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RC 370's or DSM 450's (what would you choose at 9 psi)

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Old 04-28-2003, 02:15 PM
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Default RC 370's or DSM 450's (what would you choose at 9 psi)

Currently I'm running the VAFC hack with the RC 370's at 9 PSI untuned on a B16. I have my trim set at about -29. It doesn't seem like I'm getting any detonation but I'm not completely sure. Would you guys swap the 370's for the 450's or should the 370's be good enough??
Old 04-28-2003, 02:18 PM
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Default Re: RC 370's or DSM 450's (spacetuna)

And how does that -29 trim look - too lean/ too rich??
Old 04-28-2003, 02:18 PM
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Default Re: RC 370's or DSM 450's (spacetuna)

What size turbo on what motor?
Old 04-28-2003, 02:44 PM
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Default Re: RC 370's or DSM 450's (Mr Milano)

T3/T4B on a B16 (1.6 vtec)
tial wastegate
blockguard
arp headstuds
ctr cams
skunk manifold
chipped ecu (no advance)
timing retarded 3 degrees
Blow off valve
Old 04-28-2003, 04:45 PM
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Default Re: RC 370's or DSM 450's (spacetuna)

i dont see how its possible to trim -29 on 370's and NOT detonate! thats like running 260cc injectors, which isnt even stock size. at 9 psi, you should be requiring 450's with some trim.
Old 04-28-2003, 04:45 PM
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Default Re: RC 370's or DSM 450's (keebler65)

but i forgot to ask....are you running stock fuel pressure? this has a big impact...
Old 04-28-2003, 07:22 PM
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Default Re: RC 370's or DSM 450's (keebler65)

I would run the DSM 450's. The VAFC should have enough leighway should you have to lean them out. Do not turn the fuel pressure down to compensate though as the combustion will not attomize nearly as well. Stock pressure is good and I don't think you will have a problem. Look into Hondata very soon if daily driven.
Old 04-28-2003, 08:24 PM
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Default Re: RC 370's or DSM 450's (Mr Milano)

450cc injectors.... you will want to up the boost in the future...trust me
Old 04-28-2003, 08:38 PM
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Default Re: RC 370's or DSM 450's (turbod16y8)

i'm using 370's but my fuel pressures are pretty steep
Old 04-28-2003, 08:47 PM
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Default Re: RC 370's or DSM 450's (zojirushi)

450's
Old 04-29-2003, 12:22 AM
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Default Re: RC 370's or DSM 450's (Jackson4Door)

Go 450s. It will allow you to turn up da boost a little more without CEL. Also to be on the safe side so you dont lean out.
Old 04-29-2003, 12:26 AM
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Default Re: RC 370's or DSM 450's (swlabhot)

go saturated rc 440's over the dsm 450's IMO....
Old 04-29-2003, 12:39 AM
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Default Re: RC 370's or DSM 450's (GOLDBERG)

Yep as it would eliminate the need for resistors but they are $$$ compared to ghetto DSMs
Old 04-29-2003, 02:47 AM
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Default Re: RC 370's or DSM 450's (swlabhot)

yeah and eliminate problems associated with the dsm's...not always..but sometimes....just depends how lucky you are i guess..
Old 04-29-2003, 04:39 AM
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Default Re: RC 370's or DSM 450's (GOLDBERG)

Ok, I guess I'm gonna swap in the 450's. I just heard that there was a lot of problems associated with the DSM 450's and when I bought the RC's they didn't have the 440's in stock.
Old 04-29-2003, 06:23 AM
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Default Re: RC 370's or DSM 450's (spacetuna)

I have DSM 450cc injectors blue top running VAFC hack....no problems at all!
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