hello fellow gas burners im on track building a b20v so far

stock bore b20 block
gsr head p&p
ferrea 5000 valves
skunk 2 ultra intake manifold
skunk 2 stage 3 cams
stock b20 rods and cranck
oem type r oil pump
b16 water pump
90mm tb
hondatas300
gsr lsd tranny
insane axles

now i have some p30 pistons but im thinking on buying some wiseco 13-2-1 for the guys out there who already have some experience what do you think im going to tune it all motor and maybe later on spray 75 to 100 wet shot thanks on any advice guys

 

I have a b20vtec and just a few suggestions. If you are going with aftermarket pistons bore the block to 84.5 so you are starting fresh, what gas will u be running e85, 91-94..on pump gas I wouldnt go higher then 12-5-1 compression. with stock rods you wont be revving the car too high, at least get arp rod bolts so u can take advantage of the stage3 cam and big TB which will be making power really high in the rpm range while your rods are somewhat limiting you to rev the car very high safely.

 

thanks yes i know about the rods and im pushing to buy some but the thing is if im going to buy rods my best bet is just buying a stroker kit for the money right?

 

just order skunk 2 rodss and the pistons also sending the block to get sleeve this weekend

 

Only get a stroker kit if the car is track only and reliability isn't a major concern. If you're running stage 3 cams then I'm assuming this is the case, those are very aggressive and will do a number on the valvetrain. If you're using those cams you should probably use whatever valvetrain combo Skunk recommends (listed on the site), they suggest specific springs due to the pressure/resistance on them.

Also, if you're running a 90mm throttle body please make sure you port match the intake manifold and find a way to run a 90mm intake pipe as well. Freaking hate seeing builds with huge TBs and bottle necks everywhere else lol...

 

skunk2 stage 3 are not terribly large cams, skunk2 pro 3 on the other hand though are a whole different animal. Keep us posted and good luck on the build OP

 

yes i already discard the stroker i order the pistons and rods and yes valves and retainer to match the aggressive cams i got the skunk 2 ultra intake to port match the head and the header is also port to match the head 90 mm tb but with the right spacer i undestang where r u coming from and yes thanks for the advice but im trying to do this the best way this is a expensive build and everything is getting done is a short time guys keep coming with the advice and ideas you can also see my page on facebook @teamhonda585

 

lol really....

Do you have any idea what the specs are?

 

they really arent as great as people tend to assume. all of pro series are smaller than advertised but the AMAX tech really does live up to the hype. if you havent degreed pro series cams you'd be surprised at their duration at the .050 mark.

 

OK, I'm not talking about Pro cams.

You said, and I quote, Skunk2 Tuner3 -
Intake lift - 12.8
Intake duration - 273
Exhaust lift - 11.5
Exhaust duration - 273

They're actually freaking massive cams, but the specs just weren't right, and the ramp angles obviously could be improved. I'm not saying the Pro cams aren't better, but to say the Stage 3 cam isn't large, is flat out incorrect in every way.

 

they r pretty big i run before stage 2 and u can run it with out tune or dregree im pretty confident in this build i keep u guys posted soon videos and pic @teamhonda585 facebook

 

have you degreed them? if so, can you post what they've come out to at the .050 mark? because other people have degreed pro3 and they arent even big as advertised in both lift and duration but still pretty big.

 

What??

I'm not sure you understand what Degreeing a cam is.

How to Degree A Cam - Lunati Power

 

Hey, I have one of this cams, I have the new version and the new specs is very diferent...

I bought this cams two years ago: 8/4/2015

Skunk2 Tuner Stage 3
12.55mm@266°
11.81mm@277°

check the specs in the web-site, Today they are still the same specs:
305-05-0150 - Camshafts & Cam Gears - Engine - Skunk2 Racing

 

Those specs are not taken at 1mm.

Please. I didn't just grab numbers out of thin air. Those are the actual cam specs.

You can chose to believe Skunk, or me, I don't give a ****, but when you ask Skunk for the actual valve opening and closing events at 1mm, you'll find out I'm correct.

 

i will be adding every single spec on this build to make it more interesting averything will be faster afer i get my sleeve block

 

Ok, let's see... I think it's a little misunderstanding, I'm not saying that the Tuner 3, they are not big cam; I just want to say: "That they no longer have those specs".

I want to mention that there is a before and after the camshafts Skunk2... Specifically one before the Ultra-Series and one after...; One friend had the previous version of Tuner 3 and the lift 12,8mm is the same of the specs in intake (Verify with a caliper tool), When Skunk2 released the Ultra versions, the specifications of the existing versions underwent a change, for example: when I got this new version of Tuner 3, I took my time for the verify the lift, (My caliper tool say: 12.55mm in intake)

My intention is not to say that it is not a big cam, I do not know if this new version is not as big as before, because the new ABDC has 1° more: 53°, before had 52°; 53° ABDC catalogs it as a large cam, but less lift; I hope this new version is more debugged and continue to generate the same gains, despite noting "slight changes in the specs" the expectations of gains according to Skunk2 are still the same, I hope the performance they generated in previous versions is the same, because my project so wishes...

12.5:1 2.0 I have not achieved the same results of the past, if I know that I need more time in the Dyno, as I hope to find the correct adjustment with this new version.

Thank you...