding stones and flap wheels to sort the inner tunnel smoothness.....




Photos:

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#805 cptkirk

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Posted 26 April 2012 - 11:53 AM

Looking good.


Thanks Birdman

#806 SukiDawg

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Posted 26 April 2012 - 03:15 PM

That ceramic coating stuff is good... Have used it on a couple of work projects... Makes a big difference to adjacent component temps....

#807 cptkirk

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Posted 27 April 2012 - 03:12 PM

That ceramic coating stuff is good... Have used it on a couple of work projects... Makes a big difference to adjacent component temps....


Excellent, thats what I had hoped for and should see a general reduction in engine bay temps also.....

#808 cptkirk

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Posted 15 May 2012 - 09:18 AM

I got remapped by my tuner Scuffers yesterday with my new setup. I am very pleased with the numbers.

Dyno'd on a Rototest Dyno, bolted straight to the hubs.

Mods since last dyno =

Bell Intercooler (own design - made by Bell)
Johnson CM30 pump
Pre Rad, 26"x7"x2" Aluminium
10mm PTFE Thermal Gasket on Intake manifold (own design - made by me)
TB-SC Manifold (own design - made by me and my buddy Stevie G)
6.37" Crank Pulley
3.4" Blower Pulley
72mm Throttle Body (OBX - not a good make, steer clear of them)
Snout Clamp + extra pulleys for belt wrap and improved effectiveness of OEM auto tensioner (own design - made by me, and buddy's Stevie G and Jim Bright)
Ceramic Coating - Header, 4-2 & 2-1 parts of the exhaust



Dyno Plots:

RUN 1

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RUN 2

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RUN 3

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The numbers above are HP at the Hubs, to work out the BHP at the Flywheel add 10% for transmission losses, so 333.1 x 1.1 = 366.4BHP




And a video of the last pull - watch for the exhaust glowing red through the ceramic coating then the F-ing great flame when it hits the limiter:







I still have work to do before its back on the road but I am dead chuffed with what I got and there is room for even more power by using a smaller blower pulley......

Edited by cptkirk, 15 May 2012 - 09:29 AM.


#809 mini_in_progress

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Posted 15 May 2012 - 10:02 AM

sounds sweet but looks like that exhaust gets a tad warm

#810 Birdman

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Posted 15 May 2012 - 12:27 PM

That baby out to scream.




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