cam swap results

[nomaboy]

got the rest of the engine put together today(after a 100 dollar timing chain cover) and started it up. well ****. it runs really rough. and the check engine light is blinking. i am thinking that since i disconnected my balance shaft it is setting off the knock sensor. i will check the code tomorrow but any thoughts would be apreciated. i may have to take it back apart to put the balance shaft gear back on. :(

[Maximus]

There have been others who have deleted the balance shaft with no SES.So I don't think that's your problem.

[Sparky2263]

The ck. engine light is blinking because it sees a dead miss. Start by killing cyls. and find out which cylinder/cylinders are dead.

ECM doesn't have a clue if the balance shaft is turning.

[nomaboy]

well you guys are right. i reconnected the balance shaft just to be safe. i figured that would totaly eliminate that. it still runs rough. sparky i think your right it is a miss cause it lopes when you rev it up and if you hold it up the ses light goes off and it runs fairly smooth. the thing is that i replaced all the spark plugs when i did this and put new wires on it. i made sure the poppet nozzels were clean before i put the intake back on. what else would cause a miss?
thanks.

BTW- i put the balance shaft on before i read your responses so please don't think that i didn't listen to your advise.

[Joe]

You might have cracked the porceline on the plug, Did you check the gap of each plug???. Also check the firing order.
Nick

[nomaboy]

i set the gap to .050 (should be .060 but before i did the swap it missed like this). i did check the firing order and thats fine. i very well may have cracked a plug. with jba headers that happens easily. i will check for that tomorrow.

[Joe]

you can also do what we in the automotive industry call a wet test. While the truck is running , take a water bottle filled with water and spray the wire, and the cap with enough water to where is runnung off of everything. Then take one hand and ground yourself out to the truck,(put hand on top of alternater away from the pulley.) And take the back side of your hand and run it over the wires and the cap, if you feel a slight zap that there is a sprk problem. Trust me the zap wont hurt. If you feel nothing that one by one pull a plug wire and listen for a change in the tone of the engine, when you pull a wire that doesnt change the tone thatn ist probly the plug.
Nick

[nomaboy]

I have heard of that test before. i will do that and see where i get. I just want it to be running right. when it runs like crap i feel sick to my stomach and cant eat anything till i get it fixed. i wouldn't think that my truck not running would have anything to do with my apitite would ya?

[Joe]

I know how you feel i am the same way, And my truck on has 13000 mjiles on it lol.
Nick

[nomaboy]

that is low mileage. mine has 45XXX but i still owe 12 G on it. :eek:

[bvr775]

12g !!!!! mines payed for

[nomaboy]

i am a poor dude. i can't help it. i am also addicted to speed so thats why i am poor.

[ZR1 S10]

Is that cam computer friendly?

Shoulda went with a comp cam ;)

[LilYellowZQ8]

I know how you feel i am the same way, And my truck on has 13000 mjiles on it lol.
Nick

Do you drive that thing????? My 03 had 38 miles when I bought it in September 2003 and now has 42,xxx miles on it.

[Joe]

Do you drive that thing????? My 03 had 38 miles when I bought it in September 2003 and now has 42,xxx miles on it. I have had it for a two years, bought it with 5,484, and now it just shown 13,xxx. lol I dont drive it in the winter. So that helps. I picked it up for $13,000 at the dealer, Zq8 and all. I got a hell of a deal that I couldnt pass up.
The funny thing is that I went to the dealer with my 1993 s10 that was slammed to the ground to show my g/f what a Zq8 was and 2 days later I am signing papers.lol
Nick

[nomaboy]

:jump2refe :bouncy_12 :thewave: whooohoooo i got it. it had nothing to do with internals or cam. it was the NEW spark plug on the number 6 cyl. it was cracked on the inside. i couldn't even see it. i pulled the plug and had to wiggle the porciline and i could hear it. i can finally eat now

[Sparky2263]

Congrats!

[nomaboy]

After driving it around a bit here are the gains i noticed:
it is definatly more responsive
it pulls a lot harder through first and second from off the line to 5500 were it shifts
it still is a bit of a dog once you hit 3rd goin about 80 and up (i suspect the intake manifold is to blame for this)
over all it is a good gain. if i had to do it again i probably wouldve used a cam with a little longer duration but either way i like it. it was too much of a pain to do it again for a long time.
this cam did lope my idle a little bit which sounds bad-ass with a open exhaust and flowmaster 40S.

[Joe]

congrats man glad I could help.
Nick

[bvr775]

I wouldn't nessiarly blame the intake for the lag in 3rd. it's more possible that it your tranny or gearing.
it's time to get a laptop for programing. the handhelds or no good on your year and their is no such thing as a computor freindly cam. Crane and crower or the best for your application so your ok.plus that cam should pass e-testing.the obdII epuiped vehicles are PITA to mod if you dont have the laptop.the easyest way to explain this with getting to involved is part of the comp may be locked so it'll try to revert to factory tune every few thousand miles. you'll need to send your comp to have it cliped and jumpered or have a writteable chip put in.I don't do the internet thing where you send your comp off to someone and hope they don't send it back fryed, i get mine don't by the local speed shop so you may want to ask around about this.

I'm pushing 100K on my 03, my last everyday driver had over 600K on the frame(2nd engine)

i'm geting a tacoma 4runner in september and retireing the 03 to the backyard shop for the engine swap

[Sparky2263]

I'm wondering if the above 80 power los is due to the converter locking up at full throttle. Ran into that on my 92. Just happened to notice it one day data-logging my 1/4 mile passes. Come to find out, GM designed a full throttle lock-up at 85 mph into the chip. When it locked up, it slowed down. 'course, I could just unplug the converter, you can't.

Other thought is, fuel demand is highest under those conditions. Wonder if it's leaning out slightly?

[Joe]

Could be lackin fuel, what lift did you get?? 480-or 500??

[bvr775]

I'm thincking it's torque managment messing him up. it's design is to decrease fuel and retard the timming if it feels that you may be damageing the tranny with too much load (if it slips any it kicks in). It's not real hard to overcome, but price is the issue here. You can't delet it from the programe all together without unlocking the comp and even then you have to reprogram several aspects of the computor. The outher option is to build up the tranny with more clutches, tighter servos, and heavyduty bands. this is what I had done.
I still retain the TM because it really is a good idea(just way ooverdone by GM), but I don't have any slippage between 2/3 like the r4 and 4l trannys are famous for.

[lamerboy]

torque management (as far as the transmission is concerned) only occurs during shifts.

-15 degrees stock, dependent on rpm.

http://www.jhbi.com/s10rz350/tunercat/tables/TM.JPG

[bvr775]

with GMs system if you have a slippage or flare between gear what is it's purpose them?
It retards spark and reduses fuel(it's nicknamed the abuse control)
this means if have a typical stock 4l60 your going to slip between 1/2 drum and 3/od drum(flare)

how do you get rid of this problem? in the r4 it was a boost valve and shiftkit. the 4ls don't like shift kits. you can use servos, heavy duty bands and a similar boost valve to get rid of the flare problem and it keeps the tm system out of your hair. I belive kernbell superchargers and diablo offers a kit to remove GMs TM system all together, but last I check it just for the V8.

I'm building a an engine (4.6 aluminum vortec.. hopeing for 400fwhp n/a) to replase my 4.3 so I did go the extra mile with mine(9pack,plantarys, shell, and output shaft).

[lamerboy]

It wont slip when timing isnt being take out between shifts. You can also adjust for how long it retards timing between the shifts but if TM is set to 0 that the shift time wont matter anymore.

[nomaboy]

it shifts into 4th or TC locks up at 85 if i leave it in drive. if i shift manually then nothing happens till i shift into drive. at full throttle it hits 3rd pretty hard. if i had my factory tires it would bark them. my trans loved that shift kit. especially with the programmer to increase line pressure. i have an A/F guage and it stays on the rich side all the way through the rpm band.

oh yea, cam has .459 lift when used with the 1.6 rockers and 260/276 Adv. duration. 204/214 duration at .050 of valve lift.

[ZR1 S10]

Glad to here everythings working :baseball_

[bvr775]

you really a data aqusition tool to see what your doing. Like i said a laptop or pda with scantool or something like that software will work. This dosen't mean go out and buy a brand new one. Hit the pawnshops it dosn't have to be anything super special it just has to run the software and have a port to hook up an data cable.
get with maximus on the particulars.