K20a stock internals limits??

[04SiSpeed]

Just like it says what can the internals handle on those things without instantly breaking, run safe? I was told the bottom end can handle some power.

Thanks guys, just looking for a lil more umph behind her.

[Ctd-fab]

I would say an easy 400whp all day long, every day

Consult your tuner though

[ginger]

im at 383 but im going for 500+ whp on a completly stock k20a2. then going to shoot for 620 to break the stock motor (never opened) record...

[playap07]

on the k20a3, it will hold > 300 all day with a SOLID GOOD tune. id say about 320+ on a stock motor would be pushing it. you push her too hard and she will blow her top and bottom.

[Ba82Ep3]

Mine got me to Cybertron and back... twice. Energon crystals are the ticket... punish that bish!! :mangel:


:mbiggrin:

[AKEP]

if i was a mod i think i'd ban you for 24 hours for reciting such nerdature. just to acknowledge you. thats all.

[Ba82Ep3]

Meh. It was Friday night and I was bored. Aren't I allowed a worthless post here or there? : )

[Blah1219]

Meh. It was Friday night and I was bored. Aren't I allowed a worthless post here or there? : )

NEGATIVE!!! You can rebuild me a 6 speed w/ a type-r fd and lsd. There you go.

[sleepy ep3]

on the k20a3, it will hold > 300 all day with a SOLID GOOD tune. id say about 320+ on a stock motor would be pushing it. you push her too hard and she will blow her top and bottom.
He's talking about the Rsx-s motor, the k20A2, not the stock motor

[Blah1219]

Actaully he's talking about the type-r engine with higher compression and aggressive cams. I wouldn't take it past 400 personally. I've read around that type-r cams are difficult to tune under boost.

[Ba82Ep3]

NEGATIVE!!! You can rebuild me a 6 speed w/ a type-r fd and lsd. There you go.

Get your parts together ill take care of ya... you know how to find me!

[sleepy ep3]

Actaully he's talking about the type-r engine with higher compression and aggressive cams. I wouldn't take it past 400 personally. I've read around that type-r cams are difficult to tune under boost.
I misread the title, sorry. You're right.

[Popeye]

I dunno...I think he might be talking about the A3. I have been told by several people that the A3 will handle 300 safely. I had asked the same question about a month ago.

[Blah1219]

Read his signation. K20a, kpro, lsd tranny. I would love to take that prc IM off your hand.

[Popeye]

I did. He also asked about the stock internals on his motor, which I believe is an A3, correct? I was told by 3 different senior members on here that the A3 will SAFELY hold 300, but not to go any higher.

[andyman97]

It entirely depends. There are so many variables. How many miles are on the engine? How often was the oil changed? How hard was the car driven? What climate was it driven in?

There is no magic number where an engine lets go. If you plan to boost a stock motor, you have to be prepared for the worst.

[Blah1219]

I did. He also asked about the stock internals on his motor, which I believe is an A3, correct? I was told by 3 different senior members on here that the A3 will SAFELY hold 300, but not to go any higher.

He's rockin' the K20A type-r engine, not the K20A3.. Yes you are correct on the K20A3, but he no longer has that engine.

K20A, K20A, K20A!!! Stock internals on the... K20A!!!!!!!!!!!!!!!!

[04SiSpeed]

Actaully he's talking about the type-r engine with higher compression and aggressive cams. I wouldn't take it past 400 personally. I've read around that type-r cams are difficult to tune under boost.

Thats basiclly what the tuner told me also, so i was just checking that he wasnt trying to blow me up lol. And thanks for correcting those that thought i was refering to a a3. I think i might just do a rocking n/a minor build for now. Just do a manifold and nice header, some new injectors like the RDX ones. I was doing research on that and was looking around 240-250 whp on a good tune.

Then just save for boost and to do it right. Thanks for all the feed back

[Blah1219]

Thats basiclly what the tuner told me also, so i was just checking that he wasnt trying to blow me up lol. And thanks for correcting those that thought i was refering to a a3. I think i might just do a rocking n/a minor build for now. Just do a manifold and nice header, some new injectors like the RDX ones. I was doing research on that and was looking around 240-250 whp on a good tune.

Then just save for boost and to do it right. Thanks for all the feed back

I would use a RRC intake manifold with a max bore throttle body or a 70mm TB. Hurry and pick up a IM, so I can sweep that PRC off of you. Possible trade for my BNIB function 7 LCAs w/ cash or ep3 part on top of course on your side. I'm in the middle of rebuilding my engine so they are just laying around.

[04SiSpeed]

ok thats cool man either way it will be within the next month or a lil longer i am just saving for the injector clips for the RDX injectors. damn things are almost as much as the injectors themselves. But i will deff take u up on grabbing the mani off me. Thanks for the advice btw

[EP3Casas]

dump the k20a and get an a2. 500+ yes preaze. or sc your a and make it a creamer

[Blah1219]

dump the k20a and get an a2. 500+ yes preaze. or sc your a and make it a creamer

That k20a could be a killer on a supercharger. Switch the cams to the a2 cams for easy tuning. You have the 9k ready revs on the spot and safely. He's also got the LSD 6 speed 5.1 fd. -drools- not good for turbo but I bet it would be a blast from the past on a charger. 500+ is not streetable.

[Ba82Ep3]

A bone stock JDM k20a is nasty as hell with a JRSC. I street tuned one for a friend (10psi, 93 pump) and honestly... the throttle response was fucking insane with the ITR 4.7 trans. I capped his rev limit to 8500 to help protect the charger... as he was seeing a little belt slip up there... he was using a 6 rib (it was all he could find locally).

He saw 7.5psi on the low cam, and it pulled like a bolt-on k24a1. The high cam was just retarded. I did a 5th-3rd gear downshift at 45mph and dropped the hammer (4 people in the car) and it snapped like a wild bull. No hesitation. Raw anger.

That ride makes me rethink turbo...

[Blah1219]

A bone stock JDM k20a is nasty as hell with a JRSC. I street tuned one for a friend (10psi, 93 pump) and honestly... the throttle response was fucking insane with the ITR 4.7 trans. I capped his rev limit to 8500 to help protect the charger... as he was seeing a little belt slip up there... he was using a 6 rib (it was all he could find locally).

He saw 7.5psi on the low cam, and it pulled like a bolt-on k24a1. The high cam was just retarded. I did a 5th-3rd gear downshift at 45mph and dropped the hammer (4 people in the car) and it snapped like a wild bull. No hesitation. Raw anger.

That ride makes me rethink turbo...

Do it!! hahah I thought the type-r transmissions came with a 5.1 FD? Or is it just the CTR?

[CJ89]

Just out of curiosity what would a supercharger setup for a a3 run....?(new or used) Keeping the motor bone stock.. or is that a bad idea lol srry for the noob question

[mitchlikesbikes]

Just out of curiosity what would a supercharger setup for a a3 run....?(new or used) Keeping the motor bone stock.. or is that a bad idea lol srry for the noob question

most will tell you to just swap first, but if you plan to keep the a3 here's how it goes down:

the majority get k pro right off the bat which is gonna be like 800-1000

then the jrsc(used) + extra mods (intake, exhaust, header, etc) could be anywhere from 1000 to 3000 and beyond depending on how far you take things (which is kinda limited on that blower and a stock a3)

then you have the option of a legit tune which could be anywhere from 200 to 500 or more

if any of my numbers are off the real experts can chime in haha:)

[Ba82Ep3]

Do it!! hahah I thought the type-r transmissions came with a 5.1 FD? Or is it just the CTR?

The newer CTR has the 5 FD. The DC5 ITR and the EP CTR had 4.7 FD.

[CJ89]

most will tell you to just swap first, but if you plan to keep the a3 here's how it goes down:

the majority get k pro right off the bat which is gonna be like 800-1000

then the jrsc(used) + extra mods (intake, exhaust, header, etc) could be anywhere from 1000 to 3000 and beyond depending on how far you take things (which is kinda limited on that blower and a stock a3)

then you have the option of a legit tune which could be anywhere from 200 to 500 or more

if any of my numbers are off the real experts can chime in haha:)

Thanks bro

[K20A EP3]

She aint pulling like a wild bull anymore lol................. The rebirth is coming tho hahahaha

[04SiSpeed]

How do you know what year your motor came from? I just got my k20a and i guess there is a chance its a newer one, id like to know thad be sick..

[04SiSpeed]

She aint pulling like a wild bull anymore lol................. The rebirth is coming tho hahahaha

Lol thats no good, how long did it last for? would a centrificle (not spelled right) supercharger be better? And instead of the JR could someone with a k20a run the Comptech charger??

[Blah1219]

Lol thats no good, how long did it last for? would a centrificle (not spelled right) supercharger be better? And instead of the JR could someone with a k20a run the Comptech charger??

Carfax the VIN on the engine?? Unless there's a easier way.

[Ba82Ep3]

Wasnt a fault of the SC or anything engine related... it was hydrolocked. Damn CAI... : (

[04SiSpeed]

Wasnt a fault of the SC or anything engine related... it was hydrolocked. Damn CAI... : (

Now i am back to thinking i want a SC lol, my brother has one on his s2k and it is pretty sick. He got 400whp out of it, no mods other than private label header and invidia exhuast.

[Ba82Ep3]

Just remember the SC has its top end limits. With the $$$ you could toss out to try and make an SC perform on the top end like a turbo... you might as well have gone turbo.

If you wanna nasty FWD street car and your brain cells tell you anything over 3-350whp on the street is kinda rediculous... then SC is for you.

(Dont take that wrong by the way... do what you guys wanna do with your setups. Im not hating in anyway. But honestly... who needs wheelspin in 5th gear on your way to Walmart?) lol

[04SiSpeed]

Just remember the SC has its top end limits. With the $$$ you could toss out to try and make an SC perform on the top end like a turbo... you might as well have gone turbo.

If you wanna nasty FWD street car and your brain cells tell you anything over 3-350whp on the street is kinda rediculous... then SC is for you.

(Dont take that wrong by the way... do what you guys wanna do with your setups. Im not hating in anyway. But honestly... who needs wheelspin in 5th gear on your way to Walmart?) lol

Well thats basically what i am saying. I dont need some rediculous car that doesnt get traction ever basically when i can have a car that has 350+ getting traction almost all the way.

I have honestly been looking at the kraftwerks kit and going that route with the c38 charger. I should be between 325-375 at the least with the proper pulley and if i get around to doing the RBC manifold and stuff.

[mitchlikesbikes]

Well thats basically what i am saying. I dont need some rediculous car that doesnt get traction ever basically when i can have a car that has 350+ getting traction almost all the way.

I have honestly been looking at the kraftwerks kit and going that route with the c38 charger. I should be between 325-375 at the least with the proper pulley and if i get around to doing the RBC manifold and stuff.

this sounds like a boner inducing setup dude! and i agree with dave, 350 is pushing it on a street car.

[Ba82Ep3]

Agreed. A Kraftwerks setup sounds awesome. I just wish the kit was more complete.

There are a few decent Kraftwerks builds goin together on k20a.org. Different chassis I know, but it can give you an idea of what a completed kit will look like, and give you some insight on the bugs they are having to work out along the way.

[04SiSpeed]

Agreed. A Kraftwerks setup sounds awesome. I just wish the kit was more complete.

There are a few decent Kraftwerks builds goin together on k20a.org. Different chassis I know, but it can give you an idea of what a completed kit will look like, and give you some insight on the bugs they are having to work out along the way.

Honestly that would be really helpful. Because i know the shop is going to have to fab up the IC and pipping. I didnt really see any type of vacuum hoses or oil lines listed in the kit description either so i assume that has to be worked into fabbing too.

I really just dont see how the JR or CT screw chargers even seem worth it for the money when the kraftwerks isnt much more. Those JR chargers i have heard horror storys about too so that leans me more toward the Kraftwerks too. You can get the kit for about 2900 and then you need about another 800 for injectors, intercooler, and intake manifold in my case.

[04SiSpeed]

this sounds like a boner inducing setup dude! and i agree with dave, 350 is pushing it on a street car.

I get a thread together once i get this thing going. I hate holiday season, holds up progress lol. 11:5 compression and SC'ed does sound quite yummy.

I really cant believe there isnt anyone who has done this on here, we have a lot of members. I kinda wish they did so i could talk to them lol.

[Ba82Ep3]

Yah i feel ya. I went JRSC because at the time... AC was important to me in the EP and you lose that with the rotrex. NOW... i would rather turbo over rotrex because i have so much room between the firewall and the back of the engine. I guess like anything it boils down to what you WANT versus what everyone says is best... regardless of the setup.

Heres a link to one of the better of the threads. I say better as in its an informative thread with pix and a vid. It has fairly good discussion in it too...

http://www.k20a.org/forum/showthread.php?t=88974

[Ba82Ep3]

Lol thats no good, how long did it last for? would a centrificle (not spelled right) supercharger be better? And instead of the JR could someone with a k20a run the Comptech charger??

He texted me this morning... hes looking for a k24a2 to drop in with the JRSC. Hasnt decided if hes gonna use the head off the R with the k24a2 or not. Should be interesting either way...

[04SiSpeed]

He texted me this morning... hes looking for a k24a2 to drop in with the JRSC. Hasnt decided if hes gonna use the head off the R with the k24a2 or not. Should be interesting either way...

Dude you can get a tsx motor now for like 1500 or so, was looking at em today for my integra. granted it has 80k miles but still. I think that tsx motor would rip with a R head. But im not a expert

[mitchlikesbikes]

Dude you can get a tsx motor now for like 1500 or so, was looking at em today for my integra. granted it has 80k miles but still. I think that tsx motor would rip with a R head. But im not a expert

don't really even need to bother swapping a type r head on a k24a2, the head on it is already pretty damn good

[Ba82Ep3]

K24a2 intake ports are smallish like the k20a3 intake ports are compared to the k20a2 intake ports. JDM K20a and USDM k20a2 head castings are the same. Its what's in them that makes the difference between the two.

Mixing the two head parts can give him some killer shizz (and get rid of the 25 degree VTC gear in the k24a2 head).

[04SiSpeed]

So basically open up whats there with like a RBC and get more air into that head and your good to go..

[sleepy ep3]

who needs wheelspin in 5th gear on your way to Walmart?) lol
I do. :D

[Ba82Ep3]

Lol! :D

[04SiSpeed]

I just feel like thats unneeded power in a FWD honda, stuff over like 400whp. My bro has 400 at the wheels on his s2000 and i feel like that could take another 100 with a good 265 drag radial.

Im trying to keep the EP a DD without much modding so less goes wrong, thats y i got the integra. to have 500 hp lol, or a car to drive to walmart like sleepy :D

[Blah1219]

Who needs a daily driver??? It's snowing who cares, I have a 500+ whp monster on drag radials, let's hit the streets!!

[04SiSpeed]

lol but do you really need 2 cars with 500 hp??