I know that you can only swap engines that were available in the year of the car. What about the intake? I don't see why you would have a problem, but you would fail the visual. Would it be fine assuming it passes the actual test?

 

Depends on the test. If it's a sniffer test, then it shouldn't matter, as long as it passes. Also, keep in mind the EGR won't work with the distributor.

 

Crap. We have the dyno test here.. how much room is there between the distributor and the EGR passage. Would there be enought room to bolt an adaptor and mount the EGR on the side?

 

This is the back with the distributor installed.


This shows the relation between the EGR location on the left, the input pipe on the right, and the distributor hole on the bottom.


It sure doesn't look to feasible...

 

Well that sucks!!! RCR, how will you go about passing emissions? Let me guess.. you live in a state where they don't have them?

I talked to TPIS. They claim that they have had 500-600 HP cars pass. I find that very hard to believe. Of course they also want $800 for the intake and another $200 for the fuel rails. The price they sell their parts for is criminal!!!

 

It's not about ultimate HP that makes a car pass or fail an emissions test. Clever tuning is what makes the difference. The more valve overlap there is really is an issue. Sticking with all exempt parts will help but get too far out on a limb and you will be in trouble.

 

I realize that the actual power doesn't dictate if you will pass or not. Most of the time, if you are making a ton of power like that you have thrown out the necessary emissions equipment though. This just means i have to be that much better in tuning since there will be no EGR.

 

the no egr will fail the NOX (oxides of nitrogen)
test.
the manufactures raised the operating temps to
lower HC emissions, but with that came NOx.
a lil deadly gas.. so inducing a cooler inert
charge lowers the NOx. so at 45-70 the egr opens
and down goes the NOx.
so the visual will only be half.
this can be fixed by routing a tube from one
of the exhaust tubes and piped to the square
hole. costly, tight and not pretty to see.
the vortec guys have to do the same to pass
emissions. the heads do not provide exhaust pickup
for EGR.
airdeano

 

Omega: You are correct sir. We don't have testing any longer. If we still did, my car is old enough to be exempt, anyway. With really carefull tuning and the proper cam, it may be possible to pass emissions, like Grumpy mentioned, otherwise you'll need a lot more fabbing to get the EGR valve operational.

 

It looks like i *might* be able to tap into the flat section above the port. If i can do that i should be able to have a remote mounted EGR. I will have to pick up an intake to have a look.

 

hey dude,
can you show more pics of the back of the intake. I'm in the progress of doing this swap.

Is the washer you fabricated for the distibuter loose or fixed to the lt1 manifold.

 

Although you theoretically would need EGR to be fully legal, I don't think that the lack of an EGR system will make you fail. I'm basing this on my experience with a carb'd car (yeah I know, quite different) that could pass fine with no EGR and no computer on a dyno test. I would think that a properly tuned and running engine would pass easily without it.

 

I would still like to have the EGR. I will be going in there with a 350 instead of the 305 and i bet they are going to go ape when they see the LT1 intake sitting there. I don't know if they pop the hood when you swap engines. Hopefully they won't test it as a LT1, that would suck.

 

I really doubt that Joe Blow at the emmissions place will have any clue what motor you have in there. He won't know what the difference between an LT1 intake and a TPI intake.

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1991 Z28 - 350 TPI, T56, McLeod street clutch, LT4 pressure plate, Pro 5.0 shifter, ported plenum & runners, AFPR, Hooker shorty headers w/o AIR, Flowmaster muffler, homeade ram-air, SSM subframe connectors, Kenny Brown STB, Global West steering box brace, Steve Spohn adjustable torque arm and T56 crossmember

 

Damn, there goes my LT1 TB plate

 

zboss: All the pics I have so far are posted on my site. Jonh left his spacer loose, I bolted mine to the intake.

 

All the ones I'm doing for people I am screwing the spacer to the manifold. I have had too many leaks with mine just RTV'd.


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86 Camaro Sport
LT1 Induction
383 Speed-O-Motive Crate Engine, Raptor 700R4 Tranmission, Trick Flow Twisted Wedge G2's, 58mm Accel TB, 3.73 Auburn Pro, SLP Cold Air Induction and Headers, Hooker Cat-back, Serpentine Belt Setup, Dual IROC Fans, Jamex springs, 16" IROC Rims, 36mm/24mm Sway Bars, Global West Steering Brace. Hotchkis Rear LCA's,Panhard Bar and SFC's.
My Camaro Project
Moderator at SE ThirdGen