
Custom Tune Form
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| We’re now a Dealer for Diablosport Products |
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We’ve chosen Diablosport hardware to transport our performance calibrations.
Click here for more info: |

Attention:
Now Shipping
2007/2008 GM Truck ECM/TCM's.
We now have ECM's in
stock;
This means
NO DOWN TIME!
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Dealer for
Competition Cams
Let us spec out your next camshaft for your LSx build
Contact Us:
210-626-0278
Tuning Available for:
96-08 GM Vehicles
NEWS: Ditch that Whipple controller! Upgrade to 43lb injectors and a Performance Tune.
Turbocharger your GM Truck...
Interested in a Turbo Charged GM Truck? Call us for details.
Flex-a-Lite, LS1 & '05
fan harnesses?
Click here!
New Hours
M-F: 9am-5pm

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Customer Vehicles - Page 1 | Page 2
Customer vehicles with stat, specs, and dyno runs
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Click pictures for hi-res views |
John P
Vehicle: 2006 Hummer |
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Mods:
Nelson Tuned |
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Robbie
Vehicle: 2008 LS3 Corvette – 6sp Auto |
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Mods:
Built by: NelsonPerformance
Vortec Supercharger – Model V-2
60lb injectors/boost a pump
HP Numbers coming soon!
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Trey – SA, TX
Vehicle: ’07 Silverado
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Mods:
408 Stroker 9.1 compression
LS2 heads w/ 921 springs
Custom NP cam Grind
TrickPerformance Turbo
NP custom intercooler kit
Fully built 4L65e, Yank2600
HP Numbers coming soon! |
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Andy
Vehicle: 2006 GTO
Nelson Performance built |
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Mods: 122Magnacharger-8psi, 228cam, headers, SD Tuned
547HP and still climbing!
“hey allan it really came alive when we got home , running excelent drive ablity is perfect better than before 25.5 mile per gallon on trip home . taking to car show friday night . did not drive today . let you know soon . so far awsoooooome” |
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Craig |
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Vehicle: 1967 Camaro
Engine: Owner built
6.0L
Mods: L92heads, 228cam
Nelson Engine Harness |
   
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Mike
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Mods:
- Nelson Performance Tune
- CAI
- Catback Exhaust
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Vehicle: 2005 SS
1/4 time:
Before mods: 14.9et
After mods: 14.39et |
Manuel
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| Vehicle: 2000 Silverado |

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| Mods: |
- Nelson Performance Tune
- Speed Density tuned
- 408 Stroker
- NOS
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1/4 time:
11.5 @ 115 |
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Click here for video
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1 Second 1/4 Mile Improvement...
with just a Nelson Performance Tune!
Owner: 2K5Squirrel |
It’s a 2006, regcab, 4.8L with 3.23 gears, completely stock except for Nelson Tuning.
Check this out, it went 16.6 stock and went 15.6 after a tune only! |
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Vehicle: 2006 Chevrolet Reg Cab Short Bed
Engine: 4.8
| Mods: |
Nelson performance tuning
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| 1/4 Mile times so far: |
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Stock - 16.6@84 MPH
After Tune - 15.6@90 MPH
4.10s 15.1
cut-out, Drop in K/N and big ass hole in the bottom of the airbox mod 14.5
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PJ - All the way from the Netherlands!
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Vehicle: Chevrolet Avalanche
| Mods: |
- Stage two heads
- Comp cam
- high performance valve train components including timing set
- Slp 1.85 Ratio Rockers
- Comp camshaft 212-216
- high performance oil pump
- Airaid air intake
- 80mm BBK throttle body
- ASP underdrive pulleys
- Flex-a lite fans
- MSD blaster coils
- Flowmaster exhaust including highflow cats and Badlanz cutout
- SSBC big roter braking package
- Hotchkis towing package
- Lowered 2 inch front and back
- NELSON PERFORMANCE TUNING
- Driving on LPG fuel
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Glen B.
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Vehicle: 2004 Pontiac GTO
| Mods: |
- Nelson Performance Tune
- Ported Fast 90 MM intake
- Nick William 90MM throttle body
- 4 inch intake filter set custom made with K&N filter
- GM Performance Custom 4L60E for up 1000 HP
- Solid Carbon fiber drive shaft
- Titanium JBA Headers
- Custom designed 3" exhaust with 3 inch high flow cats
- SAP Rear Magnaflow mufflers with Chromed early style Corvette Tips
- Peddlers suspension kit front and rear
- Full custom designed frame
- LS2 with Titanium Rods
- Forged pistons
- ZEX Wet NOS Kit
- 100-250 HP
- The polished supercharger is on 2 week back order because I am having some tubing custom made for the 90mm Throttle body
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| Future Mods: |
I will be dropping in an LS7 Short block with 3 miles on it from a local dealer here when a salesman totaled one on a test drive.Current setup ratings Rear Wheel HP dyno’ed before your tune was 572 HP without NOS I can’t wait to see the HP with the charger and NOS shot
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1000 HP Corvette
Owner: David P |
   
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Vehicle: 2000 Chevrolet Corvette
Engine: 441 CI
C5R G.M. Block
Update: August 2009 Bonneville. New MPH.
253MPH in the ABGT Class
Fastest Stock Chassis Vette at Bonneville!
This car laid down 1011HP to the wheels.
It ran 202mph at the Texas Mile
440 C5R engine w/ 15psi
Stay Tuned later this year for a 250mph+ run at the Bonneville Salt Flats
This was all done on a stock chassis!
| Mods: |
- Crank – Lunati 4.125 stroke
- Rods – Lunati Billet Steel
- Pistons – Wiesco forged ceramic coated 9.5/1 compression
- Oil System – A.R.E. Dry Sump System with 3 gal tank, GM ported and polished
pump, Mobil I Oil
- Heads – A.F.R. with Ferrea S.S. 2.080" Intake and 1.60" Exhaust
- Valves, double
vavle springs, Titanium retainers
- Cam – comp cams hydraulic roller
Rockers – Jesec 1.7 Roller
- Valve Covers – Katech aluminum polished
- Coils – GM
- Intake – Edelbrock Victor Jr with custome aluminum elbow
- Injectors – 72 #
- Fuel Rails – Edelbock Hy Flow
- Throttle Body – GM
- Tuning – Nelson Performance
(Nelson comments- 3 Bar speed density tuned, mafless)
Many more mods...
Click here for a full list of the mods and more photos |
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Owner: Bob |
   
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Vehicle: 2006 Chevrolet Corvette
ECS Supercharger
68lb injectors
Tuned by Nelson |
Randy B |
   
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Vehicle: 2005 Chevrolet Silverado
Engine: 5.3
| Mods: |
- 5.3l, 60# injectors, Radix fuel pump kit
- FLT 4l65e, 2600 vigilante
- Comp cam 220/220-.581/.581-115
- 2 bar map
- 10 psi boost
- nowperformance meth kit.
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STS turbo, Nelson SD tuned
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6" fabtech lift, 35" tires, 4.10's, eaton posiSTS Turbo
- SnowPerformance Meth kit
13.9 ¼ mile run - More info and vids coming soon.
Click here for more photos
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Nelson Performance "600 rwhp GTO"
Owner: Sarge |

Click here for
Stage 1
photos
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This first set of pictures is what you don't want your engine to look like!
Old mods:
- Stock LS1
- Patriot Heads
- Fast Intake
- Custom grind cam
- 100shot N2O
- 3200 Yank Converter
- "Other" Tuning
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Click here for
Stage 2
Photos
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This set of pictures is the beginning of a projected 600 rwhp engine to set this GTO apart from the others!
New mods:
- 402 Stroker
- Eagle forged crank
- Mahle Pistons
- Lunati Pro Billet rods
- CompCam: 238/242 - .605/.610
- Fast intake
- 48lb injectors
- Upgraded Pump
- Custom Driveshaft
- ASP Pulley
- Nelson Tuning
¼ mile: low 10’s |
Owner: Chris L |
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Allen,
I got my custom tune today. I had to do the passlock relearn. Noticeable increase over my Hypertech tuned computer. Brought my 0-60 time down approx.
1 sec. I'd love to see the 1/4 mile difference. How do you do it? How close to the limit do you run the 5.7L? Just wondering cause I feel like my 5.7L has even more potential.
Chris L. |
Owner: Austin - LS1Truck Member "vicred" |
  
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Vehicle: 2001 Silverado RCSB
| Mods: |
- Nelson performance tuning
- LS1 engine swap
- TR224 224/224/.563"/.563"
- LS1 E-Fans
Nelson Fan harness
- 100 shot Nitrous
- Eaton Posi
- Yank TT3000
- Built 4L65
- 255/50/16" MT ET Street Radials
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1/4 Mile times so far:
60' 1.840
330 5.065
1/8 7.751
mph. 90.53
1000' 10.110
1/4 12.111
mph 112.34
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Owner: Ross - LS1Truck Member "rosscob" |
  
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Vehicle: 2000 GMC Sierra 1500
Factory Equipment:
5.3L V8
Auto Trans
3.73 Rear End
Towing Package.
| Mods: |
- Nelson Performance Tuning
- *** 2004 6.0L LQ4***
- Whipple Super Charger
- Comp Cam 212/218 .555/.555 115LSA
- Comp 918 Valve Springs
- The Other Guys Headers
- Flowmaster Exhaust
- 43Lb Marine Injectors
- 34" HD Radiator with 2005 Electric Fans
Soon to be added:
Transmission Cooler and More Boost. |
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