SC392 630HP on a stock ECU - Page 3 - Dodge Challenger Forum: Challenger & SRT8 Forums
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#21 (permalink) Old 12-19-2012, 07:39 PM
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Originally Posted by gasgonewild View Post
Honestly the HP is pretty hard to believe. The only other vortech on a 392 6 speed with 6 psi did 530 rwhp with an Arrington tune. Not saying it is impossible, but it seems very odd to me.
Was the Arrington one a factory 392 or a 5.7 or 6.1 stroked and poked? The heads and cam in the 392 make a difference plus the B&G tune is more refined across the board. With Dave Kasper from B&G working with Arrington just for a short time he has already added 30HP to their 2010 ECU swap SC tune on the 392 which would bring it into the 610-620 range. As I said in the original post the tuner said the gains are almost identical to what he sees on the Vette's that he installs a Vortech kit on.

Anyhow I'm not wrapped up in dyno numbers. 1/4 miles times mean much more to me.

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#22 (permalink) Old 12-19-2012, 07:44 PM
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Quote:
Originally Posted by Red Barron View Post
Was the Arrington one a factory 392 or a 5.7 or 6.1 stroked and poked? The heads and cam in the 392 make a difference plus the B&G tune is more refined across the board. With Dave Kasper from B&G working with Arrington just for a short time he has already added 30HP to their 2010 ECU swap SC tune on the 392 which would bring it into the 610-620 range. As I said in the original post the tuner said the gains are almost identical to what he sees on the Vette's that he installs a Vortech kit on.

Anyhow I'm not wrapped up in dyno numbers. 1/4 miles times mean much more to me.
i have an arrington tuned 392 and even if Dave added 30HP to it it would still be sub 600.

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#23 (permalink) Old 12-19-2012, 07:45 PM
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Quote:
Originally Posted by Red Barron View Post
Was the Arrington one a factory 392 or a 5.7 or 6.1 stroked and poked? The heads and cam in the 392 make a difference plus the B&G tune is more refined across the board. With Dave Kasper from B&G working with Arrington just for a short time he has already added 30HP to their 2010 ECU swap SC tune on the 392 which would bring it into the 610-620 range. As I said in the original post the tuner said the gains are almost identical to what he sees on the Vette's that he installs a Vortech kit on.

Anyhow I'm not wrapped up in dyno numbers. 1/4 miles times mean much more to me.
Factory 392. I hear ya, can't wait to see some track times from you.
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#24 (permalink) Old 12-19-2012, 07:50 PM
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Congrats RB. Very nice numbers, should be a handful at the strip!! Can't wait to see what it does. Welcome to the world of boost



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#25 (permalink) Old 12-19-2012, 07:52 PM
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#26 (permalink) Old 12-19-2012, 08:20 PM
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i have an arrington tuned 392 and even if Dave added 30HP to it it would still be sub 600.
No two dynos are the same. I guess running out of fuel at 630HP should be some indication the numbers are close based on what the fuel delivery system is rated for. Another thought is you could drive to Austin and we could tie down to the same dyno. However a boost reading might also help clarify, either way I'm happy driving the car boosted even if the dyno would have said 550. The real success story is that B&G can tune stock ECU cars for boost today!
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#27 (permalink) Old 12-19-2012, 08:36 PM
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You are going to have your hands full. Mine is close to 550 and is scary fun on the street, stay safe.
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#28 (permalink) Old 12-19-2012, 11:05 PM
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First off congrats on the car and the added power. I hope you get out to a few challenger friendly events to see what it can do.

However, something just doesn't add up for me based on what is posted. A stock 392, with a BAP, and SRT4 injectors and a Vortech V (3?) at 6-8 lbs? Long tubes are not typically a power adder and with only 6-8 lbs of boost I've been led to believe there is no added power and it may decrease HP on low boost applications. ( I could be wrong) Catbacks and hi flow cats wont add much either but sure sounds better.The same with 90mm TB's. If they don't cause issues they won't add much for a low boost application. And a pain in the butt to tune. (i've been through 2 of them so farand back to stock TB)

I just don't see a way for a tune to add 50-70 more HP than what is normal on our cars. I could understand a difference in tuning of 10%, heck even 20%. But a 50% gain in HP from tuning. It just sounds too good to be true. (I based the increase on Vortech and Procharger stating up to a 150 HP increase on the Challengers) I don't believe our tunes were that poorly done over the last several years so finding a 30%+ increase in HP would require something magical in my opinion.

Did you have a baseline on that dyno before the work was done? That is the only thing I base my mods on when on the dyno. I stay with the same dyno for any work, so I can gauge results better. There are no stingy dynos in my opinion. It's bollacks! Its improvement from baseline that should be a key indicator.

Saying that it was a stingy dyno is like a short guy standing on his tiptoes to say he was taller than he is.

I'm glad you like the results and like others have said already, you will want to address the drive train and fuel system regardless of what Vortech wants.

Cheers

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#29 (permalink) Old 12-19-2012, 11:38 PM
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Originally Posted by Mopar muscle 73 View Post
First off congrats on the car and the added power. I hope you get out to a few challenger friendly events to see what it can do.

However, something just doesn't add up for me based on what is posted. A stock 392, with a BAP, and SRT4 injectors and a Vortech V (3?) at 6-8 lbs? Long tubes are not typically a power adder and with only 6-8 lbs of boost I've been led to believe there is no added power and it may decrease HP on low boost applications. ( I could be wrong) Catbacks and hi flow cats wont add much either but sure sounds better.The same with 90mm TB's. If they don't cause issues they won't add much for a low boost application. And a pain in the butt to tune. (i've been through 2 of them so farand back to stock TB)

I just don't see a way for a tune to add 50-70 more HP than what is normal on our cars. I could understand a difference in tuning of 10%, heck even 20%. But a 50% gain in HP from tuning. It just sounds too good to be true. (I based the increase on Vortech and Procharger stating up to a 150 HP increase on the Challengers) I don't believe our tunes were that poorly done over the last several years so finding a 30%+ increase in HP would require something magical in my opinion.

Did you have a baseline on that dyno before the work was done? That is the only thing I base my mods on when on the dyno. I stay with the same dyno for any work, so I can gauge results better. There are no stingy dynos in my opinion. It's bollacks! Its improvement from baseline that should be a key indicator.

Saying that it was a stingy dyno is like a short guy standing on his tiptoes to say he was taller than he is.

I'm glad you like the results and like others have said already, you will want to address the drive train and fuel system regardless of what Vortech wants.

Cheers
My first dyno run was in Dallas and I live in Austin so that wasn't going to happen. Like I have said the dyno guy installs Vortechs on Vett's all the time and said he typically see's 200 HP gain which is right about where I was at. The injectors are the Stage 2 SRT4 which are rated at 67lbs and up to 73lbs on a 59lb pump. But the good thing was I found out that I was running out of fuel at 6K.

I have a friend that had his R/T on the same dyno, I will see what his results were. From memory I believe it was in the 340 range which is a tuned car with long tubes, CAI, and catback.
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#30 (permalink) Old 12-19-2012, 11:53 PM
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When do you plan to take her to the track? With that rwhp high 10s@125+ should be no problem

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