Hi- decided it was time to have my gen 3 supercharged viper professionally tuned
I went through a round of mods two years ago - dumped my vec -2 and external pumps (which had worked flawlessly) on a semi canned tune which I had locally confirmed for A/F ratios
Installed in tank pump, bigger...
Not a big surprise
but my vipers clutch fell apart at 3500 miles
dealer found loose bolts were the problem and fixed it under warranty
I also had loose crank pully bolt etc.
Same shifting problem occured with only 1200 additional miles (800 with super charger)
I take the Viper to my local...
Had not driven my Viper for about two weeks- started her up and noticed that it was hard going into gear and the clutch pickup was almost imediate- right from the floor.
Driving her did not loosen anything up- shifting was hard- a little revs between shifting helped but somthing is wrong. Got...
Tires arrived yesterday, had them installed this morning.
Biggest difference is that I can now go almost full throtle after the 1/2 change and not brake traction- I still have to roll into it but I can roll in to full throtle.
The runflats (with 6,000 miles) could not handle the power in our...
I want to change out my runflats without changing wheels. I am considering either the non-runflats pilots of the P-Zero rosso Asmmetrico in a 355/25 YR19 rear and stock front size- looking for better dry traction- plus I just got a nail in one of my rears and this is a good reason to change...
Just got back from the dyno where I base lined (with Vec 2) three weeks ago.
Rear wheel HP 613.3
Rear wheel Torque 606.73
I am running stock exhaust and a very rich program
the spike in my a/f graph happened when my rear wheels jumped on the dyno
Start tuning next week
Again thanks for the help Bill & Adam at Visions of Speed for tips and base programing for my Vec-2.
I redid my fuel pumps tonight- think they look better- but I will add one more elbow tomorrow
and here is the full engine
when I get a chance I will do a full how-to with pics...
A big thanks to Bill and Adam at Visions of Speed - for technical advice during my install- these guys are great!
I will do a full write up with pictures when I am done. I am using the VEC and the Split-sec computers.
Rich
Help!
I am 2/3 through my Paxton install which has gone pretty smoothly but I am concerned that I do not have enough tension in my Belt- it is not as tight as my accessory belt and I am concerned that the tensioner is not functioning correctly.
When I went to release the tensioner bolt the...
I am pissed off. I ordered a new oilpan gasket for my Viper by telephone (I gave him my credit card info as it was a special order) from my local dealer as after droping the oilpan last night I did not think that the rubber inner seal was in great shape. He told me that he would get the order...
What a load of BS on the Corvette forum- first I have attached the Dyno pull showing my third pull compared to a pull I did in February with one bad plug. Trackmasters will be posting the dyno graphs for both cars in the next week or so on their web site. My Feb. run is posted on that site.
I...
Just got back from a dyno night at the local dyno. There was a new Z-06 with 2500 miles on it.
He dynoed corrected at 453 HP and 431 max torque (second run)
I ran imediately after him- my first run was strong 455 HP and 487 ft/lbs, my second run I shifted into 6th instead of 4th- I...
I am looking for VEC-2 file that would provide a base point for my Paxton supercharger. I realize I need to have it Dyno tuned- probably be done in Atlanta- but I would like to be able to drive it to the Dyno.
I will not be doing any other Mods (at this time) other than the Paxton and the...
Do I need one for my Paxton? unlike a turbo there is no adjustment from the cockpit- but I guess its nice to know whats going on.
If I do install one any recommendations?
thanks
Rich
Just recieved my MGW license plate holder and shift knob for my Hurst/Mopar shifter.
As expected the MGW parts are incredibably well finished-
Problem is the thread on the MGW knob is about half the diameter of the screw thread on the shifter.
Did the Mopar shifter change design, mines about...
I have just purchased a "new in the box" Paxton kit. Apart from upgrading the air-box if necassary are there any other tips.
I currently have a VEC 2 installed but no ther mods other than a K&N which will be shorttly for sale.
I am not interested (for now) in extracting maximum HP, rather...
If you look at the old articles testing the 2003/2004 SRT-10 they state the viper could hit 60 in first gear. In fact the first comparison I read between the Ford GT and the Viper was clear that both cars could hit 60 in first.
Now I read " the viper looses 2/10ths to 60 because of the...
I have noticed that under full throttle I hear a Cliking or fast ticking noise that seems to be coming from the exhaust tips.
I was concerned that this was from running lean but I put the stock setting into the VEC-2 and same result
any thoughts??
I made a big mistake and washed my Viper without covering up the VEC-2- it was missing bad when I fired her up. Ran it for about 30 minutes, got it nice and warn and it must have dried out- ran fine.
Problem is the check engine light came on - went on and off a couple of times but stayed on...
I will not know for sure until I dyno- but the VEC-2 definately has improved my acceleration times.
I tried the stock programing to make sure everything was working- it was
then tried the two modified programs that ROE sent me - the second program was the real deal. Acceleration was...
Just finished installing the Mopar/Hurst short shifter and Roe Vec-2. I can't believe I had the Viper for a year without the Hurst- what a difference in shifting- unbelievable-
As for the VEC-2 - installation was pretty easy- even though I thing some of the connectors that come with the kit...
My Viper has been tough to shift since new- I just thought it was part of the package. Two weeks ago reverse gear became almost impossible to shift into- I had to kill the engine and then shift. I took the snake into my local dealer and they put a new clutch/pressure plate in under warranty-...
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Apologies to those who contributed anything of value....but this thread was mostly full of name-calling and antagonism. PM Vipermad if you have any questions.
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