LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Typical/Highest RWHP Full Bolt-on LT1 #'s?

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Old Aug 27, 2004 | 12:15 PM
  #1  
kgkern01's Avatar
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Typical/Highest RWHP Full Bolt-on LT1 #'s?

Just as the subject says, I was just wanting to find out what a typical full bolt-on LT1 dyno's and 1/4 mi at? Bolt-on's including Headers, CAI/RamAir, cutout, catback, tuned PCM, gears, and even 1.6RR or 1.7RR.
Old Aug 27, 2004 | 01:11 PM
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Re: Typical/Highest RWHP Full Bolt-on LT1 #'s?

i got 291.0rwhp 324.4 rwtq in 97 degree heat without full bolt ons in an A4, although i have since slowified the car, that pull was made with open exhaust after the y pipe it now has a flowmaster catback on it and heavier wheels..id imagine if i added 1.6 RRs and an electric waterpump id be in the 310-315 zone in cool weather..i would imagine the record for an M6 is around 320-325rwhp maybe even close to 330rwhp if u went with 1.7RRs instead with a dyno tune and open long tubes
Old Aug 27, 2004 | 01:53 PM
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Re: Typical/Highest RWHP Full Bolt-on LT1 #'s?

Well i havent had it dynoed again since I did free mods i just put my msd on today so i would say all free mods and msd 10 more horses. my sig is old will get it on dyno soon again.
Old Aug 27, 2004 | 02:07 PM
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Re: Typical/Highest RWHP Full Bolt-on LT1 #'s?

I am at 295 and 328 look in sig. I have seen some with a tune get a little over 300hp
Old Aug 27, 2004 | 04:20 PM
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simple's Avatar
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Re: Typical/Highest RWHP Full Bolt-on LT1 #'s?

stock tune
long tubes, ORY pipe, loudmouth, SLP cai, 12bolt 4.10's, Taylor OTVC wires, Autolite plugs, free mods
put down 298hp and 310 tq on a mustang dyno (SAE corrected)
MD's usually read low on TQ
times in sig
Old Aug 27, 2004 | 04:27 PM
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Re: Typical/Highest RWHP Full Bolt-on LT1 #'s?

Well mine has never been on the rollers or been tuned but you can see my sig for other info. Using the calculations I'm at somewhere around 300HP at the wheels with no rockers or PCM tune.

Last edited by Tekprodave; Aug 27, 2004 at 04:29 PM.
Old Aug 27, 2004 | 06:16 PM
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Re: Typical/Highest RWHP Full Bolt-on LT1 #'s?

My buddies '94 Z28, M6 is 314.8 rwhp and 344 rwtq with Hooker long tubes, cold air, 1.6 rockers, slp catback, MSD 6AL, and a underdrive pulley with PCM forless tuning. His car runs mid 12's in the quarter at 111mph (He is an awesome driver). The dyno runs were done through the full exhaust, no cut-out or open header.

Jeff
Old Aug 27, 2004 | 06:26 PM
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Re: Typical/Highest RWHP Full Bolt-on LT1 #'s?

Anyone running 1.7RR? I would like to see some #'s/times with these also. Just trying to get some ideas here.
Old Aug 27, 2004 | 10:45 PM
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Re: Typical/Highest RWHP Full Bolt-on LT1 #'s?

Yes, I think about the best you can expect out of all the bolt-ons is 305-315 rwhp, and a ton of rwtq, in the range of 335-345 ft-lbs.

The typical bolt-ons(Headers, catback, CAI) typically get about 285-295 rwhp, add 1.6 RR's and maybe hit 300-305 rwhp, add electric water pump and hit 305-310 rwhp, add underdrive pulley and get a few more... This is all for a M6 though, in great running condition.

Dan
Old Feb 10, 2021 | 04:39 PM
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Re: Typical/Highest RWHP Full Bolt-on LT1 #'s?

I have some mods ill be doing including what i have done and not done updated in my sig. I think with what im going for all in all i can pull 340 rwhp when said and done and 350 rwtq. Will take a few more grand at least and another year but im shooting for it.
Old Feb 11, 2021 | 09:56 AM
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Re: Typical/Highest RWHP Full Bolt-on LT1 #'s?

I just got dyno'd at 417HP/425 torque NA (no spray) with the mods listed in my sig. Haven't done a 1/4 mile run yet.

LLoyd says there's a little more there. I seem to be losing fuel top end. Racetronix Walbro 255 kit is on the way!


Last edited by KYWes; Feb 11, 2021 at 10:11 AM.
Old Feb 11, 2021 | 10:06 AM
  #12  
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Re: Typical/Highest RWHP Full Bolt-on LT1 #'s?

Holy **** those number are with stock bottom end? Thats an impressive set of parts!!!! Great number to, how does it run with that jet maf? I got a stocker im going to do fast toys ends on.
Old Feb 11, 2021 | 10:14 AM
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Re: Typical/Highest RWHP Full Bolt-on LT1 #'s?

Actually no re: the bottom end. Has Scat rods and Wiseco pistons, crank was turned .010, bore .030 and engine has been balanced. Need to update my sig.

She runs well. The Jet MAF is fine. Had to do the drill mod on the TB.

Had Solomon of LT1tpcmtuning.com do the tune.
Old Feb 12, 2021 | 02:59 PM
  #14  
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Re: Typical/Highest RWHP Full Bolt-on LT1 #'s?

Bet that thing pulls like a ****.
Old Feb 13, 2021 | 04:30 AM
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Re: Typical/Highest RWHP Full Bolt-on LT1 #'s?

Originally Posted by LT5
Bet that thing pulls like a ****.


Where in Kentucky for you?



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