Thread: With regards to Turbo VE's

SR20VET: Lift 11.3 & 11.0, Duration 248*, overlap 13*

B18C5 type R (jdm) 11.5 & 10.5, 240 & 235, overlap 25*

Guys are making over 700whp on the type r cams. The VET cams are very underrated

The VET cams have less overlap and lift, but more duration and more lift on the exhaust. These cams should respond very well to good flow. What do you guys think?

you cant compare cams across motors

I really like how it feels once VVL kicks in, I'm using stock cams, tubular manifold and a .63 turbo, with open downpipe, it is just out of control, I do agree that it needs a higher rev limiter, I have a 7800rpm cut and it is still pulling a lot up there.

In most cases no, but in this case I think it is a very reasonable comparison. Both motors flow nearly the same, but the VE has bigger valves and better flow. I think it is a perfect comparison and should show how the engine will react with the right setup.

The port design and head design in general is almost identical, and show a lot of the same features.

You are trying to compare cam specs that are not measured the same. Those honda cam measurements are at 1mm lift for valve events. the Nissan Cam duration measurements are not at 1mm lift. I think they are at .016" lift or somewhere around there. If you were to actually install and degree the cams you would see that the Honda Type R cams are much larger than the VET cams. the sr16 and N1's are similar though. Actually the N1 exhaust is larger than any of the Type R cams in lift and duration....


The sr16ve cams and N1 cams do work well with larger turbo setups. 2 people have run sr16ve cams in boost setups both making over 500whp at 9000+ rpm on low boost.

the best way to find which cams work the best is on the dyno. Honestly I do not like the .63 turbine housing for higher power motors. Its too restrictive unless you have a larger turbine wheel like a 35R or a stg 5 T3 wheel atleast.

run the motor with the cam gears straight up on the dyno and adjust accordingly as you go. most sr20's will make more power by advancing the exhaust cam to yes eliminate valve over lap and also allow the exhaust gasses to escape earlier so there is less positive pressure in the cylinder when the intake valve opens. adjusting the intake cam will shift the power band as well but usually it depends a lot on the size of turbo being ran....

^^^ agreed! well with 95% of what is said here

Coheed..im curious did you get your setup sorted out properly?
reason i ask is i have a very similar setup in my 510..but i am going to be using p11 cams with a hks 3037 pro s with .78 twin scroll turbine housing & gtir quad throttles..my goal also is to see 500+ hp but have killer midrange & response.

if you ever wanna test a # again on the dyno with the cam gears try +1/-2 for mid range.. evo 9 users extract power with better cams why wouldnt the vvl benefit.. id personally stick to sr16's.

Mivec allows them to tune the overlap also remember...

I am changing to a tubular manifold next month. So I will likely go with the sr16 cams if the standard 20ve cams don't give me the power I want. I really want to make the most power I can without upgrading valve springs. I'm just a little weary of using springs, I'd rather keep them stock and see where I can go.