VX racecar - VN-VP ECU on Ecotec

[Holden202T]

I ran my ecotec in a torana on a vn computer and loom.... thread here - http://pcmhacking.net/forums/viewtopic.php?f=16&t=144

[kahlakid]

There is a thread on the JC forum ecotec conversion into VN/VP. Fairly much covers everything.

oh wow, good find i cant believe i didnt find that earlier! Silly mistake by me, thanks mate!

[kahlakid]

I'll put in my bit on the cam selection. On the dyno sim I found for at least Buick v6 does nothing above 470 lift. Having the right amount of duration, lobe separation and cam timing is most of it is at it seems.

So, im back!

ive found and my wiring is no problem. bought the ATFY computer(5500 redline)

Now for camshaft selection!

ive narrowed it to 3

1.

MODEL TYPE VS-VT V/6 COMMODORE 3800
---------------------------CROW COMPUTER CARD----------------------------
| PART NUMBER 853757RH Date 25-FEB-16 |
| Cam type: Hydraulic Roller type Profile |
| ----------------------------------------------------------------------|
| Advance Ground on Cam: 2 Lobe separation: 111 |
| .050 VALVE TIMING |
| Inlet opens: -2 BTDC Closes: 36 ABDC .050 Duration: 214 |
| Exhaust Opens: 42 BBDC Closes: -4 ATDC .050 Duration: 218 |
| ADVERTISED VALVE TIMING |
| Inlet opens: 22 BTDC Closes: 60 ABDC ADV Duration: 261 |
| Exhaust Opens: 64 BBDC Closes: 18 ATDC ADV Duration: 263 |
| Inlet lobe lift at TDC on the over lap:.048 |
| ----------------------------------------------------------------------|
| Valve lift Inlet: .4944 Inlet Rocker Ratio: 1.60 |
| Valve lift Exhaust: .5008 Exhaust Rocker Ratio: 1.60 |

and the last two cams in this list.

Camtech.jpg (153.97 KiB) Viewed 3027 times

any feedback is much appreciated


EDIT: i cant use roller rockers FYI

[Holden202T]

for a racecar i'd go the CT2853 49928-110.

[kahlakid]

for a racecar i'd go the CT2853 49928-110.

you think? im just unsure if it will be too big.
I figgured i may as well give it a shot asking here as you guys were so helpful with my previous questions. not even the camshaft manufactures give much insight into it. I guess because they dont have to.
I also imagine it will be pretty cranky with LSA 110
Either way, there will be skids

[Holden202T]

yeah well my opinion is if its not a streeter then you can really go as big a cam as you like, but obviously you rev a V6 too hard and you need to start upgrading lots of other stuff!

im more looking at the RPM range for those and i know in a race car you don't really care about anything below 3000-3500rpm, and want it all in the mid to top end!