Results 1 to 11 of 11

How much HP/TQ would you think I would see with a tune?

This is a discussion on How much HP/TQ would you think I would see with a tune? within the Computer & Tuning forums, part of the LSx Technical Help Section category; Right now (to the best of my knowledge) my car has the stock tune with the following mods: BBK 80mm ...

  1. #1
    Junior Member KIXASS's Avatar
    Join Date
    Oct 2006
    Location
    MARYLAND
    Posts
    97

    How much HP/TQ would you think I would see with a tune?

    Right now (to the best of my knowledge) my car has the stock tune with the following mods:
    BBK 80mm throttle body
    LS6 intake
    Edelbrock shorty headers
    No name HI-FLOW (suppose to be) catalytic convertors
    Stainless Works 2.5" Y-pipe
    3" cat-back with single-in/single-out Flowmaster Super44 muffler
    4.10 gears
    SLP lid
    K&N filter
    ram air mod
    throttle body coolant by-pass

    I tries to put on a descreened p/p mass air, but it ran like shit and the SES light came on. So I went out and bought a new MAF and installed it.

    I was saving for a cam set-up and install. I was going to have them dyno tune it then. Right now the car idles fine and cruises fine, but when you mash the gas it feels like something is holding it back. It just don't pull as hard as I think it should, especially with the 4.10's.

    I did pull 3 codes and they were P1133, P1153 & P1416. When I got the car from the previous owner, it had hollowed out stock cats with a SLP LM2 exhaust. Then it seemed to pull a lot harder up top than it does now. I ended up replacing them with a set of (no-name)Hi-flows off ebay and changing out the nasty sounding SLP loundmouth 2 system. I'm starting to think that maybe these cats aren't as "HI-FLOW" as they say they are. I worried that if I hollow them out, then I'll be right back to where I was before with an exhasut sound I don't like and $100 thrown away.

    What do you guys think. This car has me all messed up. I got away from Mustangs thinking these were cheaper, faster and easier to work on. So far, none of those are true for me. I hope someone can shed some light on this and show me that these are some BADASS machines.

    THANKS.
    98' SS convertible
    #1730 6spd. Red

  2. #2
    Member jag42420's Avatar
    Join Date
    Aug 2006
    Location
    Kentucky
    Age
    43
    Posts
    525

    Silver
    2002 WS6 Trans Am

    [QUOTE=KIXASS;1082321]I got away from Mustangs thinking these were cheaper, faster and easier to work on. So far, none of those are true for me. [QUOTE]

    P1133 o2 Insufficient switching bank 1 sensor 1
    P1153 02 Insufficient switching bank 2 sensor 1
    P1416 Secondary AIR system bank 2

    First off, shorties are not a decent power gainer, and may not even flow as well as the stock manifolds did. You really need long tubes to get any decent gains. Second, Flowmasters don't flow well on LS1s, they do much better on a Mustang. With the LS6 intake swap, a tune would help you free up a few ponies, I'm guessing 10-15 as you are now. Before tuning, I'd suggest long tubes, stickier tires and a cam. A tune would be much more beneficial then.

    What kind of Mustang are you used to running that low 13s stock LS1s are not faster than?

  3. #3
    United States Marine Kamauxx's Avatar
    Join Date
    May 2007
    Location
    Kansas City, MO
    Age
    35
    Posts
    382

    Blazen Orange Metallic
    2006 GTO

    You'd probably put down about 325-330 on the dyno, which means nothing IMHO...if you want to see how fast your car is, drive the car fast!

  4. #4
    Member
    Join Date
    Feb 2007
    Location
    austin
    Posts
    524

    Black/Black
    '00 Firebird WS6 T/A

    Quote Originally Posted by KIXASS View Post
    Right now (to the best of my knowledge) my car has the stock tune with the following mods:
    BBK 80mm throttle body
    LS6 intake
    Edelbrock shorty headers
    No name HI-FLOW (suppose to be) catalytic convertors
    Stainless Works 2.5" Y-pipe
    3" cat-back with single-in/single-out Flowmaster Super44 muffler
    4.10 gears
    SLP lid
    K&N filter
    ram air mod
    throttle body coolant by-pass

    I tries to put on a descreened p/p mass air, but it ran like shit and the SES light came on. So I went out and bought a new MAF and installed it.

    I was saving for a cam set-up and install. I was going to have them dyno tune it then. Right now the car idles fine and cruises fine, but when you mash the gas it feels like something is holding it back. It just don't pull as hard as I think it should, especially with the 4.10's.

    I did pull 3 codes and they were P1133, P1153 & P1416. When I got the car from the previous owner, it had hollowed out stock cats with a SLP LM2 exhaust. Then it seemed to pull a lot harder up top than it does now. I ended up replacing them with a set of (no-name)Hi-flows off ebay and changing out the nasty sounding SLP loundmouth 2 system. I'm starting to think that maybe these cats aren't as "HI-FLOW" as they say they are. I worried that if I hollow them out, then I'll be right back to where I was before with an exhasut sound I don't like and $100 thrown away.

    What do you guys think. This car has me all messed up. I got away from Mustangs thinking these were cheaper, faster and easier to work on. So far, none of those are true for me. I hope someone can shed some light on this and show me that these are some BADASS machines.

    THANKS.
    3 words: CLEAN YOUR MAF. That K&N has been spewing oily goop all over it since you bought the car. If you're losing power up top, clean the damn thing off and then see how things go. If you are running a stock size maf, go back to the stock size TB... at least in my understanding of the issue you're just creating a bottleneck that doesn't produce any gains by running a bigger TB.

  5. #5
    Fairies Drive Imports camaro_five0's Avatar
    Join Date
    Apr 2006
    Location
    Clarksville, TN
    Age
    34
    Posts
    176

    Sunset Orange Metallic
    2002 Camaro SS M6

    Well as a reference, I have all the same bolt-ons you have minus the throttle body and 4.10 gears, but I have longtube headers instead of shorties along with a 3" catted y. I had a baseline of 326hp and 344 lb/ft of torque. After the tune I ended up with 338hp and 356 lb/ft of torque.

  6. #6
    Junior Member KIXASS's Avatar
    Join Date
    Oct 2006
    Location
    MARYLAND
    Posts
    97
    Good info.

    Would you happen to have a dyno sheet you could post or email me? I would like to see how/where the power increase was. I see what it made peak, how about through the rpm range.

    Cams must do wonders for these cars, because I would love to hit 400rwhp and by the look of things (yours and others dyno) you would have to make like 70+ rwhp. I can't see a cam making that alone with out head work although many people reach the 400rwhp mark.

    How much do you think my shorty headers are holding me back compared to longtubes? I only have a 2.5" Y-pipe. I want the longtubes, but have a hard time justifying the cost + time to mereley gain a couple of hp. I would if the gains were quite noticeable though.

  7. #7
    Fairies Drive Imports camaro_five0's Avatar
    Join Date
    Apr 2006
    Location
    Clarksville, TN
    Age
    34
    Posts
    176

    Sunset Orange Metallic
    2002 Camaro SS M6

    If you want 400+ hp, you can get it out of a cam alone. A friend of mine put the T-Rex cam in his 01 Z28 and made 412hp with it...just cam and bolt-ons! Stock heads with no work done to them. The cam is really the only thing holding these cars back. GM put a truck cam in them from the factory to under-rate the LS1 in the F-bodies so that the Corvette would have the upper hand in performance.

  8. #8
    used and abused at wot ibanez7's Avatar
    Join Date
    Aug 2005
    Location
    Crystal Lake IL
    Age
    40
    Posts
    2,517

    Pewter
    2001 Camaro Z28 M6

    the cats, shorty headers and the 2.5 Y-pipe are definitely holding your car back.

    shorty headers are the equivalent of factory headers, the 2.5" y is pointless if you header scavenger is 3" and your I pipe is 3"

    ditch the cats. A tune can delete any codes that might throw off an emission test.

    With bolt-on long tube headers, no cats, and the SI5 cam from speed inc, I dyno 432rwhp. I also passed emissions.

    As far as the LM2 exhaust sounding like crap. Hang on to it, because they sound and flow great in cammed cars. My car sounds mean, and fast with the lm2 and a cam.

  9. #9
    www.eautocad.com
    Join Date
    Oct 2007
    Location
    FL
    Posts
    257

    Silver
    1998 Camaro Z28

    why am i only dyno'd at 347 rwhp with a comp cam 224-581, ported throttle body and intake manifold, mid length headers, magnaflow 80 series dual exhaust H setup, K&N and Lid, ram air mod, egr mod, and TB coolant mod? It seems like I should have more than 347. I also have a 3400 stall and positrac

    Is the 224-581 com cam by lingenfelt not that agressive? You can't really hear my car lobe much, it idles really smooth and unless you have a trained ear you can't even tell its cammed.

  10. #10
    Fairies Drive Imports camaro_five0's Avatar
    Join Date
    Apr 2006
    Location
    Clarksville, TN
    Age
    34
    Posts
    176

    Sunset Orange Metallic
    2002 Camaro SS M6

    1.) It could be you have a very small, ineffective cam. What's the LSA? 114?
    2.) Automatic transmissions always dyno less than a manual. You'll get a lower horsepower numbers but make up for it with smoother shifts during a race.
    3.) Did you use a Mustang dyno? They put out lower numbers than a Dynojet.

    Oh, and since you have a '98, an LS6 or FAST intake is a must.

  11. #11
    Member jag42420's Avatar
    Join Date
    Aug 2006
    Location
    Kentucky
    Age
    43
    Posts
    525

    Silver
    2002 WS6 Trans Am

    Quote Originally Posted by eautocad View Post
    I also have a 3400 stall and positrac
    Your stall will reduce your dyno numbers. Dyno is crap, only good for tuning. What you're looking for is better ETs. The LS6 intake would probably boost you 15-20HP with your cam.
    2002 WS6 Trans Am, A4, SLP lid, P&P TB, 3500 stall, 24K GVW tranny cooler, HPTuners, Pacesetter LTs, Bassani dual exhaust with 'x' crossover, coolant bypass, sealed airbox to hood.

    http://www.cardomain.com/id/jag42420

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Custom tune, HP tuners, or PCMFORLESS TUNE
    By cancam99ss in forum Computer & Tuning
    Replies: 19
    Last Post: 09-29-2012, 10:09 PM
  2. Question: Frost tune or Dyno tune?
    By 90ARAPAJ in forum Firebird / WS6
    Replies: 10
    Last Post: 04-15-2012, 01:38 PM
  3. hypertech tune erase my dyno tune?
    By Z28LS1 in forum Computer & Tuning
    Replies: 3
    Last Post: 02-02-2009, 07:31 PM
  4. whats the diff with a full dyno tune and a street tune?
    By Justin23454 in forum Computer & Tuning
    Replies: 6
    Last Post: 12-04-2007, 07:31 AM
  5. Handheld Tune?shop Tune? software running on my laptop tune?on my SS
    By showtimesteele99SS in forum Computer & Tuning
    Replies: 4
    Last Post: 04-09-2007, 06:31 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •