Integral Cams Idle

[br289165]

Just put in some Integrals; stage 2 intake , stage 1 exhaust, I have SR camgears, it keeps stalling.Started at 0, then tried retarding intake and advancing exhaust by 1deg each,by advice of the Integral engineer and it still wouldn't idle. I then tried advancing both, then retarding both. No matter what I tried it stalls. Maybe the crank pulley marks and the I and E on the cams weren't absolutely lined up perfectly, although they looked real close, but it's hard to do by eye.Any advice out here?

Originally Posted by niky

Don't all cammed cars idle like crap? Or is it just me?

[TheMAN]

even with the stock cam gears, they don't line up exactly perfect... its slightly off... more pointed downwards than straight across

what you need to figure out is reducing overlap of those cams that way your car WILL idle

[br289165]

Where should I start off now

Originally Posted by TheMAN

even with the stock cam gears, they don't line up exactly perfect... its slightly off... more pointed downwards than straight across

what you need to figure out is reducing overlap of those cams that way your car WILL idle

[Focus]

Don't forget your SR cam gears throw off the timing to the ECU. When you adjust the exhaust cam, you are moving the pickup points in reference to the crank signal.

[niky]

Originally Posted by Focus

Don't forget your SR cam gears throw off the timing to the ECU. When you adjust the exhaust cam, you are moving the pickup points in reference to the crank signal.

Pretty much.

More than that... did you shave down the rail for the adjustment bolts like I talked about in my thread? You need to do that to keep the adjustment bolts from causing pickup confusion from multiple signals.

-

My car doesn't idle at all with my piggyback turned off. But that's partially because my 02s are unplugged. With the O2s plugged and the maps zeroed, my car idles really lumpily, but it idles... it's just flowing too much air at this point (didn't I say the stage 2s were huge? ), and the MAF readings are erratic due to the huge overlap... still, in untuned state, I was able to use the cams, gaining about 10 hp up top but losing a lot of power down low.

Take care of the pickup interference first. Shave down the grooves for the adjustment bolts about 3-5mm and it should work.

-

Too bad you don't have a before and after dyno for these cams... I'd really like to know how a mixed Stage 2 / Stage 1 set does in terms of both peak and low-end power, because I'm considering pulling back a step on the exhaust side to get some low end back.

[br289165]

i pulled the cover, eyeballed the lobes for overlap and adjusted accordingly, so we'll see how it goes now. I adjusted the throttle stop for a higher idle also.

Originally Posted by niky

Pretty much.

More than that... did you shave down the rail for the adjustment bolts like I talked about in my thread? You need to do that to keep the adjustment bolts from causing pickup confusion from multiple signals.

-

My car doesn't idle at all with my piggyback turned off. But that's partially because my 02s are unplugged. With the O2s plugged and the maps zeroed, my car idles really lumpily, but it idles... it's just flowing too much air at this point (didn't I say the stage 2s were huge? ), and the MAF readings are erratic due to the huge overlap... still, in untuned state, I was able to use the cams, gaining about 10 hp up top but losing a lot of power down low.

Take care of the pickup interference first. Shave down the grooves for the adjustment bolts about 3-5mm and it should work.

-

Too bad you don't have a before and after dyno for these cams... I'd really like to know how a mixed Stage 2 / Stage 1 set does in terms of both peak and low-end power, because I'm considering pulling back a step on the exhaust side to get some low end back.

[LordWorm]

I've moved these posts out from CulRidrs thread at his request.

[br289165]

Damn no dyno, tried to get Detroit Speed to quote me some dyno time, a block from my house, but the snobs only do big power Mustangs/Vette's and when i emailed him back that I have a Mazda 4 banger he wouldn't reply. The car pulls all the way up to 7,000 now.

Originally Posted by niky

Pretty much.

More than that... did you shave down the rail for the adjustment bolts like I talked about in my thread? You need to do that to keep the adjustment bolts from causing pickup confusion from multiple signals.

-

My car doesn't idle at all with my piggyback turned off. But that's partially because my 02s are unplugged. With the O2s plugged and the maps zeroed, my car idles really lumpily, but it idles... it's just flowing too much air at this point (didn't I say the stage 2s were huge? ), and the MAF readings are erratic due to the huge overlap... still, in untuned state, I was able to use the cams, gaining about 10 hp up top but losing a lot of power down low.

Take care of the pickup interference first. Shave down the grooves for the adjustment bolts about 3-5mm and it should work.

-

Too bad you don't have a before and after dyno for these cams... I'd really like to know how a mixed Stage 2 / Stage 1 set does in terms of both peak and low-end power, because I'm considering pulling back a step on the exhaust side to get some low end back.

[br289165]

I'm on the MP3 ECU, when I clockwised the throttle stop screw a bit, the car idles about 500-700 . Didn't find any posts about adjusting this screw to keep an idle, what do you think about it?

Originally Posted by niky

Pretty much.

More than that... did you shave down the rail for the adjustment bolts like I talked about in my thread? You need to do that to keep the adjustment bolts from causing pickup confusion from multiple signals.

-

My car doesn't idle at all with my piggyback turned off. But that's partially because my 02s are unplugged. With the O2s plugged and the maps zeroed, my car idles really lumpily, but it idles... it's just flowing too much air at this point (didn't I say the stage 2s were huge? ), and the MAF readings are erratic due to the huge overlap... still, in untuned state, I was able to use the cams, gaining about 10 hp up top but losing a lot of power down low.

Take care of the pickup interference first. Shave down the grooves for the adjustment bolts about 3-5mm and it should work.

-

Too bad you don't have a before and after dyno for these cams... I'd really like to know how a mixed Stage 2 / Stage 1 set does in terms of both peak and low-end power, because I'm considering pulling back a step on the exhaust side to get some low end back.

[niky]

I don't like using the idle screw. After a few hours, the ECU adjusts the idle back. It's best to double check all your vacuum lines for leaks, then go back to tweaking the gears to get it to stabilize.

I really don't know how far retarded/advanced my intake and exhaust are... it was done by hand on the dyno.... but it really helped.

[br289165]

You know your shit, it's stalling again. I noticed a small hole in the hose going from the driver's side of the valve cover to my CAI, you think that might cause the idle problem?

Originally Posted by niky

I don't like using the idle screw. After a few hours, the ECU adjusts the idle back. It's best to double check all your vacuum lines for leaks, then go back to tweaking the gears to get it to stabilize.

I really don't know how far retarded/advanced my intake and exhaust are... it was done by hand on the dyno.... but it really helped.

[niky]

Originally Posted by br289165

You know your shit, it's stalling again. I noticed a small hole in the hose going from the driver's side of the valve cover to my CAI, you think that might cause the idle problem?

That's likely 100% it. It's letting in atmospheric air after the MAF. Patch it up and things should clear right up. Remember to reset your ECU by unplugging the battery and try (if it's possible to find the stock position) to reset your idle screw, too. If you can't, just run it for a while until the idle settles down.

[br289165]

Thanks man. It was throwin p0300 codes (misfire #3#4and another p0660)so I went back to stock exhaust camgear, advanced it a tiny and retarded the intake about 3 degrees, it's idling now and pullin good all the way to 7000, bummed I can't use both SR's without machining those slots though.

Originally Posted by niky

That's likely 100% it. It's letting in atmospheric air after the MAF. Patch it up and things should clear right up. Remember to reset your ECU by unplugging the battery and try (if it's possible to find the stock position) to reset your idle screw, too. If you can't, just run it for a while until the idle settles down.

[niky]

Congrats on getting it running, at least.

Be sure to post up numbers when you get the camgears fixed and the cams dialled in.

[br289165]

What u think bout puttin a washer on the cam sensor mount to space it out a bit?

Originally Posted by niky

Congrats on getting it running, at least.

Be sure to post up numbers when you get the camgears fixed and the cams dialled in.