I got a set of Dart Iron eagles going on here pretty soon and somebody mentioned something about exhaust crossovers or something in the heads. WTF is that? is this an EGR thing? I have no idea if the Darts have them or even what the crossovers do. Help please Can i modify my emmisions system to bypass the crossovers or do i not need to even worry about it? Thanks for the help everyone. ------------------ 1988 IROC-Z L98 License Plate: STG KLR 1 Engine Mods: Edlebrock TES Headers, Hypertech Chip, Flowmaster Muffler, Intake Airfoil, Removed MAF Screens, MSD-6A, MSD Blaster 2 GM Coil, bored .030 over, Other minor mods Suspension Mods: Lakewood Traction Action Lift Bars, Hal Rear Shocks Trans Mods: 2,500 stall converter, Redline clutches,Heavy Duty Steels, Trans-Go reprograming kit , Heavy Duty 2-4 band, Corvette Servo, B&M Mega Shifter w/ Carbon Fiber Handle (looks sweet in a black car!) ET: 13.833@99.30 "If you can put it on your car, its fair" Quote By Guido Foundering Member of the Illinois Overkill Crew (IOC) www.mfba.org [This message has been edited by 88blkiroc (edited May 22, 2001).]

ttt

anyone???

Yes, it is an EGR related item. It is also used to heat the manifold on older cars. Dart Iron Eagles DO NOT have provisions for this.
You can bypass it. Vortec heads do not have crossovers either, they use an externally plumbed system to route the EGR gases back to the manifold. You would need to use the same kind of setup if you are planning on using the Darts.

I believe the v6's use a similar setup to what 93ND500 is describing.

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89 IROC-Z 350 TPI

-Flowmaster Catback
-Performance Resource Chip
-700R4 (Rebuilt) Too much done to actually list
-K&N Airfilters
-Ported Plenum
-2.77 Gears (not much to brag about but eh, its there)
-MSD 8.5 mm plug wires
-Gutted cat
-!AIR
-Gutted Air Boxes

you silly silly man. why dont you ever ask me?

just take off your emissions crap and block off the egr and put a intake gasket with the little metal thingie in the middle to block off the EGR also.

problem solved.

my EGR has been disable for a while now and i hardly ever get a SES light, just when the computer tries to open the valve is when it comes on, then when it wants it closed it shuts off. haven't had the light in about a year and when i did it was only for like 10 minutes

Jimmy, you are my thirdgen god

Emissions , whats that

The un-smog third gen club

I you take all that sh!t off Kyle call me , I have the right belt #'s you'll need to run . I say #'s cuz with no pump , you can bypass the power steering at the track ...gotta love 2 tenths for the cost of a belt

No power steering...damn id need skinnies, ever try to turn P245's without power steering??? Ill give ya a call when i do all this crap man. Me and jimmy were talking about taking of the AIR pump and the A/C. We aare trying to figure out how to gte rid of all the hoses and crap. every 3rd gen i have seen without the Air pump and AC still have that octopus above the valve cover. I dont want that crap hanging there. U know how to get rid of that crap?? Thanks man.

Wussy boy , its not that hard , your just getting around the pits like that .

That thingy above the valve cover is not emissions stuff , it has to do with the heater , Coolant runs thru those hoses and that valve thing . You could omit the valve and re-route the hoses . Without the valve coolant would costantly flow thru the heater core , I would assume . I will be doing this to mine while the car is down , among many other things , can you say re-wire time . Time to clean house

When your ready to desmog yourself , just call . I could come up and help if it were on a Sat. or something , just have alot a Mountain Dew . L8


[This message has been edited by 90 Z28SS (edited May 25, 2001).]

Cool man. Hey whats going on with your car now?? U selling or what?