Thread: Thoughts on potential ve+t setup

i've got no issue with going back to 20VE cams, in fact selling the N1's would likely pay for the turbo/manifold

id atleast try them first, lol you try 20ve ill try n1's

tis true thou sell fujis, sell n1's then thats 1K worth of somthing atleast.

i know of someone making 300rwkw's on a 2.2 with a 20v head at 1 bar on a 3076 running t3 .63, so you should make your goal very easy



if you are planing to go turbo go +1in +2 ex the ve ex valves are only 6mm so going +1mm on the ex brings it back to standard det specs

i was too cheap on my build and just kept the standard valves, however i did do a crap load of porting on the ex and left the intake alone. 260 cfm of flow is plenty for turbo.



the problem imo is not just the overlap, but the lack of overlap on the low lobes, which means you cant tune it out with cam gears.

a nice amount of overlap for high lobes imo would be 30degs, however even the 20ve cams have 48deg and 0 overlap on the low lobes, so you cant just retard the intake and advance the ex.

now if i am not mistaken the n1 intake opens 40deg btdc and the ex closes 34 atdc giving 74deg of overlap although i have read the n1s have 78deg of overlap so maybe its 38deg. either way its a lot of overlap, and to be running those cams you are going to want very little restriction on the ex side. so imo do not run these cams with a gtir t28....simple, but if you have a gt42 in the shed and a long runner high flowing manifold...well you can maybe run them

also n1's low overlap is 0 makinbg it difficult to tune out the overlap with gears. Therefore these cams are worth more to sell to someone with an na, just put up a post swap for standard 20ve's plus cash your way, the extracash will be worth it

does anyone have the 20v cam specs? ie when the open etc? i would like to know if you can tune out the overlap

i still have my original 20ve cams so no big deal to swap back.
If they will still make good power to ~8000rpm then be very happy.
total goal maybe around the 300whp mark @ 8-10psi?

Coheed has already been there and done that when it comes to VE camp overlap information.

http://www.sr20-forum.com/vvl/3658-regards-turbo-ves-3.html#post54836

The one missing piece is that combination I talked about. I guess I could always come up with it myself if I spent enough time looking at the cam specs.

Need to get a custom grind done up with factory det cam low lobe then a tomei det pro cam high lobe with arpropriate overlap would provide a very meaty power range.

should be enough vet guys to warrant grob buy it in 6-12months one would think

coheed's setup is pretty informative, but a much larger turbo (with built motor from memory) so not hugely applicable here i wouldnt think

[QUOTE


if you are planing to go turbo go +1in +2 ex the ve ex valves are only 6mm so going +1mm on the ex brings it back to standard det specs

[/QUOTE]

yeah i figured why not do both the intake and exhaust porting, it defintly wont hurt it, more the better. Not gonna go extreem with it just enought to pick up some decent flow and especially through the exhaust port. I think it will have a nice advantage over a stock head even though they flow quite well. But i figure since i will have it off ill go ahead and do it. Yeah and good advice on the cam degree, i have been looking around at some setups and noticed some people that are running the stock 20ve cams are using those specs. Definetly note taken. The stock cams have plenty of lift to flow well with turbo its just that overlap is what kills it.

You will need a big turbo if you want to use the stock cams. I will soon be on the dyno to show the diff in power from the VET cams and the 20ve cams on a twin scroll manifold. I am betting the VET cams will still provide a more useable powerband.

interested to see how that goes