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Enthusiast ![]() Joined Sep 9, '08 From Jamaica Currently Offline Reputation: 1 (100%) ![]() |
Hello,
I am wondering how i see people talking about turning up boost to 17psi on their CT20's yet no one had specified whether they changed spark plug gap nor retarded timing at all......So i turnt up my boost to 17 psi and was looking to see what happens.....sure enough i lost power on hitting my boost mark and saw leaning out on my gauges. Anyone else had this problem? So i wanna know what plug gap the stock motor 17 psi users have also how much to draw on the timing...if that will help Just as a starting point. o, i doubt it is fuel.....at idle my car shows 30 psi and while driving it has maybe 35-37 psi higher than pressure (aka 5psi boost = 40-42 psi fuel....10 psi boost = 45-47 psi fuel) This post has been edited by Island_Racer: May 11, 2013 - 10:50 AM |
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Enthusiast ![]() Joined Sep 9, '08 From Jamaica Currently Offline Reputation: 1 (100%) ![]() |
Got myself a meth/water injection system to install
![]() ![]() Currently without the meth/water i have: CT20B Turbo - 18PSI FMIC - 20 X 6.5 X 2.5 Core Size Emanage Blue - Pulled a lot of timing due to heat, etc and making 260 WHP and 262 WTQ. I wonder if i get cooling under control how much if can see 10%-15% and safer working conditions....idk |
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Enthusiast ![]() ![]() Joined Jan 17, '04 From Boston, MA Currently Offline Reputation: 1 (100%) ![]() |
Got myself a meth/water injection system to install ![]() now ive read that pre-turbo is good (cooler charged air and increases compressor efficiency), read also pre-throttle body is good as well (cooler charged air and cooler cylinders)... Where have you read pre-turbo is better ? H20 will eat the turbo compressor blades if injected pre-turbo ? Possible the H2O will collect/condense in the IC You have a BOV ? May vent the mixture ? Better after turbo and IC. (on superchargers it is beneficially to inject pre-sc to help seal the rotor seals) You are correct it will help to cool the TB. Found this quickly on Google search. http://www.alcohol-injection.com/en/conten...njection-nozzle Read Max More Boost by Corky Bell. and more info in Forced Induction Performance Tuning A. Graham Bell. Both are not a big fan of Water/meth injection, only in cases where you are octane limited, or limited my competition restrictions. (rally) WI is a Very controversial subject . YMMV. ![]() Pleasant regards; |
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Enthusiast ![]() Joined Sep 9, '08 From Jamaica Currently Offline Reputation: 1 (100%) ![]() |
Got myself a meth/water injection system to install ![]() now ive read that pre-turbo is good (cooler charged air and increases compressor efficiency), read also pre-throttle body is good as well (cooler charged air and cooler cylinders)... Where have you read pre-turbo is better ? H20 will eat the turbo compressor blades if injected pre-turbo ? Possible the H2O will collect/condense in the IC You have a BOV ? May vent the mixture ? Better after turbo and IC. (on superchargers it is beneficially to inject pre-sc to help seal the rotor seals) You are correct it will help to cool the TB. Found this quickly on Google search. http://www.alcohol-injection.com/en/conten...njection-nozzle Read Max More Boost by Corky Bell. and more info in Forced Induction Performance Tuning A. Graham Bell. Both are not a big fan of Water/meth injection, only in cases where you are octane limited, or limited my competition restrictions. (rally) WI is a Very controversial subject . YMMV. ![]() Pleasant regards; Well my statement was that pre turbo was good...not saying it was better than anything. Id share the written material i read but for the life of me i dont remember where. hahaha, funny enough, it was a "devils own" kit i bought...nice What i had read though (which after reading your link seems similar) just stated that the cooler air would increase the compressors ability to pack more air through the housing and alter the compressor map...it noted your strong point about corrosion but stated that the use of a smaller nozzle to restrict how much actually faces the blades may solve that problem. Also it noted the possible accumulation of it at the bottom of the intercooler as you did, and said again the size of the nozzle has an effect on that i have 90 octane at best where i am. I was of the impression that 5-6 inches or further from the TB was the option to use but saw that other information and got curious whether it makes sense to try using two together, and now i will be looking through some of what you have shared... This post has been edited by Island_Racer: Jun 6, 2013 - 10:24 PM |
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