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5.3 vs Hemi thread in the racing forum

   
Old Oct 11, 2005 | 09:13 AM
  #21  
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Originally Posted by Jrgnd
Well if take your 345 HP Chevy and match it to a B&G custom tuned PCM Hemi(currently the only folks offering custom tuning) and start adding mods you will be suprised. Rumor is they made 40-60 HP at the crank from a stock truck. A bit hard for me to believe but if you take into account that the Hemi barely pass emissions, I.E. de-tuned to pass, than is more believable.
Avsfan on another site went whole hog and installed a stand-alone Tec3 computer and tranny controller. Comparing his dyno runs to another STS turbo truck he made an additional 60hp and 70trq to the wheels. This points towards what we thought for awhile, the PCM tuning is WAAAY conservative to help meet the 7/70 powertrain warranty. BTW, Dodge is changing the warranty in 2006 to 3/36. Also a good confirmation is how they rate the crank HP at 345 and most chassis dyno runs get 260 to the wheels. That is a ton of drivetrain loss.
The programmers are showing gains of 20 HP or so average with some peaks of 30 HP at certain RPMs. Again if we could get full control of the operating parameters we could hope to see gains like Avsfan did ( but not at the high cost of a stand-alone and installation ).
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Old Oct 11, 2005 | 09:31 AM
  #22  
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Its all about the "what if"
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Old Oct 11, 2005 | 10:13 AM
  #23  
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Originally Posted by ColtSteele
I picked up about 60rwhp from a cam and a custom tune on a 2nd gear dyno with the new torque converter (that is proven to show hp loss on the dyno). Guesstimates (since they couldn't get her to hold 3rd) are closer to 70-75rwhp in a 3rd gear 1:1 run. Made 314rwhp on the dyno on that 2nd gear run on 22's. Talked to the company that did the tune they say closer to 330-340rwhp. I should get it back around Halloween- then we'll redyno to see what I find.
what are you getting done...or is it a secret!
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Old Oct 11, 2005 | 12:20 PM
  #24  
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Its all about the "what if"
Not if anymore- It's when (it's released)

what are you getting done...or is it a secret!
if I could tell, I would (I'm bound by a nondisclosure agreement right now)
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Old Oct 13, 2005 | 12:25 PM
  #25  
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Originally Posted by ColtSteele
Not if anymore- It's when (it's released)


if I could tell, I would (I'm bound by a nondisclosure agreement right now)
Is the B&G the secret?Is it snake oil all over again with big promisis?
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Old Oct 13, 2005 | 12:46 PM
  #26  
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You guys need to go post some more on that 5.3 vs. hemi thread. There are a few chevy ****** that could use a nice *** kicking.
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Old Oct 13, 2005 | 12:50 PM
  #27  
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I would love to race you in my 4x4 xcab,it would be a good race.If you want to race a N/A 5.3 RCSB you are about a second slow.
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Old Oct 13, 2005 | 12:57 PM
  #28  
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Originally Posted by gonzo 6.0
I would love to race you in my 4x4 xcab,it would be a good race.If you want to race a N/A 5.3 RCSB you are about a second slow.
I wasn't calling you a chevy *****. There are just a few guys that no matter what say CHEVY, CHEVY, CHEVY. I am a big fan of all trucks...ford, chevy, dodge, GMC, etc...I just dont appreciate the peole that say "dodge sucks", but then dont give a reason why. Thats like complaining, but not doing anything to fix the problem. If someone has a problem with dodge, then at least tell me why...I am just upset. I'm sorry if you took offense to what I said.

And I wish Dodge had your kind of aftermarket...Until we learn how to tune these Hemi's, we arn't going to get much faster without a buttload of spray.
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Old Oct 13, 2005 | 01:09 PM
  #29  
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Im like you I like the friendly competition,cant really knock dodge, a lot of people are dam happy with them
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Old Oct 13, 2005 | 01:20 PM
  #30  
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Gonzo, you gonna have to explain that second slow remark, mjfick and I run very close times and I crucify 95% of the 5.3's that I run across and those that outrun me are more than a few mods......
TJ
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