Vtec.... - Tuner-Junction

Morpheus1684 · #1 (**permalink**) July 12th, 2006, 03:21 PM

Hey...is there any way to get vtec to work without the p28 ecu? i'm putting a d16 head on my d15 block...and keeping the stock ecu for a while... thanks

macbasq · #2 (**permalink**) July 12th, 2006, 03:48 PM

yes, RPM activated switches

http://www.msdignition.com/rpm_7.htm

Morpheus1684 · #3 (**permalink**) July 12th, 2006, 05:10 PM

couldn't i just hook it up to like a manual switch or something?...

macbasq · #4 (**permalink**) July 13th, 2006, 12:40 AM

would you turn it on and off manually at the proper RPM? or just leave it on all the time? no point in just leaving it on all the time, might as well wait until you have a P28 before doing the mini-me.

Morpheus1684 · #5 (**permalink**) July 13th, 2006, 12:54 AM

haha it's cool, i found a rpm switch for 25$! so i'm gunna do it that way. Thanks!

macbasq · #6 (**permalink**) July 13th, 2006, 12:56 AM

excellent! is it a window switch or a regular one?

njn63 · #7 (**permalink**) July 13th, 2006, 01:33 PM

eh, the rpm switch method is kinda ghetto.

You can chip a obd0 ecu for vtec using turboedit i believe. I was looking at that route for a while but found a p28 and liked that idea better so went with that.

Morpheus1684 · #8 (**permalink**) July 13th, 2006, 03:20 PM

it's just a regular rpm switch...i haven't gotten it yet...but i AM looking at a window switch...*itches head* hmm.. i've found a window switch for 55$..

macbasq · #9 (**permalink**) July 14th, 2006, 12:17 AM

Quote:

Originally Posted by Morpheus1684

it's just a regular rpm switch...i haven't gotten it yet...but i AM looking at a window switch...*itches head* hmm.. i've found a window switch for 55$..

if you go the switch route, then don't bother with a window switch. that's good for deactivating nitrous before hitting redline. no real point for it with just VTEC. i like the chip idea, that might be a good route to go. but then again, if the switch doesn't work, you're not up shit's creek and you can still drive.

there is always the PW0 or PS9 ECU. That will have a better fuel map than your current ECU. (What year are we talking about, btw?)

Morpheus1684 · #10 (**permalink**) July 14th, 2006, 12:47 AM

i'm totally rolling a 1994 civic dx...i think i have a p03 ecu? i know i'm rockin' the obd1 tho...(wish it was obd2 tho :P ) those ecu's sound like older gen ecus...? i totally have crome and uberdata, and i've got IMO AWESOME maps...just no chip burner..

macbasq · #11 (**permalink**) July 14th, 2006, 12:53 AM

yah, those were OBD0 ECUs, which i just figured you had. (i'm a 4th/2nd gen civic/crx person

) one is an early B16 ecu, and the other is for the 88-91 civic LX. you've got a P06. too bad you don't have a chip burner, that could help you out a ton!

Morpheus1684 · #12 (**permalink**) July 14th, 2006, 03:46 PM

hell yes! personally i LOVE the 4th gen hatch's, i love the interior design and how light they are...and i've ALWAYS wanted a crx...

:P i've been working with uberdata for like 2 years...i just found crome and i have to admit i like it a little better. Anyway, i think i'll just get the rpm switch and set it up that way...i'm thinking to activate it around 4000rpm.

domscivic · #13 (**permalink**) August 14th, 2006, 10:10 AM

4000 is really low..

Slipjack · #14 (**permalink**) August 19th, 2006, 04:28 AM

Quote:

Originally Posted by domscivic

4000 is really low..

Yeah. 5000 to 5500 is key. It's going to dog like hell from 4000 to 5000 IMO.

speedjunky01 · #15 (**permalink**) August 19th, 2006, 09:59 PM

vtec isnt always activated at the same rpm. the ecu looks at speed, all of the engine temps. when the engine is cold vtec shouldnt be coming on at all.

just save up another 75 bucks and buy a p28 and chip it so you have the stock map and option of tuning.

junkjards are awesome to pick up ECU's especialy HUGE ones. ive stolen an nissan ecu for a friend

njn63 · #16 (**permalink**) August 20th, 2006, 03:56 AM

after doing the obd1 conversion, i can tell you for sure not to waste your time with a rpm switch.

The only other method i'd even consider is using TurboEdit to run a p28 style map on a obd0 car but i have no idea where to even start on how to do that. I just know it's possible.