Join Date: Nov 2011
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I love how forums make you explain yourself. I already built a 550whp 67mm SR20 about 5 years back. Ran high 10's @ 132-133mph, stock suspension, stock 5 speed with only drag radials. Coming from an inline four to the flat four, spool up is a bit different. The turbo i had on the SR before the 67mm was a GT2871R which was doing 400whp @ 21psi and hit full boost around 4200rpm. Im looking for something similar in spool up and flows around 40 lbs/min to get the engine to 400hp (not awhp).
The two suggestions are the 18g and 20g. What rpm will spool start and hit full compared to one another?
Im asking for the spool charectoristics of these turbos on the ej205. If it was a inline 4 i would already know which turbo to go with but because the flat 4 has such a longer exhaust path, it will spool later then what im used to. So if you dont mind, stop posting useless crap in the thread. Help out instead.
Thank you to the other guys for posting your info and opinions. They have helped and i appreciate it. That 20g dyno looks pretty nice and smooth. Would you say that turbo on a 2.0L would change the peak tq numbers by around 500-750rpm or so?
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