tune question...

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Aug 16, 2010 | 09:55 PM

1994lt1ta

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tune question...

so ive seen plenty of LS1s put longtubes, catless y and a catback on and gain 30-40rwhp after a tune...well my LT1 has K&N CAI, longtubes, catless Y, and a magnaflow, no tune...does anyone have an idea how well LT1s with the similar mods respond to a tune? is it gonna be noticeable? thanks guys

Aug 16, 2010 | 10:05 PM

BlackBird87

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From: Elmwood Park

You will benefit from the tune how much hp tho is hard to say

Aug 16, 2010 | 10:14 PM

1994lt1ta

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yea im not lookin for a precise number, just curious if they respond the same as an LS1 powerwise, or close to it, because if a tune can shave a couple tenths off my ET ill be happy

Aug 17, 2010 | 12:50 AM

Bowtie Boy

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LS1s really benefit from tunes, I believe the rwhp gain is more from tunes then headers on an LS1. LS1s could gain upwards of 15-20 rwhp through the average full exhaust being that their stock manifolds are very similar to shorty header performance. While an LT1 could gain upwards of 25 rwhp from headers alone. This comes through experiences ive seen, heard and read on both platforms LTx and LSx.

Aug 17, 2010 | 01:06 AM

gregrob

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Quote:

Originally Posted by 1994lt1ta

If you have already done those mods, you absolutely NEED a tune to optimize the results. 30+ hp is completely reasonable by these same mods on an LT1, with the proper tune.

If you used a catless Y the car will be PIG rich and NEEDS to be tuned.