LT1-LT4 Modifications 1993-97 Gen II Small Block V8

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Old 03-18-2013, 02:22 PM
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Ok all. My questions are about the difference in shortys, mids, and LT's. Now I know enough to know the best power gains are from LT"s however they are also a pain in the *** when it comes to emissions, Y pipes and ground clearance. Now I guess the big question here is are mids even worth the price and hassle. I have a 95 Z28 vert with 59xxx miles and its competely stock aside from the SLP LM1 I just put on. I dont really want to take anything away from the car since its darn close to perfect but I am considering doing some general matinance such as plugs, wires, water pump (even tho its not leaking I dont want to take a change of it blowing out my opti lol) and have heard that headers really clean up the engine bay and make plugs and wires alot easier. I dont really want to make it a catless car and would still like it to pass emissions. Do the mids bolt up to factory y pipe or do I have to get a new one either way? From all the ones ive been looking at the driver side looks as if it would bolt in directly where my first cat is (California car). I appreciate any help on this topic and please feel free to voice your preference and/or experience. Thank you
Old 03-18-2013, 02:42 PM
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leave it alone and enjoy the car how it is, or sell it and get an OBD2 car so you dont have to deal with the emmisions sniffer.
Old 03-18-2013, 06:05 PM
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haha yea that was the original thought but I figure if it really makes all my general mantinance that much easier and it could get me a few HP in the process, well thats win win.
Old 03-18-2013, 08:39 PM
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if your getting emissions headers, they will not clean up your engine bay
Old 03-18-2013, 08:57 PM
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Originally Posted by pillarpod
if your getting emissions headers, they will not clean up your engine bay
I guess your right when it comes to the hoses and what not. Now would that apply as well with access to spark plugs or not? What I guess I mean is the design of the primaries more egernomically friendly?
Old 03-18-2013, 11:27 PM
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If you are worried about the ease of spark plug maintenance, you should not be putting headers on this car. No offence I am just being straight up. NOTHING short of removing the motor makes doing the plugs easier on these cars. lol If that car only has 60K on it the next spark plug change would be its last more than likely anyway.
Old 03-18-2013, 11:58 PM
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I've had great success with pacesetter mids.
Old 03-19-2013, 02:34 AM
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Originally Posted by ramair96ws6
If that car only has 60K on it the next spark plug change would be its last more than likely anyway.
What is the general life span of the stock plugs.? If im jumping the gun ill just hold off and drive the wheels off the thing this summer and not worry about it . I would just like to keep it in tip top shape.
Old 03-19-2013, 09:48 AM
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we have emissions control here to, you can pass a sniffer test with highflow cats. but if they have a visual inspection then your goose is cooked. they dont visually inspect here, or if they do, not very well lol.
Old 03-19-2013, 09:58 AM
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Get Mac mids. Plug access is good, they are emissions legal, and you can easily have a catalytic converter and straight pipe flanged so you can swap them out when the need arises.
Old 03-19-2013, 02:11 PM
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Originally Posted by SS RRR
Get Mac mids. Plug access is good, they are emissions legal, and you can easily have a catalytic converter and straight pipe flanged so you can swap them out when the need arises.
Macs would certainly b e the way to go.
Old 03-19-2013, 08:17 PM
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Install long-tubes and an ORY then move from Kommie-fornia to America and enjoy no emissions regulations on cars, open carry of sidearms, and the ability to own pretty much any damn gun you choose with any size magazine.
Old 03-19-2013, 08:51 PM
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I thought all states had controlled emissions...
Old 03-19-2013, 09:23 PM
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emission control isnt really the issue. We have a sniffer test but no visual inspection so its not really a issue either however I just want the driveability of a header that wont scrape a pebble off the street. And I could go allllll day on gun control and the state this country is in but thats another forum all together. Thanks for the imput yall. Im fairly new to the F-body scene and this forum kicks ***. KCCO!!!!
Old 03-19-2013, 09:25 PM
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and this is entirely off topic but i beleive my man in this smiley here has a misfire on the pistol in his right hand. Just a observation
Old 03-19-2013, 09:32 PM
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I know this a little off topic, but speaking of emissions... You guys know if they have a visual in NJ? :?
Old 03-19-2013, 09:54 PM
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well from my brief research this is a sample test:
IDLE TEST - PASS:
GAS READING STANDARD
HC ppm 140 220
CO% .28 1.20
CO2% 15.2
02% 0.5%

HIGH IDLE - PASS:
GAS READING STANDARD
HC ppm 96 220
CO% .95 1.20
CO2% 14.2
02% 1.%

Secondary Emission Tests Performed:
Gas Cap - Previously Pass
Tampering - Previously Pass
Visible Smoke - Pass
Liquid Leak - Previously Pass
Indicator Light - N/A
Misc Emissions - Pass


Now where it says "tampering" I would assume thats where the headers/ORY would fall. I also noticed some people saying they no longer do visuals just simply the sniffer.
Old 03-19-2013, 10:55 PM
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Originally Posted by GhosT5
I know this a little off topic, but speaking of emissions... You guys know if they have a visual in NJ? :?
I think they have mirrors under the car. The woman told me it was dark because my car was so low. so idk if they check for pre-cats though, maybe just post cat?
Old 03-23-2013, 09:50 AM
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If the car is running great, and your worried about "emissions" the please leave it alone.

On my old ws6 i ran shories and ended up going to a Pacesetter long tube set up. Ory and a borla cat back.

The car couldnt leave GA because it would never pass inspections, and ga doesnt do ANY here in Savannah.

Overall if you want to wake up the car, i would suggest gear swap.. or other little bolt on..
Old 03-24-2013, 02:54 AM
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yea the car runs fantastic now and I would hate to do something and change that. I think my real concern is how many miles should you go before a plug and wire overhaul?


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