I want to build a N/A motor but I'm not sure what route to go. I want to make as much power as possible. Other than the final drive, I'm not seeing a big difference between the Type-R K20A and the Type-S K20A2. Any advice?

<U><FONT COLOR="RED">I own a 2005 Civic Si (EP)</FONT></U>


Thanks in advance

K20A: http://www.hmotorsonline.com/s...30014



K20A2: http://www.hmotorsonline.com/s...30028



K24: http://www.hmotorsonline.com/s...30029






Modified by Earthworm Jim at 4:12 PM 7/24/2006

 

Bump to watch the topic

 

I say build up the Si motor unless you have a lot of extra $ and time.

 

go big block!!! k24 got my vote!!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CDUFF777 &raquo;</TD></TR><TR><TD CLASS="quote">I say build up the Si motor unless you have a lot of extra $ and time.</TD></TR></TABLE>

I'm willing to buy the K20A for $5600 but that will totally exhaust my savings

 

I think it's best to tell us where you are starting at that way you can plan your budget better.

 

what car will this motor be placed in ?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aznbo1626 &raquo;</TD></TR><TR><TD CLASS="quote">I think it's best to tell us where you are starting at that way you can plan your budget better.</TD></TR></TABLE>

I'm starting at $5200. I could save more for the K20A if I need too

 

voted!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cranberry &raquo;</TD></TR><TR><TD CLASS="quote">voted!</TD></TR></TABLE>

Thank very kindly

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nijia555 &raquo;</TD></TR><TR><TD CLASS="quote">what car will this motor be placed in ?</TD></TR></TABLE>

2005 EP3

 

k24, you need tq in a honda

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by shynop &raquo;</TD></TR><TR><TD CLASS="quote">k24, you need tq in a honda </TD></TR></TABLE>

I guess the block and some research could help me do a quality build

 

You already have a k motor and that is a great place to start. If you want tourque build up the valve train and stroke it up and it will add mad amounts of tourque. It you want rediculous horse power sleve it and push alot of boost. It all depends on the purpose that the motor is eventually going to serve.

What is the purpose of the motor?

Unless it is all out race you really don't need to drop that kind of money on a block when yours is already a sweet motor.

 

k24 block, a2 head, rbc manifold, bolt on's and k-pro = 12's

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by k20tuner &raquo;</TD></TR><TR><TD CLASS="quote">You already have a k motor and that is a great place to start. If you want tourque build up the valve train and stroke it up and it will add mad amounts of tourque. It you want rediculous horse power sleve it and push alot of boost. It all depends on the purpose that the motor is eventually going to serve.

What is the purpose of the motor?

Unless it is all out race you really don't need to drop that kind of money on a block when yours is already a sweet motor.</TD></TR></TABLE>

Really just for more power

The power it has it nice, just....not enough

 

If it where me I would build up the valve train first, then the other internals, red line it a 9 grand and the put on a turbo kit with a front mount, have a k-pro do all the thinkin then tune it, tune it, and tune it. Make sure you don't forget about suspension and drive train of you will have probs down the road. If you are really planning to commit and try and make some serious power start with the clutch and other drive train parts.

On a limited budget, Picture in your head what you whant it to look like and do when done, then you know what to shoot for and have an idea of a path to take. Go with what you have and put things into priority with your budget.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by k20tuner &raquo;</TD></TR><TR><TD CLASS="quote">If it where me I would build up the valve train first, then the other internals, red line it a 9 grand and the put on a turbo kit with a front mount, have a k-pro do all the thinkin then tune it, tune it, and tune it. Make sure you don't forget about suspension and drive train of you will have probs down the road. If you are really planning to commit and try and make some serious power start with the clutch and other drive train parts.

On a limited budget, Picture in your head what you whant it to look like and do when done, then you know what to shoot for and have an idea of a path to take. Go with what you have and put things into priority with your budget.</TD></TR></TABLE>

Like what for the valve train?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Earthworm Jim &raquo;</TD></TR><TR><TD CLASS="quote">Like what for the valve train?</TD></TR></TABLE>

I would get all racing retainers, valve springs, valves, port and polish the heads, and then get some racing studs and the proper gaskets. Also depending on purpose and end result cam shafts along wiht camgears for ultimate tuning. Remeber this engine thrives off of high RPMs and compresion ratios.

Do you want to go Natually asperated, Turbo, Super charger or stroker kit?

If you plan to run HIGH boost then you will have to adjust the compression accordingly.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by k20tuner &raquo;</TD></TR><TR><TD CLASS="quote">

I would get all racing retainers, valve springs, valves, port and polish the heads, and then get some racing studs and the proper gaskets. Also depending on purpose and end result cam shafts along wiht camgears for ultimate tuning. Remeber this engine thrives off of high RPMs and compresion ratios.

Do you want to go Natually asperated, Turbo, Super charger or stroker kit?

If you plan to run HIGH boost then you will have to adjust the compression accordingly.</TD></TR></TABLE>

Buddy Club head package upgrade is around $1000

 

Sounds good, but make sure you shop around ALOT!!! You might be able to get a better deal if you look at other products. I am partial to skunk2 myself and you can get valves, retainers, and springs for under a grand. Look around at different brands and websites. Don't forget about HKS, Toda, Mugen and the other big guys. Remeber, alot of times you get what you pay for!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by k20tuner &raquo;</TD></TR><TR><TD CLASS="quote">Sounds good, but make sure you shop around ALOT!!! You might be able to get a better deal if you look at other products. I am partial to skunk2 myself and you can get valves, retainers, and springs for under a grand. Look around at different brands and websites. Don't forget about HKS, Toda, Mugen and the other big guys. Remeber, alot of times you get what you pay for!</TD></TR></TABLE>

How much power do I look to gain from a head package and a nice tune (K-Pro)?

 

You aren't going to see significant results with just the valve train and k-pro, but you have just taken a big step into making a bad *** motor. Just make sure who ever puts them in knows what they are doing and you get parts that will hold up for your purposes. After that forged rods, pistons and crankshaft couldn't hurt. You could even go as far as sleeving the block.

With the upgraded valve train, if you wanted to go NA on the motor you could put in a high compression stroker kit or even just kick up the compression to about 13 to 1 and red line at about 9 grand.

If you want to go turbo or SC you could run higher boost than you could with stock internals.

Building a motor is kinda like building a house, you have to have a sturdy foundation (IE internals like valve train, pistions, rods etc...)
After the foundation is made then you can add the goodies.

The k-pro is also a very good move, in the end something will have to do all of the thinking and it is the best.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by k20tuner &raquo;</TD></TR><TR><TD CLASS="quote">You aren't going to see significant results with just the valve train and k-pro, but you have just taken a big step into making a bad *** motor. Just make sure who ever puts them in knows what they are doing and you get parts that will hold up for your purposes. After that forged rods, pistons and crankshaft couldn't hurt. You could even go as far as sleeving the block.

With the upgraded valve train, if you wanted to go NA on the motor you could put in a high compression stroker kit or even just kick up the compression to about 13 to 1 and red line at about 9 grand.

If you want to go turbo or SC you could run higher boost than you could with stock internals.

Building a motor is kinda like building a house, you have to have a sturdy foundation (IE internals like valve train, pistions, rods etc...)
After the foundation is made then you can add the goodies.

The k-pro is also a very good move, in the end something will have to do all of the thinking and it is the best.</TD></TR></TABLE>

In Georgia (where I might move) all I have to do is pass the sniffer, which isn't too hard from what I've heard...

 

Just do what i did. Built the Si motor. Its not that different from the RSX-S motor and for the $3500 you pay for the motor you can just buy a RSX-S head, ecu, etc. and make a better motor than an RSX-S. Trust me. Its worth it. My motor is build nice, a little pricey but worth it and the cheapest ruite.