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N/A engine rebuild need some opinions on the direction I'm going

 
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Old 12-18-2013, 07:28 PM
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N/A engine rebuild need some opinions on the direction I'm going

So I decided to go n/a for my rebuild. I'm looking for a daily driver with some nice power. I picked up a 97 with 260k on it and those miles are not hard previous owner was an elderly lady who is the original owner and never beat on it. I checked the compression and it is definitely good. The mods I decided on are:

All new oem bearings
Type s pistons and new rings
Try y header
Vibrant high flow cat and resonator
2.5 Megan exhaust(might do vibrant muffler with custom 2.5 pipes)
Injen sri
Skunk 2 68mm throttle body
Skunk 2 intake manifold
Skunk 2 cam gears
Skunk 2 pro series stage 2 cams
Skunk 2 valves
Supertech springs and retainers
P28 obd 1 conversion
Not sure what im using for tuning(suggestions?)hondata,chrome,...
Valve job maybe port and polish head(suggestions for any possible reputable shops in nj)
All new oem seals, water pump, timing belt and t-stat
New fans and aluminum radiator and fans.

Also after much research about the cylinder walls and even tho Hondas service manual says they can be honed I still have questions on if it's a good idea to have it honed. It has good compression now but who says how long with this new setup it would last and would rather be safe then sorry. I do not want to sleeve it if I don't have to . If I have to sleeve it I would probably go turbo but I would like to stay n/a.

this is the setup I decided to go with, so just looking for opinions for people who have n/a or not but have something to share, change or recommend about this build before I pull the trigger.
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Old 12-19-2013, 05:56 AM
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Re: N/A engine rebuild need some opinions on the direction I'm going

The bits you have chosen look fine. Maybe add a balance shaft delete kit, keep that oil pressure up ;) I would go for a 5 or radius valve job and polishing and port matching where needed. I have a radius valve job on my head.

Do you think you will need an oil cooler? How hard will you be driving it? In the summer how hot does it get where you live?
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Old 12-19-2013, 06:41 AM
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Re: N/A engine rebuild need some opinions on the direction I'm going

Rebuild the motor first, the Euro R TB/INTAKE from rosko racing, go complete custom exhaust at 3", anything less is money not well spent, PM 98VTEC when you're ready for that tune, stay stock for fuel delivery, ignition and sensors those are perfect for NA.

Have the walls checked for wear, a resleeve is just a sound decision in case you decide to go turbo down the line. Also cometic gaskets, oil pump, and check the those crankshaft bearings for wear. Any valvetrain upgrades will help, but know cams are gonna mess with your base torque to get more power upstairs

EDIT:
Oh yeah Type S intake with K&N drop in fliter, all those shiny CAI are not as good enough as OEM
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Last edited by Sideswipe SI; 12-19-2013 at 06:44 AM.
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Old 12-19-2013, 02:47 PM
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Re: N/A engine rebuild need some opinions on the direction I'm going

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Originally Posted by Sideswipe SI View Post
Rebuild the motor first, the Euro R TB/INTAKE from rosko racing, go complete custom exhaust at 3", anything less is money not well spent, PM 98VTEC when you're ready for that tune, stay stock for fuel delivery, ignition and sensors those are perfect for NA.

Have the walls checked for wear, a resleeve is just a sound decision in case you decide to go turbo down the line. Also cometic gaskets, oil pump, and check the those crankshaft bearings for wear. Any valvetrain upgrades will help, but know cams are gonna mess with your base torque to get more power upstairs

EDIT:
Oh yeah Type S intake with K&N drop in fliter, all those shiny CAI are not as good enough as OEM

I concur.


I honed mine according to the service manual. I had to visit a couple shops though before I found one was comfortable with. All I did was walk in and ask them if they've worked with FRM cylinders and if they even looked at me wrong, I didn't bother. Same with the head- Stock the H22 head flows very well, so finding someone knowledgeable enough to work with them is no easy task. I didn't find anyone locally so it's still unported/polished but I did have the machine shop install the valves and stuff with a 3-angle valve job.

I ended up having my machine shop measure the cylinders to confirm I didn't need to bore, ordered the Mahle Golds for a little higher compression, and since I wasn't using OEM rings I had them hone according to the specs in the service manual.

I'm also running the Skunk2 Pro 2 valvetrain setup that's being fed by a Type-S intake, a Euro-R and throttle body prepared by Rosko, I opted for a Walbro fuel pump, and installed RDX 410cc injectors which at WOT are working at near 70% capacity so I'm glad I switched or I may have had fuel delivery issues. Plus supposedly their atomization is as good as it gets. It's all being run by Hondata.

Besides that, like Sideswipe said, I went the 3in custom exhaust. Hytec rep Tri-Y into a magnaflow cat and muffler, connected by Kteller stainless steel piping with a Vibrant Ultra Quiet resonator. I have a vid of how it sounds in my 2nd build thread.
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Old 12-20-2013, 10:53 PM
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Re: N/A engine rebuild need some opinions on the direction I'm going

Thanks for the info. It gets to about 100 degrees a couple time in the summer but definitely stays in the 90's.as far as oil pressure I'm thinking about replacing the oil pump due to mileage so what would be a good choice for an oil pump or is oem still good? Also is the skunk 2 mani/tb a proven bad choice or is it a matter of preference with the euro r step up? Not saying I'm cheaping out but there is a nice difference in price between the two setups and if it's minimal gain I'd stay with the cheaper of the two but still have quality/performance .Also are fuel pump and injectors a necessary with this setup or just a safe bet
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Old 12-21-2013, 03:08 AM
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Re: N/A engine rebuild need some opinions on the direction I'm going

Oil pump - OEM Honda for sure. If you choose to delete your balance shafts, you can get the OEM oil pump from Kaizenspeed that has the block-off plate installed for a decent price compared to getting the stuff separately. Do you have an auto tranny? Is that why you're asking about oil coolers?

The Skunk2 is a good IM, but it's been tested and compared with the Euro-R to show a better response with a forced-induction setup. On an N/A build, it will make it's peak power up higher in your RPM band than the Euro-R will, and the Euro-R has a more consistent power gain throughout the entire band than the Skunk2 does. From Rosko, I got the fully prepared IM, blockoff plates, 68mm throttle body, billet fuel rail, insulating gasket, and RDX wiring pigtails for just under $1K, but how he prepared it all is worth more to me. Aside from installing it, the only thing I added was a vacuum block, because the Euro-R has less vacuum ports than the OEM H22 IM, and I wanted to retain cruise control so it was necessary. The way it changed the behavior of the car was awesome. There's no obvious difference between no VTEC and VTEC, just a super smooth transition because there's no vacuum-actuated valves (people call them butterfly valves) to provide that dual-stage intake system of the OEM. Couldn't be happier. Plus, Rosko is an awesome guy that's made a LOT of effort to contribute to our dying community, so that deserved my money.

As for the fuel system, I'm sure stock is more than adequate for any mild to moderate N/A build. I probably could have kept my system stock, but I plan to tune to e85 at some point which will require the higher capacity pieces.
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