So.....50-trim or 57-trim

974 Views 9 Replies 6 Participants Last post by Speed Freek, Jun 10, 2010

03TacoPre

Discussion Starter · Mar 10, 2010

So yea, like the title states, looking for suggestions on what trim I should go with. I ran the numbers, and this is what it comes out too:

Using the following formula:

( cid X .5 X Ve X rpm ) / 1728 = cfm
( 14.7 + psi ) / 14.7 = P.R. (press. ratio)

P.R x CFM = boosted CFM

boosted CFM / 13 = lbs/min

cid=164.764

cfm=266.025

p.r.=1.816

483 boosted cfm

37.15=lbs/min

This is based on a VE of 90% and peak boost of 12psi.

Suggestions?

Thanks in advance,

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[email protected]

· #2 · Mar 10, 2010

Both are good choices buy the 57 will give you more up top

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dropthattaco

· #3 · Mar 11, 2010

57 all the way!!! You won't regret it.

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Speed Freek

· #4 · Mar 11, 2010

Yep like they said, you know your going to turn it up eventually, and if you say your not........your lying. :evil:

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03TacoPre

Discussion Starter · #5 · Mar 11, 2010

Thanks guys,

Garrett 57-trim ordered 5 minutes ago.

Tuning suggestions?

I was seriously considering an AEM FIC unit with a PNP harness but looking at the Split Second MAF Calibrator this looks like it will work just as well.

Thoughts?

I know ultimate tuning is best with a standalone....but well, ya know...

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Speed Freek

· #6 · Mar 11, 2010

03TacoPre said:
Thanks guys,

Garrett 57-trim ordered 5 minutes ago.

Tuning suggestions?

I was seriously considering an AEM FIC unit with a PNP harness but looking at the Split Second MAF Calibrator this looks like it will work just as well.

Thoughts?

I know ultimate tuning is best with a standalone....but well, ya know...

Haltech PS 1000 FTW!!!! I tried the piggybacks only to be disapointed when the "trims" screwed everything up, in my experience the piggys work maybe at low boost but when your running 12+ a standalone becomes necessary.

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2c3rz

· #7 · Jun 10, 2010

IF you are going piggyback get the FIC its got alot it can do in one unit for being a piggyback compared to others that need to add other piggybacks........I only paid 320 shipped for mine........I has a timing map, MAF map, Fuel map, MAP map, 02 map, analog A map, anolog B map..........and other stuff like RPM, AFR and load guages......I just put mine in and am getting to know the program.......but it seems pretty easy to use coming form a guy who is new to tuning.......I wired it myself with zero problems:waytogo:

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Speed Freek

· #8 · Jun 10, 2010

2c3rz said:
IF you are going piggyback get the FIC its got alot it can do in one unit for being a piggyback compared to others that need to add other piggybacks........I only paid 320 shipped for mine........I has a timing map, MAF map, Fuel map, MAP map, 02 map, analog A map, anolog B map..........and other stuff like RPM, AFR and load guages......I just put mine in and am getting to know the program.......but it seems pretty easy to use coming form a guy who is new to tuning.......I wired it myself with zero problems:waytogo:

Thats what I thought when I was running the Greedy Emanage Ultimate it is a very good controller, but once you turn it up, things arent so easy, like I said in one of the earlier posts they work great until your in the 15psi range, as I found out.

But maybe others have better luck with other piggys than I did.

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garetcurry

· #9 · Jun 10, 2010

Speed Freek said:
But maybe others have better luck with other piggys than I did.

Maybe you aren't very elite. :nana:

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Speed Freek

· #10 · Jun 10, 2010

garetcurry said:
Maybe you aren't very elite. :nana:

Apparently not..

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