benson03

Hi guys,

I thought i may as well share our all motor build for the upcoming race session in Australia. Since running B16a last year for the racing session, the team has opted for a bigger engine to replace the B16a.

We are now running a B20vtec which has been built from top to bottom end. The plan is to keep the engine simple and maximise power output

Here is a quick run down of what it comprised of:

PR3 Head
Stock ITR Ports
Supertech valve train
Fully Serviced
CNC combustion cambers (Still under R&D)
Rocket M22x Cams
11.3:1 Compression

Bottom End
RS Machine 84.5mm pistons
H-beam Forged Rods
Fully balanced bottom end

Bolt-ons
TWM 50mm ITB's
Budget Big tube 4-2-1 headers
2.5inch exhaust system
E85 Fuel
Hondata S200

At the current moment, the car was tuned on Friday night producing 148.2kw ATW (199hp)(dynodynamics). The engine was run-in on the dyno and tune conservatively.

Here is the dyno sheet


There is more to come for this motor. With new set of header (SSR street sweepers) and new standalone ECU (Vipec) the team is hoping for over 155kws at the wheels (dynodynamics)

Stay tuned for further results

Note

Engine Built, devloped and Tuned By Uncle Dave

Thanks to Rocket for the great cams and valve seat angles

Update 4/2/09

Car went to the drag for a quick engine shakedown. Car was in circuit trim, running -ve 3 camber and circuit semi slicks. Car weigh in at 937kg without driver.

Car ran consistent 12.9@108mph all night long.

Here are some clips from the other night

http://www.youtube.com/watch?v=Dy2uD...e=channel_page

http://www.youtube.com/watch?v=MCobX...e=channel_page

Uncle Dave

Very nice well done.
Regards The Engines Developer/builder/tuner/owner

benson03

Awesome stuff Dave!

alterdcreations

why tune on e85 with the compression so low?
maybe it cheaper than gas over their?

also nice torque

Uncle Dave

E85 was used because of the cost here yes its 25% cheaper than normal gas and we just wanted to test it in a lower compression engine.
Regards Uncle Dave

gshatch

what type of racing is it for?

Uncle Dave

The car is used for supersprints (3 timed laps of a track) and track days,if we get time we will run the car Wed night this week at our local drag strip.
Regards Uncle Dave

Uncle Dave

Engine will be back on the dyno tonight I want to try pump fuel and the new Vi-PEC V88 ECU.
Regards Uncle Dave

mar778c

iTrader: (1)

OP and Uncle Dave get 3" exhaust. Also, why the M22 not the M24s?

Oh, yeah that thing must scream. Damn, Dyno Dynamics always indicate low.

Uncle Dave

Exhaust was on the car from our B16a setup and if we dont change the engine over to something else we will change the exhaust to 3".Cams where what I had laying around I would love to try Pro2 or M22xx or even M24e but I might wait till I do the next engine with more comp.And yes the Dyno Dynamics debate from what we have worked out we are anywhere between 11 to 17% low in readings to your Dyno STD's over there.
Regards Uncle Dave

Uncle Dave

After doing some very expensive mods we lost 9hp on the dyno so the rest of the tuning was only restricted to trying to tune around the mods and we did not get a chance to test the new ECU or the pump fuel.Anyway the car is in this thread when it was running our B16a engine if anyone is interested in what the car looks like
https://honda-tech.com/forums/showth...802&highlight=
Regards Uncle Dave

Slaz

Im waiting for at least 10kw atw out of this with the vipec after the d series results you had.

Shame those SSR headers were way to small, wouldnt think so with your comp, cam and stock ports.

benson03

Wont comment on headers. Yes 11.3 comp, m22x cams and stock ITR ports.

alterdcreations

very nice car. thumbs up!
so you lost power from adding a std size header over the budjet big tube?

benson03

update...

Took the setup out to the 1/4mile. We were chasing MPH so car wasnt setup for drags. Ran on circuit R compounds, with circuit wheel alignment car achieved 12.903@108.5MPH 2.0x 60ft.

Uncle Dave

Really dont think there is 10kw in the ECU @WOT with this setup,really only doing the change for more data logging as we have a 4 EGT controller and a dual lambda control box we want to run.The Hondata is doing a great job and the tuning was so easy with the TWM's.Headers we have been talking to a few more suppliers about and will just wait and see what becomes of those talks.
Regards Uncle Dave

Slaz

I was more referring to the claimed difference of the Vipec tuned D series motor that was running a hondata, unless it wasnt tuned that well to begin with, i just dont know where 10kw was going to come from between them.

I like the pat on the back for yourself in the 2nd post, too funny! lol!

benson03

We had loss power by adding a well known US branded header over the big tube rep.

Uncle Dave

I agree 100% with these 2 or any other ECU on this engine power gain or loss @WOT will be min,the D series result was a shock to me as it is my car and I had spent alot of time on the first ECU setup to make it a good car to drive everyday and it was great but since then I have done alot more with injectors and injection timing with the Vi-PEC its made no more power put now getting 440klm's per 30lts of E10 95 Octane fuel,Yeah I had to do it with the 2nd post just having a dig at the boys.
Regards Uncle Dave

benson03

Here are some clips

12.9 pass

http://www.youtube.com/watch?v=Dy2uD...e=channel_page
Bseries vs Kseries

http://www.youtube.com/watch?v=MCobX...e=channel_page

0VtecKiDD

looking good Benson!

Uncle Dave

Setup was back on the dyno today looking for a bit more power and to redo our header tests just to confirm our first results and it did all tests where within 1hp of the other day.
Regards Uncle Dave

Uncle Dave

After a few weeks of testing we fitted a set of 1000cc Injector Dynamic's injectors into our engine for testing and yes we know they are to big for this setup but I wanted to show everyone how damn good they really are we picked up 5-6hp from 3000 to 9000rpm and making the same peak power as before and this was done using the S200 Hondata.We have now fitted the Vi-PEC ECU and found a few small problems with the TWM's I will fix them up early next week and finish the tune off and then retune the S200 so its a fair comparision.
Regards Uncle Dave

tony1

Good job guys!

UncleD

iTrader: (2)

Simple build using good parts and even better tuning, showing some great results. Awesome job guys!! I'm curious what that "very expenssive" mod was that lost you power??