Ef8 Crx B20vtec Am Street/drag Build

[crxmad]

My brother and i are currently undertaking a street/drag allmotor build that has so far been just over a year in progress.

So far we have had our engine completely build for us by kelford and speedfactor at a considerable 5 figure cost!! and have completely resprayed the car in black with red pearl (4 coats and 4 coats of clear)
The interior is painted black and completely stripped,apart from leaving the factory dashboard in.
We have 2 Momo start race seats fitted saving a fair bit of weight over factory seats, Autometer phantom guages, 280mm Momo wheel on a D1 quick release boss kit.
Exterior at the moment is rather standard looking but will be changed at a later date.
Under the car is Energy suspension bushes and D2 coilover suspension with standard brakes, soon to be upgraded with aftermarket rotors and decent brake pads n fluid.
The wheels are Enkei CP035 15"x6.5 with Mickey Thompson ET Drag 22x8 Slicks.
A four point chomoly cage is the next thing on the list.

Now to the heart of it all.

Engine Block:

1998 B18CR Block bored to 2l litres
13.7:1 CR
Darton cylinder sleeves
Alloy Block guard
wiseco pistons and rings
Probe con rods
ARP headstuds,mainstuds,flywheel bolts
Knife edged and balanced crankshaft
Genuine Honda bearings
Type r waterpump and oilpump
Type r oil pickup and baffled sump
Fidanza Alloy flywheel

Head & Intake:

B16a Head
KTEC Stage 3 ( custom work done + tested)
Cometic 3 layer head gasket
Port matched Skunk Pro II manifold
70mm Throttlebody
GTIR 444cc injectors
Malpasi fuel pressure reg
Hondata intake gasket

Driveline:

S80 gearbox- Factory LSD (For now)
Xtreme 5 puck clutch 1800Lb.

Once the engine is in the car it will be tuned with a Stage3 Hondata s300 ecu, 4-1 Hytec Headers, custom air intake system.

Will update this thread as more news comes to light.

[DVSCVC]

Photos!

[BTLF3D]

what spring rate in the d2's?? also might want to change out that 5puk clutch for something a bit easier on the driveline

[grandell]

13.7:1 Cr!

[vtir.dc2]

monster of an engine! any approx power figures expected?

[J.P]

Good to see you have started up a build thread man, cant wait for this beast to start setting some uber quick times! haha..(and for a ride!)

[lowproz]

pics!

[crxmad]

Yip Will post up photos very shortly just keep an eye out

[crxmad]

Originally Posted by J.P

Good to see you have started up a build thread man, cant wait for this beast to start setting some uber quick times! haha..(and for a ride!)

Yeah bro neither can we!
Im sure you will be one of the first few to see the goods being delivered.

[crxmad]

Originally Posted by vtir.dc2

monster of an engine! any approx power figures expected?

From calculations and comparison to other engine of similar specs we should be making around 200-210kw@wheels between 10,000 and 10,500rpm
We just have to see what the dyno says. Hopefully yes!!

[crxmad]

Originally Posted by grandell

13.7:1 Cr!

Yip thats right 13.7:1 compression.Good compression is a big part of the equation when chasing high n/a power output.
If we decide to go all out later on then we will increase compression to 15:1, upgrade the fuel system and run straight methanol through 52mm IDA quad throttle bodys!

[crxmad]

Originally Posted by BTLF3D

what spring rate in the d2's?? also might want to change out that 5puk clutch for something a bit easier on the driveline

Just have Std d2 springs on them at the moment so will change those to stiffer ones at some point.
Yeah the clutch will have quite a hard bite to it should work well with our launch control when its setup.Hopefully everything holds together

[Horny_Devil]

cars sounding good will be interesting to see what kinda numbes its makes and what times it can pull


use the multi quote button so u only make one reply

[Deanis]

you cant use launch controll on a pro import/pro street car. (nzdra rule book)

launch controll is gay anyway. you should be able to drive better than a computer in an NA car with the whole flat torque curve goin on. once you get some seat time up you will have a good feel for traction.

got any pics? im keen to see the build progress on the beast. sounds good so far!

[Built4Speed]

[quote=Deanis;966894]you cant use launch controll on a pro import/pro street car. (nzdra rule book)
[quote]

Whats your defintion of launch control?
Because if its the same as mine, ie a 2 step limiter, then im pritty sure every turbocharged import running faster than a 10.0 is using it. Thats what lets them build boost on the line...

[crxmad]

Originally Posted by Deanis

you cant use launch controll on a pro import/pro street car. (nzdra rule book)

launch controll is gay anyway. you should be able to drive better than a computer in an NA car with the whole flat torque curve goin on. once you get some seat time up you will have a good feel for traction.

got any pics? im keen to see the build progress on the beast. sounds good so far!

I know what your getting at.
We are running a Hondata S300 so yeah as you will know it has adjustable vtec engagement, launch rpm limiter, and flat throttle shifting.
I do have a copy of the 06/07 NZDRA rulebook, so will have to read it more thoroughly.
And yes you are right seat time will be the key with a new car like this one.
Pics are on the way just have to upload them and as i only have access to dial up i have been putting it off lol.
May have a shot at it tonight

[Deanis]

rule book says you can use electronics for control of the engine but not traction. so i interpret that as if you were using it to spool a turbo while your car isint moving then you are sweet but if its causing you to have a traction advantage (like this will be used for) then you cant. but it isnt really that clear and i suppose you could argue that its just an engine rev limiter and only controlls engne parameters. its different to wheel sensors controlling engine speed. probably have to ring NZDRA on that. but trust me when i say you probably wont need it anyway.

traction bars from the other thread: ive got an article here in a honda tuning mag that has ef crx suspension setups for drag racing. in the front they use sperical bearings on the end of the radius rods that go into the cross member and some teflon lined bearings at the pivot points on the lower controll arms. they also used a 0-1.75 degree camber kit. they dont say where they got any of this gear from though.

[Deanis]

found it on honda tuning so you can see the photos.

How To Build a Drag Racing Honda CRX Cylinder Heads & Suspension - Honda Tuning Magazine

you should go through the articles and read all the ones called the straigt story, its a build up of a CRX drag car. dont say i didnt hook you up!!

[crxmad]

Originally Posted by Deanis

found it on honda tuning so you can see the photos.

How To Build a Drag Racing Honda CRX Cylinder Heads & Suspension - Honda Tuning Magazine

you should go through the articles and read all the ones called the straigt story, its a build up of a CRX drag car. dont say i didnt hook you up!!

Sweet bro you the man cheers!

[EVLTEK FBI AKL]

i am pretty sure the only thing that rule is getting at is not using "traction control" devices.

Using a launch limiter has never been illegal.

[crxmad]

Just a few of the painted body in Black with red pearl (alot of red!)
Ill get some more pics up shortly once ive cropped them etc, only on dial up at the mo too

[H-series]

Looking nice man, this thing should be an animal when its finished, cant wait to see it run the numbers

[Deanis]

youre gonna hate me for sayin this after you painted your bumpers but what about drilling out the back one and filling in the radiator grill.

even just filling in the front is good for 1-2kph trap speed.

[crxmad]

Originally Posted by Deanis

youre gonna hate me for sayin this after you painted your bumpers but what about drilling out the back one and filling in the radiator grill.

even just filling in the front is good for 1-2kph trap speed.

Lol. Na im not one for grudges lol.

Yeah thats a good point but being street regd we gonna need the cooling.
As for the rear bumper we do have extra paint left so drilling the rear bumper could still be an option

[crxmad]

Originally Posted by H-series

Looking nice man, this thing should be an animal when its finished, cant wait to see it run the numbers

Thanks man

I will post dyno results and track times when we get there. No doubt you will see us mixing it up with the rest of the boys.