low stock Boost vs high stock boost
My car is stock and I'm running about 7psi according to the stock gauge. My GTP was running 13 at one point :shock: Anyway, my brother's Regal ran about 8 psi stock. Wouldn't a lower number indicate a better flowing stock set up? Meaning less chance of KR once you pulley down? I found without and intercooler or alky, anything over 10 psi will start to give you knock. So I interpret 7 psi as a good thing, correct? Maybe not for right now, but for later down the road when pulley size starts going down. On my Grand Prix I was always running too much boost. Like 11-12 with a 3.4. Which was why I always had KR.....If I had been down to 10psi after the pulley swap, I don't think KR would have been such a big problem for me.
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theres many things you can do to remove KR.(wow, i give advice :grad: )
if you take some time to check the post , you will notice that everyone who have a smaller pulley , suggest (and have) i.e. colder plug, CAI, exhaust, etc.. it depend on the size of the pulley or the boost you want..same thing with a 3.4 pulley, at least you need colder plug, CAI, and a 160-180 thermostat(minimum) to eliminate chance of KR. lower than 3.4 exhaust is a must to add/have a performance exhaust and after, im not qualified enought to answer you.. :ack: hehe |
Your lack of boost is not necessarily an indication of better flow. You may literally be dumping boost. This could be caused by a vacuum leak, stuck boost controller, or faulty wastegate. Or it could simply be a faulty MAP sensor.
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Plus, from what I hear, not every supercharger is machined exactly the same, let alone many other engine parts. Slight differences may also cause slight changes in boost.
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:hail:
like i said, you guys are very useful, im learning a lot from you about bonneville, thx!! |
You guys might all consider the BCS adjustment mod. It could be limiting your boost right now, and it's a free 5-minute adjustment.
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When you do it though it f's your mileage....I sure noticed a big difference in mileage. Was worth the power until I started driving to Mankato every other weekend (140 miles round trip)
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Had no effect on my mileage whatsoever. It just gets into the boost quicker.
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Originally Posted by willwren
Had no effect on my mileage whatsoever. It just gets into the boost quicker.
I noticed up to an 80 mile difference per 1/4 tank? |
may be someone already ask you that question but, what it really does?as i read in post,
it open the boost faster, right? but did it close it faster too? or it give you full boost till u release the throttle? im planning on doing this, but i just want to make sure how it work and how it will help. thx :roll: |
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