I run this same setup in my turbo car but on a crv motor. Great numbers for a stock a3. What the max VTC you are running on this setup?

 

50* till around 5000

 

holy shit!!! what do you have for boltons? Thats absolute insanity for an A3. Please post vids.

 

Just normal boltons...

3 inch v-stack intake
PRC intake manifold
VtecKIDD header, pie cut to fit hybrid mounts
76mm Skunk 2 exhaust

 

impressive numbers man,,are you running kpro with that setup??

 

Wow great numbers man! Props for doing something different. Are you using the PND head or a PRB head?

 

head's never been unbolted, it's stock k20a3...

 

very nice setup, cheap power.

I can only imagine with better cams and header...:up:

thanks for posting the results, now people can know some good insights regarding simple upgrade..

 

So this is a stock K20a3 with A2 intake rocker setup and cams?

 

Hes running exhaust rockers on both sides so it runs on the big lobe all the time! Like Single lobe vtec killers! :up:

 

ok i run the k20a2 intake and exhaust cam with the k20a2 rocker arms modified to run vtec properly what is the difference betwwen my set up and yours is there any advantage of running it your way without the low cam

 

nice. :up:

 

thats good power for a sort of simle mod...will this have any effect on longevity?

 

hows the idle and streetability

 

I'm have idle set at 950 and it does fine, as for streetability i can hardly tell there is a difference from the stock cam set up...except for the 40+ hp up top.

I think i have a short vid of the idle let me see if i can find it

 

damn, after all the work i did to do an a1 headswap on my a3 block with skunk2 stage II cams and I only hit 180 with a PRC intake manifold, 3in intake, dcrh, and small 2.25in exhaust. I should have just done something like this with the a1 head. Maybe I will try porting my a3 head and trying this. So explain this, did you do any swapping order of the exhaust side rockers? Or is it just plain a2 cams on the exhaust side.

 

So explain this, did you do any swapping order of the exhaust side rockers? Or is it just plain a2 cams on the exhaust side.

No swapping order, just make sure you have the washers that are also on the exhaust side.

You have to have the a2 cams machined a little. Then they fit right in with exhaust rockers on both sides.

Didn't have anything machined not sure what your talking about....

u make less hp and tq below 4700rpm with this setup than your stock k20a3 that is why i use the k20a2 rocker arms modified for vtec so you run on the low cams till 4700 and then switch to the high cam to get a better powerband how ur idle do u have a vid

with a2 rockers you still never use the low cam, it's impossible to have hi/lo cam set up on a head that didn't come with LMAs.

when you do a a2 rocker swap you use a 1-2 valve vtec with the high lobe controlling both modes, I don't believe using 1 valve below 4700 would have given me any more low end.

 

You have to have the a2 cams machined a little. Then they fit right in with exhaust rockers on both sides.

 

man this thing was LOUD!!!

 

u make less hp and tq below 4700rpm with this setup than your stock k20a3 that is why i use the k20a2 rocker arms modified for vtec so you run on the low cams till 4700 and then switch to the high cam to get a better powerband how ur idle do u have a vid

 

I don't know man. This is his last dyno compared with another bolt-on A3 we tuned the same day(Blue). The main differences were that he targeted the mid-low range specifically with a TSX i.m. and a long intake. I don't have the new dyno file to directly compare, but I would say this new setup is making more power throughout the range then the average bolt-on A3(Green).

Very great results. The major differences between his setup now and a 'baseline' A3(green) is a Kid Racing header and cams. Quite remarkable for 20lbs of torque and 40whp.

 

Oh nice nice, thats pretty impressive :up:!

 

Idle video

http://www.youtube.com/watch?v=RdsHC5RLpak

 

Sounds nice idling on the big cam, I would like to do this to a K24A1 with stock TSX pistons and rods in it.

The small lobe is mainly there for emissions and fuel economy on the stock A2 cams.

 

:up:nice numbers for an A3 , impressive, i have an A3 also, im gonna look into this:up:

 

Man! That idle sounds awesome..

 

I wonder if puttin A3 exhaust rockers on both intake and exhaust side of a A2 head and ran some tsx cams if you would see any benefit from it.

 

I would use CRV or Accord exhaust rockers! Easier to come by and is what is used on most single lobe setups!

 

Very nice to see my sad dyno being used this way:silly:


Remy

 

i'm glad someone finally posted results from a setup like this. I have an a1 head with skunk2 stage II cams on my a3 block and only put down 180 on a dynojet, granted with a better header and 2.5in exhaust 190 is probably possible. I was planning on putting my a1 head and cams on a k24block with 11.1compression and seeing how it would do and then add a jrsc down the road. Now I am really intrigued on doing this setup to my a1 head on the k24 block. I just put my spare a3 exhaust rockers in zip lock baggies in case I decide to take this route. I just don't know if a "vtec killer" setup would work with a supercharger.

I think you should give it a shot by adding a jrsc on the a3 and see if you can reach 270-280hp!! Then I will know if this setup or skunk2 stage II cams would be better with a JRSC.

 

I think this set up is better for performance then any cam for the half vtec motors that is available right now.

unfortunately, my car will never be boosted, and even if i ever thought about boosting it sure wouldn't be with a JRSC. You have almost all the parts you need, just try it and if it doesn't work it takes what a weekend to return it back. I didn't make these numbers by sitting around waiting for someone to post results, you shouldn't either.

 

Im sure it would work with a jrsc and make nice results. :up:

 

just to answer some of the vtec debate.

yes, the pressure switch has been disabled and solenoid unplugged. so in that sense vtec has been shut off. I want to get a toda block off plate but that will be later.

but as far as the tune goes, i still have vtec activated so i can take advantage of the increased cells...ie. 2 fuel maps = 2 times as many rpm/fuel values. so the "low" map controls rpms 0-4500 and the "high" map controls 4500-redline with no overlap at all.

I hope that makes sense for you.

 

I can think of only one reason to keep VTEC engaged in Kpro and is just as easy to tune the low cam as the high and low cam maps, but your belief and math regarding twice the rpm/fuel values doesnt stand up, You only use one fuel map at a time so you have the SAME amount of values to use.

The only bonus that I can see to having the VTEC engage at a normal rpm is that more oil pressure and volume is added to the cam bearings and rocker shafts.