performance cam

[Rootie524]

it's a custom grind from comp. stock cps. and it's installed correctly in terms of good eyeing. lol.

[geoffinbc]

What core did they use? The CPS changed through the years

[Rootie524]

how do i find that information out? the spec sheet has part number and serial number and like grind number and stuff.

[bszopi]

Trigger type won't matter.

[SappySE107]

x2 it wont matter on the CPS ring.

[geoffinbc]

I don't think anyone asked but is there a check engine light?

[Rootie524]

yep. only one though and i believe it's due to the ignition timing. it's the random/multiple cyl misfire.

[geoffinbc]

Well you better check and let us know. A misfire could be a cause for bad idle!

[Rootie524]

well it idles fine. what im saying is when you first start the car. it idles high. like above 1k for a bit. if i go to shift out of park while its up there it usually stalls. but if i wait for it to idle down..and it does idle down, im usually fine. it idles around 600 like it should.

[pocket-rocket]

it idles around 600 like it should.

In gear or out of gear? I thought auto's idled around 800-900, but around 6-700 in gear. 600 to me sounds too low for out of gear.

[Rootie524]

well around 600. point being the idle is fine both in and out of gear. its just when shifting from park to a gear while its up above 1k usually results in stalling.

[Rootie524]

im about to buy a new torque converter. first question..does everyone agree this is a good idea. 2nd question what should i get it for.

i have a 2002 malibu with the 4t40e and 3100. i ripped a 3400 out of a 2002 impala which should have a 4t45e. im putting the 3400 in the malibu and keeping the 4t40e. which torque converter should i use. the one for the 4t40 or the 4t45?

and idk if its even a 3400. it should be. the intake was stamped 3400. but on the flywheel side i believe it is..or the cam side..well either side. it has stamped in the steel 3.4 AND 3.1. this is on both blocks. its not like one says 3.1 and the other says 3.4. both my engines are stamped 3.1 and 3.4. so how do i know.

[bszopi]

What big letter is on the side of the block? Should be visibile below the TB on the back side (see below)



The C shown above is for the 3500. I'd have to search to be 100%, but pretty sure the 3400 has an A and the 3100 has a B.

[Rootie524]

ok it looks like it is a 3400. so which TC should i use if its a 3400 bolting onto a 4t40e?

[bszopi]

Call up a TC manufacturer, give them all your information, and they should be able to advise you on the best stall to get. You don't necessarily have to buy one from them, but it will give you a range you need to look for in a stock TC.