Jdm Dc5 Itr Pistons On K20a3...

[aRz]

I want to purchase a set of DC5 pistons.im putting it on my k20a3
the question is, Will i run into any problem's putting them on..?
&Is it safe, and will i have to modify anything to install them?
I found a set on www.Inlinefour.com ''pistons and rings for $200 i dont know about shipping, for the money seems like a good mod. i would be installing them with a friend who has a hybrid (b18c Eg)

[chunky]

Originally posted by aRz
I want to purchase a set of DC5 pistons.im putting it on my k20a3
the question is, Will i run into any problem's putting them on..?
&Is it safe, and will i have to modify anything to install them?
I found a set on www.Inlinefour.com ''pistons and rings for $200 i dont know about shipping, for the money seems like a good mod. i would be installing them with a friend who has a hybrid (b18c Eg)

$200 is just for the pistons. the rings are typically $120 more.

[aRz]

will every work right tho?:tongue:

[rs_1101]

i believe it should. itll raise your compression to you needing at least 91 octane. i think it works on a stock ecu.

[SiRman]

You would get the best gains from them if you get programable ECU, so you get get the timing at optimum settings, and you might as well throw a type S head on while you've got it apart.

[!@#$%]

u would need 91-93 octane to run them. You would maybe want to install a thicker head gasket depending on the gas in your area.

[klik]

How many ponies are we lookin for this?

[rs_1101]

lol. im sure u could look @ skunk2's old ep block but id expect youll be close to 200 with the a3, cuz skunk2's was like 225 with an a2 head and some othre goodies.

[Siman]

the stock a3 cams arnt a good match for the 11.5?:1 compression of type-r pistons. The reason being in that the cams dont have the longer duration for top end breathing where higher compression is key to power....like the other guys said, you might as well just buy a a2 head first then buy the pistons etc...

[rs_1101]

itll just take alot of custom work. thats all.

[chunky]

Originally posted by Siman
the stock a3 cams arnt a good match for the 11.5?:1 compression of type-r pistons. The reason being in that the cams dont have the longer duration for top end breathing where higher compression is key to power....like the other guys said, you might as well just buy a a2 head first then buy the pistons etc...

blah. I don't agree with that at all.

bumping compression increases power output at all rpm ranges. it also enables you to make power higher into the rpm range. Even with stock cams/head, you will see good gains. If you get a hondata ecu re-flash, it bet it will make power right up to 7500 instead of leveling off around 6700rpm.

but, I do agree that the install is a PITA, and unless you're willing to put in the work, or pay someone to basically rebuild your motor, it's not the mod for you.

Also, you'll probably want throw in type-s rods, new rod bearings & new head gasket while you're in there. Plus a re-hone of the cylinder walls is require to seat the new rings.

The process is easiest when you have the motor pulled from the car.

[SiRacer03]

Doesn't this chick at Honda-tech run ITR pistons on her all motor EP hatch that runs 13's flat? Oh yea, K20A3 with Type S head swap.

[chunky]

Originally posted by SiRacer03
Doesn't this chick at Honda-tech run ITR pistons on her all motor EP hatch that runs 13's flat? Oh yea, K20A3 with Type S head swap.

she posts on here from time to time. she had a type-s head swap + type-r pistons. but now she just has the full k20a motor in her car.

[aRz]

i only have 14,000 miles on my motor so ill be using stock oem bearings now how do you figure that type s rods will fit? headgasket ofcource...and re-hone'ing or shouldnt be a problem