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  #51  
Old 06-16-2019, 11:33 AM
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Im hoping to build a kit and sell it... But i still need some $$ to start developing the kit. Dpending on the total cost would be the sell price... Donations welcomed ��
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  #52  
Old 06-16-2019, 05:03 PM
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.1 decrease 0-60 time = $1000 & DIY
 
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Best return on investment is nitrous and meth injection. Downside is having to refill the tanks.
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  #53  
Old 06-16-2019, 05:06 PM
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Quote:
Originally Posted by bcredliner View Post
Best return on investment is nitrous and meth injection. Downside is having to refill the tanks.
Water meth is esy enough....but you might not get a lot of gain fron it. Nitrous for shure
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E36 M3 95-sold
E30 318i 91-sold
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E36 M3 98-sold
E53 X5 4.4 05-the beast
E53 X5 3.0 5M/T 01-sold-coming back ETA 22SEPT Its back
R56 Mini Cooper S 07-sold. I should have keept it
E83 X3 3.0-the wife's
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  #54  
Old 06-16-2019, 05:28 PM
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Quote:
Originally Posted by Emory39 View Post
Water meth is esy enough....but you might not get a lot of gain fron it. Nitrous for shure
Not suggesting meth alone, suggesting nitrous with meth.
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  #55  
Old 06-16-2019, 05:39 PM
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Quote:
Originally Posted by bcredliner View Post
Not suggesting meth alone, suggesting nitrous with meth.
Aah. Gotcha.
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E53 X5 3.0 5M/T 01-sold-coming back ETA 22SEPT Its back
R56 Mini Cooper S 07-sold. I should have keept it
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  #56  
Old 06-20-2019, 05:46 AM
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Quote:
Originally Posted by bcredliner View Post
Best return on investment is nitrous and meth injection. Downside is having to refill the tanks.



The downside is not having a permanent power. That's why it's two different things.
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  #57  
Old 06-20-2019, 10:19 AM
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The downside is not having a permanent power. That's why it's two different things.
couldnt agree more.. yes, nitrous is fun but it isnt at the touch of the pedal and consistent as boost...

as a spirited driver, hands down, one should strongly consider boost.
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  #58  
Old 06-20-2019, 02:21 PM
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Quote:
Originally Posted by twinspool View Post
couldnt agree more.. yes, nitrous is fun but it isnt at the touch of the pedal and consistent as boost...

as a spirited driver, hands down, one should strongly consider boost.
Nitrous is technically a form of boost. I have it triggered by wide open throttle. When matted you get all 150 even from the launch. There is no boost to build. It is an instant power adder at its full potential. The only reason there can be a loss of boost is if the tank pressure is too low. I have two bottle openers so I can use one tank or the other or both and a bottle heater I can switch on to build pressure. I have never lost pressure. I have pressure gauges on each tank and in the console to verify pressure at the tanks and at the nozzle.

Clarification: My personal downside is I have to remember to push a button when I start it up and close it when I get back. I started with one 10lb bottle. It was a downside until I purchased 3 15 lb tanks and put two in place so I don't have to fill them that often and don't get low on the road. I always have a spare full bottle. FYI- I still have some anxiety just before I use it. I knew just enough to be dangerous when I started. The tanks also take up considerable space in the rear so that would be a downside if I cared.

When I went to nitrous years ago I costed out twin rear turbos and a supercharger. I got much more HP and TQ for far less expense with nitrous and Meth and a much easier install. I love the sound of superchargers If there was a supercharger kit based on the Dinan design for around 5 grand I'd have it and then go to a 2 stage nitrous shot of maybe 100 and a 25 or 50 second danger zone shot.

IMO, turbos and superchargers are not a hands down decision on our X5s based on a value equation of cost divided by HP/TW gains. X5s are heavy so I focused on increasing low end torque as much as possible from standing start. As you know torque gets you going, horsepower keeps you going.

I don't mean to sound like I am promoting nitrous. This is just what I learned along the way. If we were talking about newer BMWs that start from a higher HP/TQ baseline and you can upgrade the turbo system with custom kits that generate huge gains or just add a tune, I agree. I purchased a $1,000 tune that requires no other mods to our X5M that generates an additional 150HP and 198 on the torque side. Takes it over 700HP. That's a great value.
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Last edited by bcredliner; 06-20-2019 at 02:27 PM.
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  #59  
Old 06-21-2019, 03:24 AM
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Quote:
Originally Posted by bcredliner View Post

IMO, turbos and superchargers are not a hands down decision on our X5s based on a value equation of cost divided by HP/TW gains. X5s are heavy
I went down the bolt on supercharger route many years ago as a lad with a local Holden (same as your 2005 Pontiac GTO) with the 5.7 Ls1... un-driveable with axle tramp getting it off the line, octane issues with the local fuel etc meant I eventually sold both the blower and the car...

That said I just want a 'little' bit more out of the 4.8is... It's always lovely to give it the heavy right and squirt out of a corner/overtake and surprise the hell out of others...

Speaking of which.... does anyone know anything about a Dinan 'stroker' kit supposedly around some time ago?
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  #60  
Old 06-21-2019, 11:01 AM
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Quote:
Originally Posted by bcredliner View Post
Nitrous is technically a form of boost. I have it triggered by wide open throttle. When matted you get all 150 even from the launch. There is no boost to build. It is an instant power adder at its full potential. The only reason there can be a loss of boost is if the tank pressure is too low. I have two bottle openers so I can use one tank or the other or both and a bottle heater I can switch on to build pressure. I have never lost pressure. I have pressure gauges on each tank and in the console to verify pressure at the tanks and at the nozzle. .
Do you mind sharing your build here or PM?
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E36 M3 95-sold
E30 318i 91-sold
E39 528i 00-rebuild at136K -sold
E36 M3 98-sold
E53 X5 4.4 05-the beast
E53 X5 3.0 5M/T 01-sold-coming back ETA 22SEPT Its back
R56 Mini Cooper S 07-sold. I should have keept it
E83 X3 3.0-the wife's
E36 M3 97 - The new project - sold
https://www.youtube.com/channel/UCcI..._as=subscriber
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