I am trying to find anything i can on 1993 2.2 cavalier mods for oval track, we sent the head out and had it milled and did a 4 angle valve job on it.
is there any way to increase rpm above stock which is 6100?
the ecm is not programmable i am told, but can i add a 96 and rewire it with a service manual wiring diagram to a ecm with a removable chip?
is there anything i can do to induction as far as injectors or throttle body on a basically stock engine?
I have a reader so could i experament with ox sensor?
thanks for any answers as i am a newbee on this but a old guy on oval track racing for 38 years
i am helping my nephew on his cav oval track car to try and beat the neons. thank you.
93 should be able to be burned, 96 is the worst year possible for modifying. Check around in the Tuning forum here.
I have to ask though...
4-way valve job? What are the angles for a 4-way?
fortune cookie say: better a delay than a disaster
Greetings from a fellow bus mechanic.
The 93 ecm is not "cracked." No definition files, no tuning software. The ecm used with the manual trans is a flash based type which doesn't use an easily replaced chip. 94 ECM might work, but the 95 ecm is probably the one to get since there are definition files available and the power and torque curves are similar. Other ecm's which will work but will require a fair amount of reprogramming along with some substantial re-wiring include the 1227730 and 1227749.
The 93 engine uses a flat lifter cam. Have you considered switching to a 94-97 block and using factory style roller lifters?
You wanna beat Neons? Well... I happen to know of a pair of these cars dominating a track in Ohio. There's a couple of pro-chassis, $7000+ engine vehicles which couldn't keep up with those LN2's. Last report I heard was 235 hp N/A at the wheels on one car, and they're pushing for more. Current mods are to support engine rpm in excess of 7k "all day long."
-->Slow
hey pops, i got on here too for some answers. I got some for ya from another place as well.
93 doesn't have a removable chip and no one seems to know who or how i get this ecm programmed
would like to raise rpm 6100 now? to 65 -6800 4 angle valve job 15 30 46 60 on a 45 seat.
what are the shark fins in the port should i just polish the ports or remove the fins all together?
can i adapt the use of 1.6 roller rockers or is there a easy way to adapt?
somewhere i read to use 98 pistons in a older block to raise compression
what are the specs or where can i find them 8 to 1- 9 to 1? milled head
is there any other cam available that will work but not be a deficit with the ecm parameters i now have?
i know i am asking allot but its the only way i can find out by asking you experts thank you Rick
GM says leave the fins. 1.6 rollers will fit without too much work. Others are more familiar with the threads that tell ya how. 93 cam is the largest factory flat tappet cam I'm aware of. Search for "ohv build guide" or something like that... GM article from late 80's or early '90s on building 2.0 OHV engine. Look for "OHV rocker" thread, "Peer pressure and OHV", "1.7 rockers", and JuicedZ4's threads on having a custom flat tappet cam and solid lifters made among others. There are plenty more good threads, I just can't think of titles right now. Madjack, OHV Notec, HotRodV6, Adler, Event are all contributors whose posts may contain very good technical content.
94 ecm is almost a straight plug in with maybe 1 or 2 wires to add. 95 may be similar... if I have time I'll look at wiring diagrams tonight at home. 94 and 95 computers have an extra advantage because they use a knock sensor. The 93 programming uses very mild spark timing. You can also use the computer and chip from a 94 S10 with a 2.2 as that one is cracked. I have software for programming the 95 and I have copuies of manual and automatic transmission calibrations to start with. For mild increases in fuel fuel you can use an adjustable pressure regulator from an LT1. I believe there's a thread by occasional poster Ray Soos where it's discussed.
If you like to read, there is plenty of good info around.
Gotta go replace some brake pads.
-->Slow
Hi everybody, I am also working on my 1992 2.2 cavy (you can see my profile) but have some issues with the 1.6 comp cam roller, they don't fit the guideplates so I have to machine them. The second thing is that they seem to make some pushrod deflection due to some differences in distances with the oem one, or this is normal and part of the design. Thanks a lot for your help, need it to finish my valvetrain build.
Sidney
