Power Programer for LT4
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From: Groveland CA
Power Programer for LT4
What about the Hypertech Power Programer for an LT4.
Current options; K&N w/open lid, 1000 CFM MAFS, Two Chamber Flows w/stock Resonator and exhaust manifolds.
Good, BAD or UGLY???
Opinions PLEASE.
Current options; K&N w/open lid, 1000 CFM MAFS, Two Chamber Flows w/stock Resonator and exhaust manifolds.
Good, BAD or UGLY???
Opinions PLEASE.
Le Mans Master
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Re: Power Programer for LT4 (John Ruy)
Ugly. First off I don't think they make one for LT4, and second off even if they did it would be of little benefit on an LT4. The engine power tuning feature of the HPP is dodgy at best. Guys that have cars with automatic transmissions can benefit from the HPP's shift firmness increase option, though.
I would recommend http://www.pcmforless.com for custom tuning
I would recommend http://www.pcmforless.com for custom tuning
Race Director
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From: Stafford, Virginia Kittah, Kittah, Kittah...
Re: Power Programer for LT4 (Lone Ranger)
Ugly. First off I don't think they make one for LT4, and second off even if they did it would be of little benefit on an LT4. The engine power tuning feature of the HPP is dodgy at best. Guys that have cars with automatic transmissions can benefit from the HPP's shift firmness increase option, though.
I would recommend http://www.pcmforless.com for custom tuning
I would recommend http://www.pcmforless.com for custom tuning
I have one and I only use it for turning the fans on earlier... Other than that I wouldn't have one... I bought it a long time ago for my Trans Am, and it works with the LT1 and LT4... If it wasn't for the fan function, I'd get rid of it...
Le Mans Master
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From: Phoenix AZ
Re: Power Programer for LT4 (John Ruy)
They do make a specific one for the LT4 that's different from the 1996 LT1 version...however I personally think that it is a waste of money. It really doesn't do anything for power, it can turn on the fans earlier and re-program for different rear-end gears, but I don't think either of those options is worth the $300-350 they charge for it.
On a side note, I see that you put larger MAF screens on...you might want to hook your car up to a scanner (such as AutoXRay) to see what your fuel trims are. Larger MAF screens have a tendency of throwing that off, you can get a MAF translator as a temporary fix, but the best thing to do would be to dynotune it. :cheers:
On a side note, I see that you put larger MAF screens on...you might want to hook your car up to a scanner (such as AutoXRay) to see what your fuel trims are. Larger MAF screens have a tendency of throwing that off, you can get a MAF translator as a temporary fix, but the best thing to do would be to dynotune it. :cheers:
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From: Groveland CA
Re: Power Programer for LT4 (Zix)
So why does it say? ; "Precise tuning optimizes engine speed from off-idle to redline for maximum power and performance."
As for the MAFS, it's the MID AMERICA DESIGN housing ends and directional air foil. They "CLAIM" 1000 CFM. It's not installed yet.
Should I send that back and go for the custom PCM???
As for the MAFS, it's the MID AMERICA DESIGN housing ends and directional air foil. They "CLAIM" 1000 CFM. It's not installed yet.
Should I send that back and go for the custom PCM???
Le Mans Master
Joined: Aug 1999
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From: WilkesBarre PA
Re: Power Programer for LT4 (John Ruy)
I had one for the GS to lower the fan settings, adjust for the 4:10s and raise the rev limiter. I used the program and went slower at the track than with the stock program.
Le Mans Master
Joined: Feb 2002
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Re: Power Programer for LT4 (John Ruy)
So why does it say? ; "Precise tuning optimizes engine speed from off-idle to redline for maximum power and performance."
As for the MAFS, it's the MID AMERICA DESIGN housing ends and directional air foil. They "CLAIM" 1000 CFM. It's not installed yet.
Should I send that back and go for the custom PCM???
Should I send that back and go for the custom PCM???
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Bench Racer
Joined: Feb 2003
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From: Palm Beach Gardens FL
St. Jude '03 thru 14,'25
Re: Power Programer for LT4 (John Ruy)
If you want a copy of the Hypertech PPIII manual to see exactly what you can and can not do, let me know and I'll email it to you. I previously had scanned mine and converted it to a PDF file for another CF member...
[Modified by tobijohn, 4:51 PM 3/7/2004]
[Modified by tobijohn, 4:51 PM 3/7/2004]
Le Mans Master
Joined: Jul 1999
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From: Phoenix AZ
Re: Power Programer for LT4 (John Ruy)
So, What about the "Predator"? "Engineered to raise hell" :reddevil
Good, Bad or Ugly???
Good, Bad or Ugly???
[Modified by Zix, 5:31 PM 3/7/2004]
Le Mans Master
Joined: Oct 2002
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From: Bahston Mass.
Re: Power Programer for LT4 (tobijohn)
John, I'd be interested in that doc too, if it'd also apply to a '95LT1?
The other thing I was wondering, John Ruy, was what was on the back end of your car?? I can't quite make it out by the picture?
Your car looks GREAT though
:cheers:
The other thing I was wondering, John Ruy, was what was on the back end of your car?? I can't quite make it out by the picture?
Your car looks GREAT though
:cheers:
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From: Groveland CA
Re: Power Programer for LT4 (Jbaker)
[IMG][/IMG] http://temp.corvetteforum.net/c4/johnruy/335_35_17.jpg [IMG][/IMG]
Why tha be a "trailer hitch". Had to have a way to get the bass boat down to the lake. :cheers:
Why tha be a "trailer hitch". Had to have a way to get the bass boat down to the lake. :cheers:
Le Mans Master
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From: Bahston Mass.
Re: Power Programer for LT4 (John Ruy)
[IMG][/IMG] http://temp.corvetteforum.net/c4/johnruy/335_35_17.jpg [IMG][/IMG]
Why tha be a "trailer hitch". Had to have a way to get the bass boat down to the lake. :cheers:
Why tha be a "trailer hitch". Had to have a way to get the bass boat down to the lake. :cheers:
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From: Groveland CA
Re: Power Programer for LT4 (Jbaker)
[IMG][/IMG] http://temp.corvetteforum.net/c4/johnruy/335_35_17.jpg [IMG][/IMG]
I've never seen one, chrome - looks good! :thumbs:
I've never seen one, chrome - looks good! :thumbs:
Back to the programer. The maual should probably apply to your '95. You would have to order the LT1 model. I havn't decided if I'm going this route yet. But I'm wondering if the level of modification has a lot to do with the results.
Is it that, being basically stock I can see improvements. However, if I were to go with more exhaust and intake mods, would the pre-programed tune not be as effective? :confused:
Le Mans Master
Joined: Oct 2002
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From: Bahston Mass.
Re: Power Programer for LT4 (John Ruy)
John , it's just the way the light's hitting it.Looked chrome. Sorry. I'll adjust my monitor.
Anyways, I think the general opinion around here is that unless you need it for speedo calibration from a gear swap, or want to reprogram your fans, then don't expect any "performance" gains from it. That's what changed my mind. It really has little, or no benefit to my 6 spd other then those two things. :nonod:
[Modified by Jbaker, 5:29 PM 3/7/2004]
Anyways, I think the general opinion around here is that unless you need it for speedo calibration from a gear swap, or want to reprogram your fans, then don't expect any "performance" gains from it. That's what changed my mind. It really has little, or no benefit to my 6 spd other then those two things. :nonod:
[Modified by Jbaker, 5:29 PM 3/7/2004]
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From: Groveland CA
Re: Power Programer for LT4 (Jbaker)
I should probably do the Camber Brace then...
Given that I want to tuck 285's under the front end to pair up with the 335's on the rear. That be where my money should go. ;)
Given that I want to tuck 285's under the front end to pair up with the 335's on the rear. That be where my money should go. ;)
Le Mans Master
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From: Bahston Mass.
Re: Power Programer for LT4 (John Ruy)
I should probably do the Camber Brace then...
Given that I want to tuck 285's under the front end to pair up with the 335's on the rear. That be where my money should go. ;)
Given that I want to tuck 285's under the front end to pair up with the 335's on the rear. That be where my money should go. ;)
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From: Groveland CA
Re: Power Programer for LT4 (Jbaker)
Those 335's don't stick out as far as I thought they would - nice fat meats, too!!
How are 285's on the front fro clearance?