My lsvtec build for my 99 civic ex coupe:
96 b18b1 block
Ls crank/rods
pr3 pistons
p72 gsr head
supertech dual valve springs/valves/retainers
mild port job
cold air intake
dc sport 4-1 header
greddy full exhaust
gsr intake manifold
310cc prelude injectors
s80 gsr trans

Not sure what this will yield for a compression ratio. From what I've researched it should be around 11.8:1.
Hoping to make 200+ whp. Just a daily driven street car. Have access to 93 octane gas.
I've read a lot of forums that say pro 2 cams would be too much. If you have any other decent cam suggestions they would be appreciated. Just looking for some opinions on my build. Have access to a dyno and can street tune on chrome. If I'm missing anything just ask as this is my first thread.
Thanks guys.

 

Im running the exact same pistons in my lsv with gsr head and i get 12.1:1 compressor with the calculator.

Im running pro2 in my engine in hopes of 210whp and a 12.5x slip. I wanted a large cam tho pull up top and have decent midrange. I wasnt gonna get a skunk product but for $400 brand new i couldnt beat it.

Pro2s will be fine.

 

maybe you should consider these as well if you know anyone with first hand experience with these cams



the rumor that Rocket is not making these anymore are not true, I thought so by reading honda tech but surprisingly they seem to be available through various dealers on the internet with suprising turn around times. I had to call Robert Martin to confirm that these are not some knock offs and he did confirm that he is still making these cams

 

Yeah that's what I was reading also, that they stopped making rocket cams. But thanks for letting me know! I'll definitely put these into consideration.

 

no problem, Humble Performance seems to be a reputable reseller for them if you want to ask about pricing

 

I just wasn't sure if my supertech valvetrain would be okay with the pro 2s. And since its just the ls bottom end, I can't rev past like 9k. Will I be able to make decent power with only being able to rev to 9k?

 

Not sure if my compression is too low for pro2 cams but my number are pretty low.

With everything together, comp ratio should be in the 11.8.1 - 12.0.1 Daily Driving.

head: P72 GSR

Slightly ported intake side and polish
Competition valve job done by Joe Alaniz
Supertech Hi-Comp Valve , Dual Valve Springs , Ti Retainers , Bronze Valve Guide and Seals.
Skunk2 Pro intake manifold port matched to Skunk Pro 70 TB
Skunk2 Pro 2+ cams
Skunk2 Pro cam gears
Stock Fuel Rail on RC 310CC Injectors
Injen 3" SRI with CT-Engineering Ice Box
NOLOGY HOTWIRES
ARP headstuds
Cometic 84.00 mm Thickness: .030"
Blackworks vtec coversion kit

Block: JDM B20B

ACL Race Bearings KIT
gsr/type r water and oil pump
Gates Racing Timing Belt
Wiseco 11.5.1 Pistions
Eagle Rods
Moroso Oil Pan
Stock 84MM bore NOT SLEEVED AND NO BLOCK GUARD
Moroso 2.5QT Breather Tank

Cooling System:

Mishimoto Radiator
Mishimotor Radiator hoses
Flex-a-lite Full Fan

Exhaust:

2.5" SMSP REP 4-2-2-1 Headers
2.5" Blox Test Pipe
Full 2.36 Apexi Noir Catback Exhaust System

Fuel System:

AEM 320LPH Fuel Pump
AEM Fuel Filter
AEM adjustable FPR

Tunning:

Inlinefour by Bubba
S300v2 on 91 octane

202whp 146wtq tuned at inline4four by Bubba

 

You're not afraid of ruining your valvetrain? I've been reading that the supertech springs are too stiff for the pro2 cams. Because of the higher lift you could wear your valvetrain because of that fact. Quoting from some other threads I was reading.

 

how did u only make 202.... I had a b16a with I/h/e. 62mm tb and stock pr3 mani. dynoed at 163 hp. you have almost a liter more than me and only got 202? I would like to see a dyno of your setup with pro1 or even itr cams


Posted from Honda-tech.com App for Android

 

Dyno numbers aren't important, the end results at the track are. MPH will speak volumns over dyno numbers at the end of the day.

 

OP, that IM is really going to limit your power. I've made good power with Pro2s on the 1.8 builds but remember that its the combination of parts that makes power. Look at your build list and just think about it, you'll see where your weak areas are and then just budget to get those replaced.

Nikos, yep, Rocket is still around

From the looks of it and what I've seen, that Inline Four dyno must be a low reading one. Like Derek said, dyno numbers are not everything.

 

Are there any cams in the market that you have tested that will beat the pro2 on a back to back test?

 

Nikos, I'll have to see if I have time/funds this year to test the Pro2s against a cam from Rocket. We've already talked about it but just haven't gotten around to it. But until then, I haven't done a back to back test yet on the same setup/engine.

 

thanks, it was short of a general question asking anyone about any brand that has gone head to head.

I am going to guess the pros are a good choice due to availability, price and performance but I am trying to make my own bseries cam database before I l launch my first nuke.

What is the price people pay for these in new condition? How much do they sell used? Thank you for your help in advance. I just want to get an idea what I am up against.

 

Alrite, well i will try and hit up a 1/8 miles as soon as i have time. Wish i can get to a 1/4 mile track, but its pretty far from where i live.

 

New, their around 800 or so, used they can be had for 300-600 depending on used length.

I'm having the pro1's measured as we speak, when its done i'll post up the info so people can see what the actual spec is, vs the advertised.

 

Fyi, S2 states specifically to use their pro springs/retainers w/pro cams, I wouldn't really chance that. Also, the retainers are approx half the stock retainer height to create room for max lift without or getting really close to bottoming out on the valveseals. I'm not sure if other retainers have taken this into consideration. You could always have valveguides shaved a little bit lower for more room as well.

 

thanks, again I want to show you what I am talking about valve lift vs cam lift.

I just did this plot for one of my cam profiles.

VTEC intake, 302 deg at .014" x .540" inch lift



these 2 different curves are of the same profile. One is what you measure at the cam doctor, other is what the engine is seeing. If the advertised specs that you find to be bigger or smaller than actual specs, it just does not say anything about the cam-valve behavior. I am just trying to help you by not wasting your money on cam reports that do not mean anything really in my opinion

 

If you get the @cam specs, obviously you can find the valve specs by x rocker ratio. This isn't a waste of money by any means, considering i want to do it to provide actual specs, of what people are buying. This is just when cams come in from people who switch to my cams, i'll measure. I've done alot of this already, i've just never posted results.


The pro1's i'm measuring are from a H series, They came from Aaron Lopez's motor, in which my Turbo Reapers were compared to the pro1s.
I'll have all measurements from .010 to .300,peak cam lift, OPEN/Close specs, area, and other information. I have a program in which i can re-create what you did above to show the exact same thing. based upon the infor i recieve.

 

Sorry, it can be confusing. On the graph what you see is a valve motion design based on what lift I want to see, and for this to work a cam motion curve is generated based on a model. Going backwards based on the information that you will receive, will only give you max lift if you know the exact rocker ratio. All the other numbers are going to be off.

If you were to degree the engine with the cams inside, you would be able to get these numbers but going off cam readings, off a cam doctor is not accurate enough. Sorry to bother you about this.

 

I don't think he understands the rocker ratio is not constant.

 

*sigh*.. forget it. Not gonna do it.

 

Then explain.... How will you convert the variable ratio rocker to valve lift? It certainly will not be the same for one cam vs another, so your comparisons will be useless to anyone who knows what they are looking at.

 

Do you go back and edit every post you make to make yourself look like you know what your talking about?

 

this has gone way off topic. If you guys did not read the post of what I am going to allow here and what I mean by it, some of you may find out soon and are in for a rude awakening.

This is not the place to add a witch hunt or talk about someone elses business.