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Mar 28, 2013 | 09:59 PM

ken1960

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107

i have 107 motor an put a 58mm throttle body on i have stock injectors in her now , if change them to 53.2injectors will that be a noticble change in power

Mar 28, 2013 | 10:35 PM

WI Bob

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Joined: May 2008

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From: Madison, WI

Tell us more about your build.
What cam, how much compression, exhaust, intake, current HP/TQ?
What year?

You likely would not notice anything but a harder to tune low end.

Mar 29, 2013 | 02:25 AM

VibratingPotato

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Joined: May 2009

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From: Ohio

If you have a strong build with ported heads n stuff and much over 100 HP, you may benefit using 5.3 injectors.
But a 58mm TB on a 107 is too big in my book.

Mar 29, 2013 | 04:03 AM

stupid_rope

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Joined: Apr 2008

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From: Satans Asshole

Quote:

Originally Posted by VibratingPotato

If you have a strong build with ported heads n stuff and much over 100 HP, you may benefit using 5.3 injectors.
But a 58mm TB on a 107 is too big in my book.

agreed. 58 is way too big

Mar 29, 2013 | 06:16 AM

SlimsSG

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From: Wake Forest, NC

I can tell you it was highly recommended for my build. Of course I have ported heads (Dewey Heads), 10.5:1 compression, and a 55mm TB. You should talk to a performance shop also.

Mar 29, 2013 | 06:48 AM

lkr0

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Joined: Nov 2006

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From: Stockbridge, GA (Atlanta)

have to agree 58 is way to big for a 107 - at times bigger does not = more power -- also with motor builds you get to the point of deminishing returns

Quote:

Originally Posted by stupid_rope

agreed. 58 is way too big

Mar 29, 2013 | 09:20 PM

ken1960

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it has 102hp an 110 tq, got 10to1 comp 575 mackey cam revolution perf. heads 58mm throttle body, v&h powerdualls monster ovalls, rev. perf. tuner

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Mar 29, 2013 | 09:30 PM

soft 02

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Joined: Mar 2007

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From: TOAK western branch

You would gain more on the bottom end with a smaller TB. You prolly need the larger injectors too. Dont know about your tuner but you need to tell it when you install injectors. Did you put this combo togather?

Mar 29, 2013 | 09:44 PM

ken1960

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yea , dealer ordered wrong pistons ,i wanted 10.5 to1, i thought bigger injector make more power with that setup

Mar 29, 2013 | 11:50 PM

#10

CigarCritic

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Joined: Dec 2007

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From: Houston

In general, larger throttle body, more HP. Either go with an Autotuner or find another human tuner, your numbers are low for your build. Larger injectors are not going to solve your issue with low numbers.