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Old 05-03-2012, 10:35 PM   #1 (permalink)
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February 2011
I picked up a 1998 Honda Prelude with a motor that was on its way out. I drove it around for some time and it seemed to drive fine so was in no rush to swap out the motor.

August 2011
My girlfriend was in need of a new car and we were out looking at Honda's and came across a black 99 with a GReddy turbo kit installed in her. Spoke with the seller but didn't plan on buying the car as it needed some work to make it road worthy.
we checked out some other cars and the more I looked at other Honda's the more I was interested in this black 5th gen.

I ended up txting the seller of the black 5th gen and asked him if he would be interested in a trade (my 5th gen for his 5th gen)....after a little talking we decided on a trade and I drove away in my 99 BB6.

I took this car to Mission one night and did 3 runs with the car. As expected it did nothing special due to huge wheels/no tune/bald tires and me being new to this car. Parked the car for a while to work on getting things together for the build I had in mind for her.

September 2011
I decided I would treat myself to a birthday gift of a 5 day permit on the car so I could drive her. On the 3rd day I was a little to brisk on the throttle and pushed her to hard and she let go.....cylinder #3's con rod decided to snap of just shy of the piston skirt and poke a hole in the back of the block....this was a poor way to go but put a rush on the build.

Fast forward to today. I have a new sleeved block in the works, fresh head, valves, cams, pistons, rods, and a bunch of machine work being done.

Here are some pictures of the current state of this project.

Day#1 When I brought her home. Very dirty, bad smoke smell in the ineterior, bad alternator, axle shafts were done, tires toast, needed oil change ect ect ect....but I washed her and waxed her up all nice.


Current state

shes a little dirty from all the junk from the trees here


engine bay shot


Snail shot!


Yes.....I know....It would be removed if it wasn't for the HUGE hols under this 747 wing that is bolted to the trunk lid...Need to find a new lid to put on here...thinking CF


Another of the engine bay.

The Engine
JDM H22A block
Darton ductile iron liner sleeves
Balanced crankshaft
SCAT H-beam rods
JE 9:1 Pistons 87.5mm bore
ACL bearings STD







The Head
JDM H22A head
O-ringed for high boost applications
She still needs some bits before shes ready to go but thats on the move!








The list of things to do seems endless but right now I plan on putting the block and head together with my power goal in mind (550whp). The current turbo setup can not flow anywhere near this kind of power but it will stay for the time being.

To Do
Vent valve cover with Jegs breather tank
Re-finish valve cover in crinkle red paint
AN fittings and braided lines between head and breather tank
Remove AC pump
Remove PS pump and loop the rack
Remove ABS pump and re-route lines
Switch to smaller washer bottle
Re-paint engine bay after seam welding/spot welding
Prep engine bay for 3inch charge piping
and a whole lot more

Will post pics up once the engine is being put together...550whp in 2012 is the goal...hoping to do this on boost alone but will hit the gas if need be!

A little update.

All Skunk 2 parts are ordered.
Pro-Series 1+ Cams
Pro-Series 74mm Black Throttle Body
Cam Seals
Titanium Valve Retainers
Billet VTEC Solenoid
Pro-Series Cam Gears
Spring Base Kit
Valve Springs
Pro-Series Intake Manifold
Billet Shift Knob
VTEC Solenoid Cover
Billes Oil Cap
Radiator Cap
Pro-Series Standard Compression Valves

Few other odds and ends to pick up then its time to assemble the motor. Should be a fun build this one.

Update with some parts porn































This should help put the head together and get it ready for some big boost



Bumper removed
Charge pipes removed
Headlight out and polished up
AC lines and hardware out
Radiator out
Intercooler out

In the process of pulling the head off in the next day or two. Assess the damage done to the block. Might be able to salvage the block and build up and even crazier setup.....2.4L low compression sleeved block for 2013.....800whp...hmmmmmmm


Going to be pulling the PS and AC out tomorrow as long as the weather hold.
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Old 05-03-2012, 10:38 PM   #2 (permalink)
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nice build! clean lude!! keep us updated!
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Old 11-19-2012, 05:46 PM   #3 (permalink)
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Cleaned up the block and installed the KS Tuned Balance shaft deletion kit.
Removed a considerable amount of internal rotating mass from the motor with this as well and upped the oil pressure.
It is a little involved to install this in the motor as you need to remove the front lower case to remove the balance shafts as well as pull off the oil pan to access the oil passages you need to block.
Took about an hour and a half to do this but well worth it.

At the same time I replaced all the bottom end bearing and seals. Installed the Scat Pro Sport H-Beam con rods, JE 9:1 compression pistons and gapped all the rings accordingly.

Top end was hot tanked, did a nice valve job on the head, cleaned up all the intake and exhaust ports. Installed the Skunk 2 valves and lapped them in.

Next is to finish off the head with the rest of the Skunk 2 springs and such.


Pulled the oil pan to access the oiling ports for the balance shafts. Bit of stuff in the way.




#3 main off so I can tap and block the oil passage (its at the base of the larger hole visible in the bottom of the picture)


Bit better view of the hole I am tapping.


Front cover off to block the balance shaft openings.


KS Tuned Balance Shaft Delete plate and plugs installed on the front cover.


Here's the front of the block with the front cover removed. The two large holes are where the balance shafts use to run. These things were heavy and robbed some power....GONE I SAY!!


Front cover re-installed on the block. Removed some excess rotating mass and cleaned up the block.....still needs to be steam cleaned, now that the plugs are in its off to be cleaned and painted up.


Here is the o-ringed cylinder head after a nice bath having the Skunk 2 valves lapped into there freshly cut seats. This has to be the first time I have used a micrometer to measure seat width but should be worth it when the temps get high.


APR studs in the block and test fitting the head. Had to order some new dowels to position the HG on there and locate the block. Yes, the pistons have oil on them, the sleeves are steel so I did not want them to rust while we are building.....expecting a bit of smoke on start up haha....will have to get a video on start up.

That's it for now. Have some more parts on order so I can get the head complete and installed on the block. Hope to have that complete in 1-2 weeks time. Then its time to pull the old motor and clean up the engine bay for the new heart.....looking forward to this. Plan is to have the motor in there and running but Jan 1/2013....End of 2013 +700whp BECAUSE RACE CAR!!
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Old 11-23-2012, 03:01 AM   #4 (permalink)
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nice build but your asking for trouble with ARP studs on the head only , for $100 for main studs to even out the force is money well spent . reusing stretched OEM main bolts with the power figure your chasing = bottom end failure . do it once do it right mate . love what your doing tho ( besides these small short cuts )
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Old 06-27-2013, 12:49 PM   #5 (permalink)
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Originally Posted by PHATTZY View Post
nice build but your asking for trouble with ARP studs on the head only , for $100 for main studs to even out the force is money well spent . reusing stretched OEM main bolts with the power figure your chasing = bottom end failure . do it once do it right mate . love what your doing tho ( besides these small short cuts )
Sadly, I do not have pics of these, but I am using ARP studs through the build. It has been together and apart a few times now just updating things I wanted to do better.
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Old 06-27-2013, 01:04 PM   #6 (permalink)
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Build update. Been a while since the update so this one may be a big one. I had to make some changes to the build. Mainly the turbo I will be using right now. I'm going to stick with the Greddy unit for now. The other setup I will be using for peek power and when I have another suitable daily driver to take its place.

With that said, lets see the pics.


Skunk 2 springs and caps all paired up. Made sure to measure overall length of the springs as Skunk2 had an issue in the past with length issues. All springs are within spec.


S2 valves are in, S2 bases are in and new OE Honda valve stem seals to keep it all fresh.


Valves, springs, caps and retainers put in the head. All fitting nicely and going well. I have since switched out the lifters for the newer spring type found in the later year 5th gens.


Just a closer look at the springs/caps/valves in the head. Love the titanium stuff.


Skunk 2 Pro +1 cams with Skunk 2 gears set on the head. I decided to run the stock cams just to speed up the build a bit. This way I do not have to degree the cams as I will be doing that on the dyno. With the setup and the boost levels I plan on running I will be looking at nearly 100hp gain from these cams alone. Pretty excited to be getting that type of gain for that little amount of effort.


Pulled the head on the old motor to find this. I knew that one of the cylinders had some damage. Was not nearly as bad as I expected for the amount of dram it caused. #4 melted down and scored the cylinder wall pretty good.
I will be sending this block back out to be sleeved and keept for a spare in the event I pop this new one.


The old head in the back of the truck. Look at that oil sprayed all over the bottom of the IM....what a mess!


Now block and head just sitting in the truck. Moving stuff to the new shop! WOOO WOOO
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Old 06-27-2013, 01:17 PM   #7 (permalink)
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Looking forward to cleaning this mess up. Way to may lines and wires. Need to clean up this mess. Was considering doing a tuck and shave while I have the motor out but I need to get the car on the road sooner than I had planned. The wifes car has to come off the road as one of the pistons is knocking due to a bad ring.


Another look at #4 and the piston damage. You can see the scuffing of the cylinder wall in this pic. I could hone out the cylinder and run it like that but I want to build up this block for some serious SERIOUS boost for when I blow the current build.


Here is the setup that will go into the car. It's still missing many pieces but you get the idea here. VC needs paint and some welding for the oil breather. Oil pan is getting bungs welded on for oil return and a few other things. Overall I'm pleased with the progress.


Another look. Forgot to take pics up to this point but installed new VTEC soilinoid from S2, new cap, rebuilt distributor, bolted down the head and cams. Since this pic I put the stock cams and gears back in and will swap over to the S2 ones for the dyno.


Not the pretties looking thing at the moment but it will make for some fun driving thats for sure.


With all that increase in air need to get the TB a bit bigger. This is the large TB you can get from S2 for this motor. It is mated to a port matched S2 intake manifold.



New breather tank. I hate the polished/chrome look so I hit it up with some purple.....after all I am royalty!
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Old 06-27-2013, 10:59 PM   #8 (permalink)
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Well well well..you really did post some nice pics of that car.... guess that black beauty just rocks..awesome work man..thanks for sharing..
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Old 06-29-2013, 04:13 AM   #9 (permalink)
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You literally posted each single part of your ride...and you also got some neat setup out there..i really appreciate your effort.
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