Avg. WHP for K20A3 with Intake/Exhaust/K Pro

[Hasbro]

Noob question but looking for some numbers to do statistics. Loves me my numbers. Heard the numbers before but want to hear it anew from you people. These would be without utilization of VTec Killer or reversed pin stuff. Normally aspirated.

Scenario 1. Say a typical DynoJet at sea level if stock is 136 whp. Red line around 7600 rpms? 160 whp?

Scenario 2. Above with some expert head work but for usable rpm whp. Not top end numbers. No bottom work. So maybe just a stage 1 cam. 165, 170 whp ?


I remember when I first bought the EP I got on here and asked what it would take to get 225whp normally aspirated from a K20A3. I figured it would be really easy. :mbiggrin:

[klik]

130whp. Lol

[Powers]

When I put my car on the dyno I made 163whp and 138ftlbs. That's with a cai/rh/e kpro

[monjarassi]

Yea my buddy's car on the a3 cai, rh,e,kpro,bc stg2 cams,valves,springs/retainers.
He only made 160hp on a dynojet.

[Powers]

Yea my buddy's car on the a3 cai, rh,e,kpro,bc stg2 cams,valves,springs/retainers.
He only made 160hp on a dynojet.

That's wierd man I made my numbers on a dyno jet. I'd think with those mods he'd be around 190

[klik]

The a3 was not meant to create high hp. either boost it or swap.

[tlikethedrink]

Most hope to gain what they lost from parasitic loss (ie drivetrain/accessories) from bolt ons to get crank hp numbers on the dyno.
So figure 160whp give or take 10. With bolt ons alone this isn't bad at all considering stock a2's run 170-180whp.

I read somewhere on the WWW that the a3 makes more hp in the lower rpms than all other k20 variations. Obviously the cam profile and 2200 I-vtec are to credit. But if you can bump peak numbers without loosing the lower power band the a3 could be respectable. Most just find it more economical to swap. A k24a1 with boltons ftw. Boost ftw.

Avg numbers I seen:

I/h/e : 160hp 135tq
kpro: + 5-10hp
a1 head: +10hp
A2 cams:+30hp
Aftermarket cams (I-vtec):+10-25hp

[tlikethedrink]

Yea my buddy's car on the a3 cai, rh,e,kpro,bc stg2 cams,valves,springs/retainers.
He only made 160hp on a dynojet.

Ugh. I would be disgusted. Were those get cams you ran in your k24a1 all motor set up? How many miles on that a3?


That's wierd man I made my numbers on a dyno jet. I'd think with those mods he'd be around 190

Yea stage 2 cams I would hope for 180 at least! Altitude is similar between your two... But I guess it it what it is all factors aside. Makes me scared to dyno my set up for fear of disappointment! Lol

[Hasbro]

Most hope to gain what they lost from parasitic loss (ie drivetrain/accessories) from bolt ons to get crank hp numbers on the dyno.
So figure 160whp give or take 10. With bolt ons alone this isn't bad at all considering stock a2's run 170-180whp.

I read somewhere on the WWW that the a3 makes more hp in the lower rpms than all other k20 variations. Obviously the cam profile and 2200 I-vtec are to credit. But if you can bump peak numbers without loosing the lower power band the a3 could be respectable. Most just find it more economical to swap. A k24a1 with boltons ftw. Boost ftw.

Avg numbers I seen:

I/h/e : 160hp 135tq
kpro: + 5-10hp
a1 head: +10hp
A2 cams:+30hp
Aftermarket cams (I-vtec):+10-25hp

- I/h/e : 160hp, 135 torque Is that with ReFlash?

- I'd read that the A3 was more effective at lower rpms, also. A stage one cam and headwork, intake, exhaust, K Pro, all carefully tuned a slightly lower rpm than most builds, say 175whp. Get the weight down to 2150, and that's the same whp/weight ratio as a stock weight Ep with 225whp. Pretty potent .

Just running numbers through my head. Now, it's possible to get the EP to 2,000 lbs and still be streetable.......would be equal to 235whp at stock weight.............while a K24 Frank is being slowly put together.......

[tlikethedrink]

Those are numbers in stone. More ballpark. But reflash should be good for a few more hp. Reflash will also raise your rev limit allowing you to reach 60 mph in 2nd. Which in their test shaved 1second in the 0-60 test.

Our chassis is very stout. 2700-2800 lbs. 500 lbs lost would be awesome. What would you pull? It's something I've started to consider myself. But I'm lost beyond spare and jack. I wouldn't want anything too drastic.

Thumbs up on the frank. If your building the frank I wouldn't waste $ on cams on the a3. If your building a k24a1/a2 set up I would run the k24a1 long block and have fun with it before the a2 is added. Or if you already have the a2 head, frank up the a3. Or even if you have the a1 add that to your a3. that should put you in the 170 range theoretically lol. But then at that point it's getting harder to justify the $ / effort when you have the franky in the works.

[tlikethedrink]

1)back seat is around 80 lbs
2) jack and spare is around 45lbs, pull them and add a couple cans of fix-a-flat
3) our wheels are st00pid heavy( like 19lb each), get lighter ones
4) a good cat back can drop 8-10lbs over stock
5) the stock ft brakes are 22lbs each side, wilwoods are 17lbs a side and they stop better

Rear wiper delete ~ 5-10lbs

Smaller lighter battery: 10-15lbs
-----------------------------------------------------------
150-160lbs without the wilwood kit because $. Estimating 3-4lbs per wheel due to 22lb oe rim. And using aluminum lugs.

That's major stuff done that's not $$$. Additional weight loss = carbon fiber and lexan pieces all that come to mind. Small bits lost when switching out suspension pieces may loose you 15-20 lbs.

If the plan is to do all this anyways I would go for it. But It may be cheaper to buy hp after a certain point.

In my case I don't want to loose creature comforts like AC (which I'm sure is worth 50 lbs plus parasitic loss.) and I have never "gutted" anything I've owned. Too much of a weenie I guess- but mine is currently my DD. May not be yours.

[Powers]

Hasbros car is anerexic. I'm gutted with no ac as well. All I have left to pull in the interior that I'm willing to do is the carpet and sound deadening.

I have to say. Being gutted with a tuned a3 and bolt ons makes this car feel pretty peppy. But I still want a supercharged k24a2.

I feel as if you did a z3 tranny bolt on and tuned a3 in the Ep you'd be pretty satisfied.

In my opinion this 5 speeds gearing doesn't cut it if your not turbod.

[Hasbro]

I threw T off with my sophomoric queries but the thread does help. T, I'm at about 2350 lbs. now. I have an Odyssey 680 as backup and am using a 2 lb. lithium iron battery. Need to develop a qick change plug set up. Absolute maximum weight goal is 2300 but will shoot for 2175 eventually. If my money situation ever comes to fruition, 2000 lbs. is a possibility. And, this is a dd.:mbiggrin:

I guess I'm around 146whp with the ReFlash and intake (+10 over stock). I didn't realize that Hondata's 10-12whp increase was without the header, hence the 10. After changing to the larger filter it feels like more but butt dynos are very erroneous. You may be right, Powers, another 20-30 hp and losing 100 -150 more lbs. will feel pretty good. I'll look at the z3 tranny with lsd, too. Torque steer will start to be a problem soon, I presume.

Powers, how many pounds have you pulled, now? Cai, exhaust, interior, Wilwoods, ac? Couple hundred? You should be down from 20.4/1 to around 15.6/1 or so? Jdm R is around 14.7, getting close and with better handling. I'm around 16.1/1. Just playing with calculator.

[tlikethedrink]

2350 is very respectable. I wish I had the stones to gut my dd. Estimating my goal of 240hp and dropping 350lbs would put me in the 10-1 range is very tempting!

[Powers]

I don't have a exact number but I'm going to say I'm around 2400 pounds maybe a little more little less. I still need to change out the battery pull the carpet and sound deadening material.

Just to gauge where I'm at I barley lost a race to a ap2 s2000. I was literally right on his rear bumper. I feel that with a few more pounds pulled and that z3 tranny I'd barely beat him or be dead even.

[Hasbro]

Shoot, you probably told me and I forgot. That puts you spot on with the jdm R at 14.7. Not shabby. The S2000 is around 14/1 so that sounds about right.

[T_Virus]

No Kpro but back then I had injen cai, comptech shorty header and hks exhaust that made 153whp on dynapack. Don't remember the torque. I could probably break 160 with Hondata Kpro.

[captaingamez]

Jamie Lugo's Del sol with a K20a3 makes 172 WHP on the dyno, and something like 155 tq.

All he did was port matching, enlarging an RBC intake, short ram, larger throttle body, Kpro, Ktuned exhaust header, and a good tune. The motor had nearly 200k miles on it when this tune was done, and its his girlfriends daily driver.

[tlikethedrink]

^ that sounds like a fun 'Sol.

[superchargedk20]

A3 is a good motor in the right body. Not in our ep3 lol

[wcmbrk]

K24a1head/a3 block Vtec killer setup... 192hp/153 tq on z1 cams...not much money spent for a mutt setup...very fun...8600 redline.

[Ba82Ep3]

^^^ I second that setup...

[wcmbrk]

Ba82ep3: I'm finally getting my Cartel Cams installed this week...i'll let you know how that goes...finally upgrading the ap1 valvetrain to Supertech 92's...
how you been.


^^^ I second that setup...