Which tuners have CP testing equipment - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 62 (permalink) Old 08-20-2009, 01:49 AM Thread Starter
 
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Which tuners have CP testing equipment

I am curious as to which tuners have cylinder pressure testing equipment. If a tuner has no such equipment then how do you know if your tuning exceeds safe CP limits. This is a question for the businesses that market aftermarket tuning. Knowing who has what is important for a prospective buyer.

Some of the companies that come to mind are Swamps, DP-Tuner, DI, Gearhead Automotive, PHP, TS, Tony Wildman and others. I am not intentionally leaving any others out, these were what came to mind.

Last edited by M&R1; 08-20-2009 at 01:54 AM.
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post #2 of 62 (permalink) Old 08-20-2009, 02:10 AM
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I know Swamps and DP Tuner have the stuff.

I'd be willing to bet Bill Cohran at Power Hungry has it, along with TS Performance. If David doesn't have it I'd be surprised.

Matt at Gearhead and Tony I'm not sure about, but I've never heard of anyone having issues with their tuning so...

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post #3 of 62 (permalink) Old 08-20-2009, 02:18 AM
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That's very expensive equipment. The more sensors, the more money.

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post #4 of 62 (permalink) Old 08-20-2009, 02:19 AM Thread Starter
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Quote:
Originally Posted by John_DeereGreen View Post
I know Swamps and DP Tuner have the stuff.

I'd be willing to bet Bill Cohran at Power Hungry has it, along with TS Performance. If David doesn't have it I'd be surprised.

Matt at Gearhead and Tony I'm not sure about, but I've never heard of anyone having issues with their tuning so...
I am not referring to who has had issues. The question is; if you do not have CP testing equipment then how do you know if your tunes are within safe cylinder pressure limits.
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post #5 of 62 (permalink) Old 08-20-2009, 04:19 AM
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Jonathan from swamps live tuned my truck with CP test equipment last weekend. I was very impressed with what he could tell with it. I think it is very importank when you are trying to make the kind of power I am with a stock engine, but with a milder combonation, I think all of these tuners have been around 7.3's long enough to know what safe levals are and what it sounds like if something is wrong, there were a few times when we tryed some stuff that didn't work and he whould tell me to get out of the throttle right away, I usually could tell something was wrong before he had to say anything.

FYI one of jonathan's cylinder pressure sensors quite while we were working on my truck, I think he said it was about a $1000 sensor, luckaly thought it was under warrenty and he had a spaire

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post #6 of 62 (permalink) Old 08-20-2009, 05:56 AM
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So Ross, what kind of pressures did you guys see?

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post #7 of 62 (permalink) Old 08-20-2009, 12:03 PM
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IIRC,Tadd At Elite had it.

I would think the big companies probably have it, but I don't know for sure.

It really doesn't matter who has it, its who is having it done to ensure their motors are dialed in correctly. This means making sure tunes and mods mesh together, Not only the tunes having safe CP's or not. The testing show many aspects of the engine tuning. One thing is temps of the cylinder. This allows us to verify the temps in the cylinder to see how they match with the EGT gauge installed in the truck. This will tell us if the EGT gauge is actually reading true temps.

When we receive our updated equipment back EA tuning will be offered at a new price of $750 Plus purchase of any damaged sensors. Hopefully this will allow more serious modders to step up and make sure their trucks are dialed in after spending money on an expensive engine build. This will be in addition to live tuning and not part of it.


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post #8 of 62 (permalink) Old 08-20-2009, 12:36 PM
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Quote:
Originally Posted by M&R1 View Post
I am not referring to who has had issues. The question is; if you do not have CP testing equipment then how do you know if your tunes are within safe cylinder pressure limits.
I understand that. Just saying they're tuning some VERY big name trucks without any issues, and one of them tuned a VERY heavily modified truck after Swamps and the owner said there was a night and day difference.

To each their own. I'll take tuners that trust instinct and sound just as fast as ones with high dollar equipment that I can't afford the testing with.

Good thread, by the way.

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post #9 of 62 (permalink) Old 08-20-2009, 01:01 PM
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Quote:
Originally Posted by John_DeereGreen View Post
I understand that. Just saying they're tuning some VERY big name trucks without any issues, and one of them tuned a VERY heavily modified truck after Swamps and the owner said there was a night and day difference.

To each their own. I'll take tuners that trust instinct and sound just as fast as ones with high dollar equipment that I can't afford the testing with.

Good thread, by the way.
So to answer his question, you don't know.

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post #10 of 62 (permalink) Old 08-20-2009, 01:17 PM
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Quote:
Originally Posted by John_DeereGreen View Post
I'll take tuners that trust instinct and sound just as fast as ones with high dollar equipment that I can't afford the testing with.

Good thread, by the way.
Instinct? No tuner alive tunes on instinct.

Experience, yes.

Sound, maybe.

Some of them tune as well without the "high dollar equipment" installed on the truck as they do with it installed, because they have learned what to look for and know what works using that equipment.

I think we'll see even more tuners investing in testing equipment as advances continue to be made in the diesel performance industry.

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