Speed Engineering

Speed Engineering We Sell Horsepower A modern day Speed Shop complete with DynoJet Chassis Dyno. Specializing in Dyno Tuning, Performance Packages and Engine Building.

After a Cam, Converter and Header upgrade this Automatic C5 was in dire need of a real tune. Someone who shouldn't be t...
10/25/2024

After a Cam, Converter and Header upgrade this Automatic C5 was in dire need of a real tune. Someone who shouldn't be trying to tune had made a mess of the calibration. The previous "tune" had the timing maxed out and was "dirt car lean" at 15:1 AFR and had the safety features disabled. This makes it hard for a safe tune to make power over the baseline dyno pull. Too much fuel in the low RPM range made this convertible no fun to cruise around because of all the exhaust fumes and excessive fuel consumption. After hours of true calibration all the Fuel, Air, and Spark tables were happy to produce Safe and Reliable power from this baby cammed, small tube header, stall converter equipped C5 Corvette. Far more power than the piston melting "max power toon" it had. Thanks to Lynn for trusting Speed Engineering to not only get it idling, driving, and shifting right but make the most power safely possible with this combo while making the cruising enjoyable.

BMW guy wanted a Real Wheel Horsepower baseline before adding boost
09/16/2024

BMW guy wanted a Real Wheel Horsepower baseline before adding boost

This '98 made good power and great torque with my tune (569/570) but needed a custom extreme MAF tune to get the best pe...
07/31/2024

This '98 made good power and great torque with my tune (569/570) but needed a custom extreme MAF tune to get the best performance out of it. With an old Procharger kit, the original '98 PCM and original MAF it was a challenge and making power wasn't easy with 9.5:1 compression, 93 octane, LS1 intake and the long shared drive single 6 rib belt. It took some time to get it right but the results were more than worth it. Real happy with the power for this combo at only 10 psi boost and nice area under the curves for a centrifugal supercharger. No other changes between these pulls shows my eMAF tuning worth another 80 whp! No need for a troublesome PCM swap on this early LS1.

Mustangs 60th Birthday today. I will highlight these improvements and more later on this Classic 69 with a carbureted C...
04/17/2024

Mustangs 60th Birthday today. I will highlight these improvements and more later on this Classic 69 with a carbureted Cleveland.

This C5 Z06 came in for an evaluation and diagnostic dyno session. It had a big cam, headers, exhaust, cold air, etc.. ...
04/12/2024

This C5 Z06 came in for an evaluation and diagnostic dyno session. It had a big cam, headers, exhaust, cold air, etc.. These power curves indicate issues with cam selection and or cam timing and more. Those budget cam swaps don't save any money if you don't get any power gains and are even more expensive when you lose low and midrange power and drivability. We often hear "just needs a tune" but a tune can't fix a bad combo or poor workmanship. This car would be making over 100 whp MORE with my Cam Only Z06 package. This guy wants you to learn from his mistake and heed his advice "it costs a lot more to do it twice"

When a good customer wants you to improve the tune on an ole 3 valve Mustang... you just have to do the best you can. ...
03/30/2024

When a good customer wants you to improve the tune on an ole 3 valve Mustang... you just have to do the best you can. He just wanted the most power he could safely get with this combo on 93 octane only, a 2.6 Kenne Bell supercharger and 9:1 compression ratio. It was richer than Oprah and not happy on the mail order tune. I never imagined we would get into Coyote territory but it responded very well. We can safely say He is very happy with the results. Now it's time to upgrade some of the support systems and do some flex fuel tuning.

This stock c5 showed up with just a cold air intake installed wanting a true dyno tune. This is another good example of...
03/18/2024

This stock c5 showed up with just a cold air intake installed wanting a true dyno tune. This is another good example of what type of power can be gained from just a true dyno tune on a car that already ran fine. Now it runs better, drives better, is more efficient, safe, more crisp, and has an extra 26 whp and 30 wtq. Now any future mods will just need a fine adjustment to the established tune.

Got this Clean Classic Chevelle with an LT1 swap all dialed in on the Dyno with a reprogram of the stock PCM.
02/10/2023

Got this Clean Classic Chevelle with an LT1 swap all dialed in on the Dyno with a reprogram of the stock PCM.

On this 4 27 Day we highlight this c6 Z06 with a 427. I found plenty of issues created by other shops not doing their j...
04/27/2020

On this 4 27 Day we highlight this c6 Z06 with a 427. I found plenty of issues created by other shops not doing their job and fixed them all. After that and a tune adjustment the customer was VERY happy to have an extra 114 whp and a safe car that does everything well including passing the emissions test.

50 years between this 69 and 19 Mustang
04/20/2020

50 years between this 69 and 19 Mustang

Address

16075 State Highway 58 S
Decatur, TN
37322

Telephone

+14234768076

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