C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

3 pulls for $250-DYNO

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Old May 2, 2016 | 02:50 PM
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Default 3 pulls for $250-DYNO

So I've got a local guy that will install a modified "open air box/filter" and do 3 dyno pulls/with adjustments for $250. Says it's a "deal" for me..Is this a deal?
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Old May 2, 2016 | 03:28 PM
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You dont need adjustments for an air filter can he tune OBD 1 cars?
Havent been on a dyno in a long time hard to say on price
Never saw the sense in 3 runs personally oh well.

Id say get someone to help you put the air lid on skip the dyno wait til you get some parts on there that make a bigger difference...or if theres a track pay $30 and have a blast making passes. WAY more fun
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Old May 2, 2016 | 06:51 PM
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Originally Posted by cuisinartvette
You dont need adjustments for an air filter can he tune OBD 1 cars?
Havent been on a dyno in a long time hard to say on price
Never saw the sense in 3 runs personally oh well.

Id say get someone to help you put the air lid on skip the dyno wait til you get some parts on there that make a bigger difference...or if theres a track pay $30 and have a blast making passes. WAY more fun
Yes-he does LT1 motors with OBD port. Thought the same things-as far as-what can he possibly adjust with just an air cleaner. Timing, air/fuel..Hmm? Thanks for the reply
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Old May 2, 2016 | 07:28 PM
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If you don't have any other mods(at least headers)then I would skip the tuning.
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Old May 2, 2016 | 08:18 PM
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$25 for Wednesday night drags at Sonoma. 4+ time runs and eliminations and a lot of fun.
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Old May 2, 2016 | 09:09 PM
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Originally Posted by 383vett
$25 for Wednesday night drags at Sonoma. 4+ time runs and eliminations and a lot of fun.
Now that sounds like a good deal !
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Old May 2, 2016 | 11:04 PM
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Originally Posted by ronniev
So I've got a local guy that will install a modified "open air box/filter" and do 3 dyno pulls/with adjustments for $250. Says it's a "deal" for me..Is this a deal?
Hell no. For a set of tin snips, you can cut the air box out and get as much as he can out of the run. I guess on the form at the shop, you would list your name as Ben? As in Ben Dover?
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Old May 3, 2016 | 02:30 AM
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Old May 3, 2016 | 10:11 AM
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Originally Posted by aklim
hell no. For a set of tin snips, you can cut the air box out and get as much as he can out of the run. I guess on the form at the shop, you would list your name as ben? As in ben dover?
thanks
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Old May 3, 2016 | 10:28 AM
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Originally Posted by ronniev
Yes-he does LT1 motors with OBD port. Thought the same things-as far as-what can he possibly adjust with just an air cleaner. Timing, air/fuel..Hmm? Thanks for the reply
The ECM controls the timing as well as the A/F mixture. OBD1 cars use a chip that can be replaced with another. A good tuner will do some datalogging and from that data, burn another chip that would be installed into the ECM. Unless this guy has that capability, the dyno pulls will not do much of anything. Did he tell you exactly what will be accomplished by the dyno pulls? What gets changed and how it will be done? What are the anticipated HP/Torque numbers?

You can buy open lid air cleaners and install one yourself, or as mentioned, use some tin snips and cut an opening in your air filter lid. As far as the cost of 3 dyno pulls, IMHO, that is pretty high.
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Old May 3, 2016 | 12:16 PM
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Originally Posted by c4cruiser
The ECM controls the timing as well as the A/F mixture. OBD1 cars use a chip that can be replaced with another. A good tuner will do some datalogging and from that data, burn another chip that would be installed into the ECM. Unless this guy has that capability, the dyno pulls will not do much of anything. Did he tell you exactly what will be accomplished by the dyno pulls? What gets changed and how it will be done? What are the anticipated HP/Torque numbers?

You can buy open lid air cleaners and install one yourself, or as mentioned, use some tin snips and cut an opening in your air filter lid. As far as the cost of 3 dyno pulls, IMHO, that is pretty high.
Thank you. yes-with a stock motor, I have no idea and didn't get the details. It's a very reputable and well known LT1 performance shop here in Minny, but don't want to list the name as I don't want any bad PUB for them if that was a high price. He just offered it to me if I wanted it!
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Old May 3, 2016 | 03:51 PM
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Originally Posted by bow tie guy
That's not true 1994 LT1 OBD1 uses a re-writeable PCM no "chip"
The OP didn't specify a year so that's why I said that.
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Old May 3, 2016 | 08:28 PM
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Originally Posted by c4cruiser
The OP didn't specify a year so that's why I said that.
94 vert
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Old May 4, 2016 | 04:16 PM
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Originally Posted by ronniev
So I've got a local guy that will install a modified "open air box/filter" and do 3 dyno pulls/with adjustments for $250. Says it's a "deal" for me..Is this a deal?
All the replies are boiling down to this: What exactly does this guy mean by "adjustments"?

$250 may be a deal if he is tuning your ECM and he knows what he is doing. If he is not doing a tune, walk away and spend your money elsewhere.

The factory engineers put a pretty good stock tune on the stock setup, and an open airbox is not a big modification. So if you want to do this deal with this guy, you might consider adding a few more bolt-on parts first, then the deal will be more worth your while.
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Old May 4, 2016 | 04:45 PM
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Dyno-tuned chips are not usually so cheap if he knows what he is doing.
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Old May 4, 2016 | 08:21 PM
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Sounds like the guy is trying to make an easy buck. Save your money
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Old May 5, 2016 | 01:36 PM
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I'm going to skip this "DEAL" for now. Thanks everyone.
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