Turbo
Senior Member
Joined: Jul 2005
Posts: 139
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From: Tulsa
This was a pretty bad ass setup!!! This was my buddies 94 Hatchie 364whp and 303tq. Great tq out of this motor. It ran hard. Last time was a 11.19 but it caught on fire 1/3 way down track. Fuel line was lose on the rail!!
I'm made of meat!
Joined: Mar 2003
Posts: 3,580
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From: Richmond, VA
I seriously doubt any 1.8L displaced Honda will ever need to move 780cc's of fuel at anywhere below 1 bar.
Most 2.0L engines won't move 500CFM under 1bar with any turbo. Matching your injectors to whatever airflow your engine can sustain at WOT is the easiest thing you can do to help get the idle straight. Going too big can become a tuning nightmare.
2.0L DSMs come with 450cc's. Many DSMers upgrade them once they start pushing 17+ PSI. I know we're talking about Hondas here, so I'll just add that the Honda port sizes for intake and exhaust are half the size of a DSM's, and don't flow as much as a DSM can.
I'm with lkaliburn. 450's are fine. But to me, the turbo selection is waaaaay overkill. Get something smaller and cheaper. GT series are balls-to-the-wall, and unnecessary for the type of use you described.
Most 2.0L engines won't move 500CFM under 1bar with any turbo. Matching your injectors to whatever airflow your engine can sustain at WOT is the easiest thing you can do to help get the idle straight. Going too big can become a tuning nightmare.
2.0L DSMs come with 450cc's. Many DSMers upgrade them once they start pushing 17+ PSI. I know we're talking about Hondas here, so I'll just add that the Honda port sizes for intake and exhaust are half the size of a DSM's, and don't flow as much as a DSM can.
I'm with lkaliburn. 450's are fine. But to me, the turbo selection is waaaaay overkill. Get something smaller and cheaper. GT series are balls-to-the-wall, and unnecessary for the type of use you described.
Thread Starter
HIDs teh hotness!
Joined: Dec 2002
Posts: 3,196
Likes: 0
From: Newnan, Ga
Originally Posted by Jafro
I seriously doubt any 1.8L displaced Honda will ever need to move 780cc's of fuel at anywhere below 1 bar.
Most 2.0L engines won't move 500CFM under 1bar with any turbo. Matching your injectors to whatever airflow your engine can sustain at WOT is the easiest thing you can do to help get the idle straight. Going too big can become a tuning nightmare.
2.0L DSMs come with 450cc's. Many DSMers upgrade them once they start pushing 17+ PSI. I know we're talking about Hondas here, so I'll just add that the Honda port sizes for intake and exhaust are half the size of a DSM's, and don't flow as much as a DSM can.
I'm with lkaliburn. 450's are fine. But to me, the turbo selection is waaaaay overkill. Get something smaller and cheaper. GT series are balls-to-the-wall, and unnecessary for the type of use you described.
Most 2.0L engines won't move 500CFM under 1bar with any turbo. Matching your injectors to whatever airflow your engine can sustain at WOT is the easiest thing you can do to help get the idle straight. Going too big can become a tuning nightmare.
2.0L DSMs come with 450cc's. Many DSMers upgrade them once they start pushing 17+ PSI. I know we're talking about Hondas here, so I'll just add that the Honda port sizes for intake and exhaust are half the size of a DSM's, and don't flow as much as a DSM can.
I'm with lkaliburn. 450's are fine. But to me, the turbo selection is waaaaay overkill. Get something smaller and cheaper. GT series are balls-to-the-wall, and unnecessary for the type of use you described.
Thread Starter
HIDs teh hotness!
Joined: Dec 2002
Posts: 3,196
Likes: 0
From: Newnan, Ga
Originally Posted by TeHJuSTiN
Your goal is to run 8-10psi? You can do that on every single turbo available.
I'm made of meat!
Joined: Mar 2003
Posts: 3,580
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From: Richmond, VA
a 15g is a great place to start. It's very efficient under 1 bar, and spools fast. The faster your turbo spools, the better low end torque you'll produce, and the sooner your car will begin to accelerate. If you go too big on the turbine, it will be a PITA to spool, and once you do, it will take careful pedal pressure to maintain traction. If you're looking for something new, a Garrett T-28 is a good move. DSMers get 400hp out of it on a 2.0L when they really push it. Still fairly inexpensive, and about equal to a Mitsubishi 16g.
Most DSM turbos aren't all that great on a Honda. The wastegates are all set from between 11 and 14 PSI, so they usually need some work before being used on a Honda. Most of my experience is DSM related with turbochargers, so some others could answer better than I could about what works well on Hondas.
Like TehJustiN said, any turbo can move what your goal is (pressure-wise), but what you need to consider is how much air you want to move at any given pressure, and how hard you want to work your turbo to make that airflow occur. Pushing a small turbo too hard makes too much heat, and pushing a big turbo can be uncomfortable to drive on the street. Look up the sport compact car issues titled suck squish bang blow (I think they're from 2001). It describes very well how to match a turbo to your engine's flow characteristics. Good luck finding that series... maybe you'll get lucky if you google it...
Most DSM turbos aren't all that great on a Honda. The wastegates are all set from between 11 and 14 PSI, so they usually need some work before being used on a Honda. Most of my experience is DSM related with turbochargers, so some others could answer better than I could about what works well on Hondas.
Like TehJustiN said, any turbo can move what your goal is (pressure-wise), but what you need to consider is how much air you want to move at any given pressure, and how hard you want to work your turbo to make that airflow occur. Pushing a small turbo too hard makes too much heat, and pushing a big turbo can be uncomfortable to drive on the street. Look up the sport compact car issues titled suck squish bang blow (I think they're from 2001). It describes very well how to match a turbo to your engine's flow characteristics. Good luck finding that series... maybe you'll get lucky if you google it...
college kid
Joined: Mar 2003
Posts: 2,000
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From: New York
Originally Posted by txhatch
Thats as stupid as modding d series motors.
...*waiting for you to say, "ohh well if Full Race does it then its ok" hehe
*