Hi, I've just finished my setup and I want to know what you think about the numbers: Good, Bad, suggestions? I know that I have to change my exhaust to a 2.5" minimum. For what it's worth, the temperatue in the tune shop was 40C / 104F. If you don't feel like writing, just answer te poll. Here is the scoop:

Head:

-Stock GSR P72 Head
-Skunk2 Tuner Series Stage 2 Camshafts (with Skunk2 valves, retainers, springs)
***Both cams are at 0 degree***

Block:

-JDM B20b (Bored to 84.5mm)
-CP Pistons 84.5mm 11.5:1cr
-Eagle Rods
-Balanced crank
-KMS Block Girdle and Block Gard

Intake:

-FUJITA 3" COLD AIR INTAKE
-Skunk2 Pro Series Intake manifold (ported to 68mm)
-SKunk2 68MM Throttle body

Exhaust:

-DC Sports 4-1 Ceramic Header 2.25"
-MagnaFlow High Flow Converter 2.5"
-Mugen Twin-loop muffler 2.25"

Fuel:

-Stock fuel rail
-Precision 310cc
-Walbro 255LPH

Here are some pics and a vid:




YouTube Dyno run video

Dyno sheet



Thanks,

 

i would say besides the muffler you need a header with a 2.5' collector. also are you running the gsr manifold? that would hurt your topend. also you probably need some cam gear tuning. when i had the s2s2's the v2v clearances where very very close at 0'0.

 

I have a skunk2 pro serie intake manifold.

 

You need a better header, at least a 2.5" exhaust if not 3" and you need to tune your cams/gears.

 

i voted bad for 2 main reasons:

1. you put large cams on a stock cylinder head with no port/polish and without adjusting the cam gears...we don't even know what size injectors and fuel pump you're running...so yea...

2. you're trying too hard to score JDM points with a restrictive axle back i.e. twin loop muffler...can't serve 2 masters...either go all out or sign up for the next jdm car sh0w.

here's something for you...my old B20V setup...something you can shoot for when you actually get around to building a proper B20V:

 

You're about average just need to add some bigger injectors if u don't have em already and a bigger header and lots of tuning 220 with the unported head is possible..

 

like the others said before.....get rid of the header and your current exhaust setup. go three inch all the way to the muffler and find you a header that has a 2.5" ID on the collector. the numbers are not bad for the exhaust you have on there but at the same time they are not great when you consider the size of the engine with those cams. lastly, i dont believe the 104 temp in the shop aided your pull

 

Put a good header and 3'' exhaust, you'll make 210whp+ all day long..

alot of b20's lately making these insane low torque numbers this is the 5th dyno making under 150ft of torque..

I was making almost 170ft of torque on smaller cams then what most people are running..geez.

Also, put your gears at +3 I and -2 e , get a better exhaust and thank us later.

 

I have seen this graph so many times and everytime you forget to post up what setup you had that made such great power.
Thanks mate

 

How does he know what V2V clearances he has once he puts the cams to youre specs. OP were the cams properly degreed in.

 

Its tuner series cams, you dont run into v2v problems.. infact, i dont think in the entire history of me being on Ht, (since 03) have i ever heard of v2v contact unless someone is an idiot with tuner series cams..

Check around these settings are pretty much dead on universal for tuner stage 2's..
this isn't pro series we're talking about..

 

Dam i need to stop confusing the tuner series with the pro series. Thanks mate
I will be running S2S2 tuner cams in my b20v with 12.5cr CP pistons...im aiming for 13ish CR tough to take the full efect of e85. I know it will be undercammed butt my goal is 230whp and if it makes more, il be happy.

 

I am 13.0CR on 93 pump gas, i ran the s2s2's for the majority of the build on my built b20vtec, was happy with them. Easily 220whp with those cams.. i trapped 110mph in a full interior dc2 on street tires with these cams.. i just swapped them out for the pro2's.

 

What would you recomend. The engine is going into a full interior dc2 asweel. The head i have is a jdm PnP by alaniz b16 head that has been milled to the limit already and i will have to resurface it again cuzz i made a small scratch on the mating surface rite by the combustion chamber. I know for a fact i will have to order a custom tickness headgasket. Rite now all i have to do is drop of the block at the machine shop so they boore it out to 84.5 mm with 3tou p2w clearances and resurface the block and ill start assembling it. About the headgasket. Im a noob. How would i figure out what tickness i need. Hey op sorry for treadjaking youre tread. Reply to my IM thing. Dont want to get the op pised of

 

Just because that head has been ported by ALANIZ doesnt mean it will outperform your stock head, because it sounds like the head has been used before. Unless you have had it thoroughly/professionally checked out, it could have loose guides, bad valve seating surfaces, valve job pounded out to hell, etc. etc. Just a word of advice.

 

I have a mint gsr head available just in case. This head is getting rebuilt with new supertech flat face valves, supertech dual valve springs etc etc etc. The guy i bough it from ran ctr cams on it.

 

I'd send that head to CC, let him port it out for you, and sell that b16 head..
just my two cents personally.

if its a b20vtec thats built correctly, in a full interior dc2 it should run high 12's all day long.. i was trapping what should be mid to high 12's.. and now i'm making a good bit more power then what i was on the s2s2's, and i also lost 780lbs going from a dc2 to a EG hatch.. i'll be back at the track soon i had to replace my oil pump but i'm expecting low low 12's..and 240+whp.
I put down 215whp and about 167 of torque with my gears set at 0/0(because i wanted to start fresh on the settings) and stock ign maps on cromepro.
If i could have had time to adjust the gears i would assume 220+whp was easily attended , and also more if i had time to tune the ign maps and not use stock p30 ign maps.

Just a fyi, i've only had to pull timing out of the 2-3rpms range at high load.. car runs fine on pump gas for such a high CR..its all in the tune..
I dont know what your tuning with, but i'd suggest running neptune or ectune..

 

I got the head for a great price so why not run it. But why sell it.?

Good luck with youre set up. It will be tunned on either s300 or ame ems...cant decide wich one to buy. I will be happy with 230 whp and what ever torque it yields me. But from what you said ure engine made on pump gas. Mines is gonna have a tad more compresion and on e85 fuel so it shuld produce some nice numbers.

 

seems like a good build i put a better header on it though, hytech, rmf etc

 

n/a thats not too bad but **** could deff be done to give it a better response like they said but i keep my vote b20vtec>itr swap

 

Definitely, I have to change the whole exhaust. I choose twin loop for less noise. Last year, I got three 152$ tickets in a month in Montreal for my exhaust being too loud. And, I’m not the kind of driver that guns the car every corner either. As for the JDM points, I really don’t give a ****. I didn’t build the car to show off; I want something nice that produces what it should. That’s all.

BTW, I have 310cc injectors (running almost 90% duty cycle @ 8500RPM - No need to tell me, I know I need bigger ones) with a walbro 255lph fuel pump (I updated my post)
Thanks for the info, I'll check that out!
Thanks, I didn't know any reputable exhaust makers. I've learnt the hard way that DC sport is just show and that there is really nothing worth the expense about them.

 

kinda disappointing thought it would make at least 210whp

 

I think those numbers are kinda low, I also think you should be in the 200+ area. My buddie has a stock b20v with bolt ons and itr cams and hes at 190whp.