if i were to reprogram my ECUwould that un-program my governer on my 4.3? it tops out at 97 mph ......

 

To answer your question, it depends on the tuner. Most hand held tuners can modify the speed limiter. Without more specific information about your vehicle, I cannot suggest further.

You MUST make sure that your truck is safe at those speeds though. Just increasing the speed limiter without ensuring that the tires are proper for those speeds is asking for an accident. The rest of the truck also has to be in very good condition.

 

the reason i was asking is because on the drag strip thats by my house i ran my 03 blazer Lt 4 door down the strip and it topped at 97.Kinda embarassing that my friend beat me in his civic because he could go faster. About the tires.. aren't most good year tires rated just above 100 mph?? i can get the tire model for you tomm. its too cold outside to even go outside..

 

what type of shop should i look forto reprogram my ECU/PCM. WouldANY custom shop be able to reprogram a blazerECU???

 

You can get the speed ratingoff of your tiresand then go to a tire website like Tirerack.com and check.

 

I got mine re-tuned at Wait4MePerformance.com but I've heard good things about PCMForLess.com too.

 

i have hankook mileage plus 2 205 75 R15 tires on my blazer it tops out at 113 with the vortec in it it's a 93 4dr 4x4 and everyone is amaized that it goes that fast and it's all stock until i tear it down a rebuild.

 

thats odd that an older year has a higher governer setting.

 

European 1994 S10 4x4, 4.3 VINZ

Yes with tires up to 195 km/h respecitvely 210 km/h - of course

topped out on highway in Germany at 109 mph (180 km/h) and a little downhill even 118 mph (195 km/h).

all original stock - fast enough for a 4x4 I think

and best of all - no governor