max rpm of a3

[classiccelica]

What can a stock bottom end a3 rev to max, without blowing it up.

[Chazwick05]

What can a stock bottom end a3 rev to max, without blowing it up.

my best advice would be to keep it under 7800, and upgrade your valve springs and retainers.

[classiccelica]

well I am investing in a k24a1 head and will be putting brian crower stage 2 cams in it and valve train, just wondering what the bottom end can handle rpm wise.

[chunky]

With appropriate valvetrain upgrades, you can rev to 8000rpm all day long on an A3. I took my a3 to 8600rpm at the track when it was cammed. When the motor came out, bearings looked fine.

[EPSpeedKing]

The redline for the Hondata reflash is set at 7700 rpms, so i would probably say that would be the max rev on stock block.

[Ep3T0n3y]

The redline for the Hondata reflash is set at 7700 rpms, so i would probably say that would be the max rev on stock block.

Thats assuming stock valve train.
Upgrade valve train = upgrade rpms

[squeak04si]

i run mine to 8k daily and im on a boosted stock motor.

[jimmyjames]

7200 if stock

[The S]

Thats assuming stock valve train.
Upgrade valve train = upgrade rpms

crank? pistons?

[classiccelica]

Well I will have the brian crower stage 2 cams and the appropiate valve train components as well. Wow so 8000rpm that is amazazing.

[jaeguyoon]

With appropriate valvetrain upgrades, you can rev to 8000rpm all day long on an A3. I took my a3 to 8600rpm at the track when it was cammed. When the motor came out, bearings looked fine.

qft!

i redline at 8k daily.

i think I'll up the redline to 8500 when i get retuned.

[classiccelica]

damn 8k daily stock bottom end? What head, cams, and valve train are you using?

[squeak04si]

i have a k24a1 head but it has the same cams and valvetrain as the a3 head. i really couldnt see going any higher than 8k.

[classiccelica]

I am getting the k24a1 head ok that is cool then.

[pynikal]

wow you really rev that high???

seems a bit eccesive.(sp)
does it make power wound up that tight??

[squeak04si]

yes, it does. actually we stopped it at 8k, it the power was climbing past 8k. with k24a1 head flowing more and the big as sc61, top end power is no problem.

[pynikal]

so the k24a1 head makes its power around 7-8k??? im going to be swapping one into mine but dont want to rev it that high. is it going to be worth my time to do this swap??

[squeak04si]

well its basically a type s head except it has the same cams and valvetrain as the a3. i guess it would be worth something on a n/a car but the real gains would be shown on a boosted car.

[civictype_r04]

I rev to 7800 that is just enough to keep your motor running and not blow it.

[pynikal]

ideally id like to be in the NA 200whp ballpark with bolt ons tune and mild head work. than possible a JRRSC and cams to follow. maybe cams before the sc. not sure yet. :noidea:

[jaeguyoon]

damn 8k daily stock bottom end? What head, cams, and valve train are you using?

k24a1 head, BC stage 3 cams, BC valve springs and retainers.

[squeak04si]

ideally id like to be in the NA 200whp ballpark with bolt ons tune and mild head work. than possible a JRRSC and cams to follow. maybe cams before the sc. not sure yet. :noidea:

a k24a1 head is gonna give you more flow for a lot less money.

[pynikal]

a k24a1 head is gonna give you more flow for a lot less money.

so with a set of nice cams it will be like "alltime vtec" !!:hippie:

[squeak04si]

so with a set of nice cams it will be like "alltime vtec" !!:hippie:

ummm, if you have the right valvetrain i think you can run some nice real vtec cams but i would ask some of the more experienced n/a guys.

[pynikal]

i was being stupid. id like to keep it as non-vtec as i can.

[squeak04si]

ok so a k24a1 head with a set of aggressive cams woiuld be cheaper than a type s head.

[pynikal]

ok so a k24a1 head with a set of aggressive cams woiuld be cheaper than a type s head.

only slightly cheaper, but cheaper.:cool:

:focus::focus::focus:

sorry to thread jack.

[RTE117]

Does the K24A1 employ the true i-VTEC configuration similar to the K20A/K20A2? I thought the K24A2 was the only 'true' VTEC K24? These motors are all new to me.

[pynikal]

k24a1 has the same ivtec that the a3 has.

[playap07]

i run mine to 8k daily and im on a boosted stock motor.

your a sick man!

[playap07]

I rev to 7800 that is just enough to keep your motor running and not blow it.

i like your idea!

[squeak04si]

your a sick man!

been doing it for 2 yrs now

[JuicyJoint316]

With appropriate valvetrain upgrades, you can rev to 8000rpm all day long on an A3. I took my a3 to 8600rpm at the track when it was cammed. When the motor came out, bearings looked fine.

speaks the truth!

mr. a3 pioneer

[Da90Ls]

so which head would whield more power a K24 head with some cams or a bare bones A2 head? Im interested in knowing.

Because if the k24 with cams is only slightly cheaper but the A2 head give more power for a little more Id rather do an A2 head swap.

[squeak04si]

so which head would whield more power a K24 head with some cams or a bare bones A2 head? Im interested in knowing.

Because if the k24 with cams is only slightly cheaper but the A2 head give more power for a little more Id rather do an A2 head swap.

ummm, that would be a hard one to decide. i think somebody on here did a k24 head with cams, maybe he will chime in.

[v1c10us]

Here is my OPINION
and thats really all it is
MOST N/A guys when they are trying to get really high numbers phase out vtec, although then the streetability of the motor isnt what it could be because they basically have vtec lobes all the time, so low end is a pita.
if you're looking for a reasonable 200 n/a whp it will be easier and more streetable with true vtec.
so my vote would be the k24a2 head.
Your car wont be a dog around town, and when you experience that 3lobe vtec with some springs and retainers and a good tune at 8k, you'll be pretty stoked in my opinion.

[clutch797]

I reved mine to 8k and it held up fine. I did fine the breaking point, It was after 8.5k and some time before 13k. Just an fyi.

[pjnoto]

What kind of power #s are you guys putting down with the k24a1 head on the a3?