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 > Retuning diesel motor for more torque and hp

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Gibsenca

California

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Posted: 01/24/18 10:23am Link  |  Quote  |  Print  |  Notify Moderator

I have a 2013 Serrano FRED with the Max Force 7 engine on a Workhors WD22 Chasis. Overall I’ve been very happy with this setup except when it comes to climbing. Even on small grades the max speed drops to 35 mpg or below. This motor is tuned to 230 hp and around 560 lb-ft torque. The motor can be tuned to 300 hp. So I am considering having it tuned to 260 hp and 660 lb-ft. I am wondering if there are any drawbacks I need to consider. I am not trying to win any races here just get up an over the grades easier.

janstey58

Glenwood, IA

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Posted: 01/24/18 10:47am Link  |  Quote  |  Print  |  Notify Moderator

You need to consider if the transmission is up to the challenge of the new HP and Torque?


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BurbMan

Islip, Long Island

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Posted: 01/24/18 10:53am Link  |  Quote  |  Print  |  Notify Moderator

Transmission and rear axle...also fuel economy. Engineers will tune an engine for a specific application to achieve a balance of economy, performance, and longevity. If yours is de-tuned it's important to find out why....it could be that it's tuned to the max input rating for other parts of the drivetrain or simply to get decent fuel economy.

Not saying you shouldn't re-tune for more power, but understand first what else you are affecting.


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ScottG

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Posted: 01/24/18 10:54am Link  |  Quote  |  Print  |  Notify Moderator

Trans is huge factor as is excess exhaust temperatures.


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Ivylog

Blairsville, GA and WPB, FL.

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Posted: 01/24/18 11:16am Link  |  Quote  |  Print  |  Notify Moderator

Until you know how much torque your tranny can handle leave it alone.


This post is my opinion (free advice). It is not intended to influence anyone's judgment nor do I advocate anyone do what I propose.

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Tom/Barb

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Posted: 01/24/18 06:24pm Link  |  Quote  |  Print  |  Notify Moderator

Call banks Power, they are the experts


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old guy

Oregon (pronounced Or e gun)

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Posted: 01/24/18 07:10pm Link  |  Quote  |  Print  |  Notify Moderator

An old friend of mine, told me it doesn't matter what you do to you rig to increase HP, you just have to remember that you have to feed those horses

mike brez

milford ct

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Posted: 01/24/18 07:48pm Link  |  Quote  |  Print  |  Notify Moderator

My ford pickup with a 7.3 had 275 hp stock. It's now pushing just over 400 hp.
Super fun to drive. The tranny is the weak link.


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MrWizard

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Posted: 01/24/18 08:36pm Link  |  Quote  |  Print  |  Notify Moderator

tune up requires more than a 'chip'
often requires new injectors, more turbo boost etc..


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dons2346

Sioux Falls, SD, formerly of So. CA

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Posted: 01/24/18 08:59pm Link  |  Quote  |  Print  |  Notify Moderator

If you increase HP, you will create more heat. More heat requires more cooling, How are you going to address that?





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