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Official: K24 block, K20 head build info

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Old 02-25-2011, 07:32 PM   #26
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Default Re: Official: K24 block, K20 head build info

got a quick question... where can i send off my crankshaft to have it knife edged and balanced and all!?
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Old 03-01-2011, 03:30 PM   #27
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Default Re: Official: K24 block, K20 head build info

No help!?
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Old 07-14-2011, 03:30 PM   #28
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Default Re: Official: K24 block, K20 head build info

Good info!!!
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Old 12-06-2011, 04:51 PM   #29
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Default Re: Official: K24 block, K20 head build info

Quote:
Originally Posted by Vosachi View Post
got a quick question... where can i send off my crankshaft to have it knife edged and balanced and all!?
Quote:
Originally Posted by Vosachi View Post
No help!?
most machine shops can do it
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Old 12-20-2011, 10:14 AM   #30
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Default Re: Official: K24 block, K20 head build info

posting for a friend,
car after a road tune just went on the dyno for a base pull...
226whp and 17xlb/ft
few parts are,

head
stock ITR head
stock type r cams
skunk retainers
skunk 2 pro manifold and TB
RC 780cc injectors
OBX fuel rail
3inch intake with k&n
OBX "race" headers
custom slightly bented 3inch exhaust

Block
darton sleeved K24 89mm
CP 11.2CR pistons
balanced crank

kpro

i know its on d stock cams but i really expected more
is it the tune or what?
or that figure is ok with you guys?
i would try to get dyno graph
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Old 12-22-2011, 01:32 PM   #31
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Default Re: Official: K24 block, K20 head build info

That seem a little low but i believe whoever tuned it is just playin it safe n not wanting to be to aggressive
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Old 12-22-2011, 01:42 PM   #32
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Default Re: Official: K24 block, K20 head build info

lets hope so! cause its really dissappointing
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Old 01-03-2012, 10:19 PM   #33
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Default Re: Official: K24 block, K20 head build info

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Originally Posted by k20coupe View Post
Ok finally done with the build there are 4 dynos starting from where i got it since today
This thing REVS like a bike and it has lots of tq

Heres the dynos:

Made 274.8hp and 200tq on the last run will post that dyno sheet tomorrow


Made 293.1 and 216tq the most i made that day was 294hp


new numbers




Heres the list of parts:

Block
k24a4 87.5 bore honed and hot tanked
Wiseco 87.5 12.5 cr pistons with deep pocket valves
BP Pro I beam rods
crank was balaced and polished and knife edge
acl race series bearing

Head
Blueprint stage3 cams
IPS retainers and spring combo Im still in the stock valves

Bolt ons
rbc manifold
Hytech replica header
3.0inch exhaust
CAI
AEM EMS
550 inj

The runs were done on a DYNOMITE with 93oct

Thanks to IMPORT AUTO PROS for tunning and building this motor
and to ROBBIE from blueprint for the good prices and quality parts
what is a round about number that it cost you to build this engine? very interested in the build.
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Old 01-07-2012, 04:46 AM   #34
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Default Re: Official: K24 block, K20 head build info

Motor- K24A2 block
12.5 cp pistons 87.5mm
Stock k24a2 head
BC older cams
BC springs and retainers
Modified 45deg VTC by me
Custom Inatke Manifold
HR 74MM TB
Kidd Racing Header
J&D 3" exhaust Vbanded With Dynomax muffler
02 RSX type S tranny Mfactory LSD
Comp clutchg Stage 4
Dss axles
Road Race tuned HOT and conservative
260 whp 207 wtq

Car had a horrible intake on for dyno sitting behind radiator . Temps were 150 deg at filter more power is to be had with a real intake .Car was tuned at 210-215 deg water temp to simulate worst case on Track. Cai and CA box will be modified and tested soon. Along with custom radiator shroud. Car will be a road race car only. Our intake manifold Made 20-30 whp from 4500-6500 over ported RBC and still made power up to 8500. useable powere band is great with this setup. The BC cams we have are similar to the Type R cams in specs. we want to be around 280 with better cooler air intake. we were impressed with the overall powerband and the trq is more like a 300whp motor. A ported head and better cams will gain a ton with our setup. were going to test our intake soon and dyno with open header.
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Old 01-07-2012, 03:13 PM   #35
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Default Re: Official: K24 block, K20 head build info

curious about the intake manifold. any pics?
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Old 01-19-2012, 06:46 PM   #36
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Default Re: Official: K24 block, K20 head build info

K power assome
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Old 02-05-2012, 10:40 AM   #37
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Default Re: Official: K24 block, K20 head build info

Need help wanna see if the parts i have are compatible with each other k20 head and k24 block. can someone help please.
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Old 02-10-2012, 06:31 AM   #38
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Default Re: Official: K24 block, K20 head build info

bump it for more setups
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Old 04-09-2012, 08:48 PM   #39
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Default Re: Official: K24 block, K20 head build info

so how much would it cost me to just no the swap no mods just wondering
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Old 05-31-2012, 03:37 PM   #40
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Default Re: Official: K24 block, K20 head build info

I used to do b series forced induction setups an now I just purchased a k24a4 shortblock. I want to do a k24a4 built bottom end with the 2.6l stroker kit on a sleeved block. I would like to use a k20z head an have that built aswell. What is the highest compression I can run on e85 With itbs an still keep it streetable? Is going to a 2.6l unrealible? Also how long will it last? My shortblock is missing a waterpump,crank pully aswell as the timing chain guide. Like I said I've only built d and b series engines before. What are all the parts I need to do the build? Some people say you can't use a k24a4 oil pump for a race engine. Others say get a k20 oil pump but you have to modify the pump to make it fit the block. Anyway money is not a concern because I'm going to be taking my time on the build. I'm looking for 360whp to 380whp.
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Old 06-25-2012, 05:06 PM   #41
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Default Re: Official: K24 block, K20 head build info

Does anyone know what the head cfm is for the k24z3?
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Old 07-19-2012, 08:38 AM   #42
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Default Re: Official: K24 block, K20 head build info

Love the K motors. Currently starting a K24 swap for my 2000 sedan. So psyched!
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Old 07-23-2012, 11:31 AM   #43
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Default Re: Official: K24 block, K20 head build info

For all you k experts, what is a good fuel rail setup on a k24/k20 build?
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Old 10-12-2012, 09:57 AM   #44
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Default Re: Official: K24 block, K20 head build info

Whats a safe rpm for a stock bottom k24a4? Looking to replace a high mile k20 with it and using k20 head from a type s or Si?

Daily driver, so reliability means more then max power for me. not looking at making crazy hp or rev to 9000rpms.

Whats the difference in the bottom end between k24a4 in the accord and the K24a2 in the tsx?

I read all this over on k20a.org. but this is all back from 2004.

Quote:
At its 7900-rpm redline, the K20A2 in the Type-S has a piston speed of 4464 feet per minute (fpm). Thanks to its long stroke, the K24A1 comes close to that, running at 4225 fpm at its much lower redline of 6500 rpm. By the time you've spun your K24 up to just 6900 rpm, you're already at 4485 fpm, and at the 7900 rpm redline of the K20A2, you're at a crazy 5135 fpm.
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Old 10-25-2012, 11:33 AM   #45
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Default Re: Official: K24 block, K20 head build info

Yo I know this is an old post but did the k20a2 head straight fit on your k24 block? also did you have to bore the cylinders as for the pistons does it have to be the tsx piston or can you use the type S?
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Old 10-26-2012, 06:32 AM   #46
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Default Re: Official: K24 block, K20 head build info

^yes and no...what k24 you talking about. theres a few dif ones.
or you can jus buy a k24a2..which is basicaly a type s k20 with a fancy head.
i had a k24a2 and it had *****. type r intake manifold. race header. kpro. rdx injectors. type s (PRB) oil pump
rbc vtc gear from type s. 06 tsx cams. was a brute motor.
wish i still had it. i would have put in 09 tsx pistons and bigger cams. prolly still wouldnt get traction with that either lol

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Old 10-26-2012, 10:13 AM   #47
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Default Re: Official: K24 block, K20 head build info

I see so if I was to get the k24a2 long block it'll be a straight fit with no drilling right? plus ill be able to use the tsx stock pistons and oil pump and from there just a kpro tune? as for the boltons ill deal with it later haha
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Old 12-06-2012, 06:02 PM   #48
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Default Re: Official: K24 block, K20 head build info

Sorry for bumping an old thread.....

These are some very impressive numbers for piston/rod/cams/vt/bolt ons. Anything above 250whp NA is nasty!! I thought I took sleeving and crazy compression to get even 250+ whp. Interesting.........
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Old 05-24-2013, 10:24 AM   #49
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Default Re: Official: K24 block, K20 head build info

I'm looking to pick up a 2004 type s with k20 and garrett turbo with 7 psi. it has a BHG and will need cylinder head work. I noticed that the wiring for the spark plugs were burned off. Can I just order a replacement part and plug and play or do I need to solder it up? The pigtail is on the passenger side of the engine bay close to the firewall.
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Old 05-28-2013, 02:04 AM   #50
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Default Re: Official: K24 block, K20 head build info

Hey guys bit of a newbie with k20... just bought myself an 2003 ep3 type r ukdm... Just interested in what is different between si head and type r head and if power figures are similar... and is the k24a4 a shorter stroked block the than the other k24's. and thanks for all the info here already and sorry if i missed a post like mine.
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