How to obtain max power from a 1HDT engine

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strx7
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Joined: Thu Jul 13, 2006 12:00 pm

Re: How to obtain max power from a 1HDT engine

Post by strx7 »

Dirtydog wrote:
i know that the extra meter worth of pipe makes a hell of a difference when it comes to performance cars,


only if your idea of a performance car is a GT starlet with a standard turbo and you are using 3 inch pipe........

I have built 400Hp competition cars, and played around with FMIC set ups on my cruiser for over 2 years before offering kits for sale. If you aren't repeating fact, only hearsay just sit in the corner and learn from others if they are patient enough to share it.

if you are going to spend the time, money and effort on intercooling anything, the intercooler needs sufficient ambient air flow to keep it cool. Any intercooler sitting in an engine bay, and especially onto of the motor becomes an interheater when you try to slug a big load up a hill. The larger the core of the intercooler the slower it heats up. The hottest inlet air temp I have seen during my testing was 70 degrees celcius. Without an intercooler your inlet air temp is considerably higher than that as soon as your boost guage reaches double figures. The higher you boost the higher the air temp becomes, the hotter the ingoing air, the hotter the exhaust gas coming out and the less power and torque you are making.

water & alcohol injection is the best method I have come across to keep EGT's in check in a deisel and it can be tuned/tweaked to give you more torque and power while you are at it.
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crazyclark31
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Re: How to obtain max power from a 1HDT engine

Post by crazyclark31 »

Firstly a bigger exhast helps by getting rid of the gases faster.this in turn reduces pressure which in turn reduces heat. It works best when the turbo is spooling under full load.ie hard accelleration and at full load(towing up hill). Also reduces back pressure which contirbutes to higher temps.

An upgradmes(bigger) turbo will still work with a std pump. Bigger turbos will derliver more air than a smaller turbo at lower pressures. This keep the turbo more in its efficentcy range therefore keeping the air temps down
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