Upper Limits Dynoshop LLC

Upper Limits Dynoshop LLC Offering Dyno time, tuning of GM products and tuning for aftermarket ecm's like Holley, Haltech, Megasquirt. Available evenings and weekends.

When I hear Vega bracket racer I think of 400 stickers and a car that hasn’t changed in 20 years. This isn’t that.
04/12/2026

When I hear Vega bracket racer I think of 400 stickers and a car that hasn’t changed in 20 years. This isn’t that.

This is my kinda build. Quiet, stock looking. 4 digit power on the 1st pull. Dang!
03/22/2026

This is my kinda build. Quiet, stock looking. 4 digit power on the 1st pull. Dang!

Joey showed up to do some tuning on the coldest day of the year. Not an issue if you have dump tubes that we can evacuat...
01/23/2026

Joey showed up to do some tuning on the coldest day of the year. Not an issue if you have dump tubes that we can evacuate. 70 deg in here. 🙂

Now is the time. Don’t forget your intercooler if you are air to water.
11/07/2025

Now is the time. Don’t forget your intercooler if you are air to water.

260miles on this beast. Guesses?
10/12/2025

260miles on this beast. Guesses?

These guys don’t mess around. Just a few days ago they left a rod on the floor. Maybe today will go better. 🙂Edit: heck ...
09/24/2025

These guys don’t mess around. Just a few days ago they left a rod on the floor. Maybe today will go better. 🙂

Edit: heck yeah! New non v8 dyno record! Video is in the comments.

Got a new deal for big power guys. If you are a v8 and break the dyno record of 1796rwhp you get 4 hours for free. That ...
09/15/2025

Got a new deal for big power guys. If you are a v8 and break the dyno record of 1796rwhp you get 4 hours for free. That was a deal I set up a few weeks ago.

Decided that wasn’t very motivating to the non v8 guys so we will have a separate deal for them. Break the non v8 record and you get up to 4 hours for free current record is 1080 but that might change today.

08/30/2025

New dyno record and it happens to be my car. That feels wrong and playing with high hp cars is fun so I am offering a free dyno session to anyone that can get a new high. I need to be able to share the numbers and am offering up to 4 hours for free.

I like to stock up on stuff that I learn we need often. This is a strange one. Yes, you need an intake air temp sensor t...
08/17/2025

I like to stock up on stuff that I learn we need often. This is a strange one.

Yes, you need an intake air temp sensor to tune your car. If you don’t have one we got you covered.

A surprising number of people show up here with turbos and a terminator and no boost control. We can temp something up w...
05/31/2025

A surprising number of people show up here with turbos and a terminator and no boost control. We can temp something up with this accurate low pressure regulator or we have the parts to wire it up right for you. No one is ever happy with spring pressure.

Address

605 S. 1st Street
Springfield, NE
68114

Telephone

+14025078509

Website

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