Is it OK to put a 180 degree thermostat in a 1996 Bonneville - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 04-20-2003, 11:17 AM   #11
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I just got through putting in the 180 degree thermostat. I also flushed my coolant system, changed PVC valve, changed fuel filters, gutted my air box and removed the MAF screen. Car seems to have a much better reponse. Next is NGK Iridium IX plugs and maybe Taylor wires. Also I am going to work on a ram air system and maybe something with my exaust
It has begun....the exhuast will really help too....good luck
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Old 04-20-2003, 06:34 PM   #12
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there'* a few people workin on a ram air system.. I would recommend the exhaust first. with hotter climate coming.. the exhaust would help with power and the release of heat from the engine a lil quicker. I don't know what kinda ram air people have done.. mine is an al cheapo dryer duct from the airbox to underneath the fog light opening.. it doesn't seem to do much in city.. but on highway speed of 80 - 90 km over.. it seems to help out more... and when it rains.. I just have to push it underneath the bumper as so it won't get any rain into the intake system.. it'* a half *** job until we can figure out something better.
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Old 04-21-2003, 03:15 AM   #13
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I think I am going to make my ram air out of 3" PVC. I think I can get it to fit behind my headlight and into the air box. When I gutted my box out I didn't put a bigger hole in the front because I don't want it to big for the PVC. I am going to have it behind my grill starting at the passagers side grill with a 90 elbo then behind the drivers' side with a T then hopefully some how get it to go down and back up behind the head light. And since I didn't cut my air box yet I will seal it all up tight so all the air is forced into the intake. I might put some kind of 180 elbo and a water valve in the bottom of it to help with the water. I will take some pics when I start on it and try and get them posted so others can see. I will be done with college for the summer in like 3 weeks and my wife is going out of town with one of her freinds for a week so I will have all the time in the world. As for the exhaust for now I plan on splitting the exhaust at the rear wheels and putting dual pipes out the back this shoud help the air flow and sound. Then I will work on the cat converter next. Did I ever mention I love this place, I have been talking about making some additions to my bonneville but never realy played them through. Now I I see all you guys that have the same passion for the Bonnevilles that I do and everything is just coming together. Thanks! As for now it is time for bed after my adventures last night with the coolant fush, thermostat change, air box gutted, fuel filter and pvc changed that kept me up until about 5am this morning I am just beat after work today.

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