10g to spend on winter project (engine)

For that power level, I'd slap on a Paxton with a legit fuel system instead of the FMU and external pumps, then get it custom dyno tuned with SCT software. It will run like a beast, and fit under your budget. The problem with most basic Paxton installs is the cheesy Split-Second box, FMU and external pumps.

Tony

 

If I had a Gen 3, I would build it for a paxton. So jealous I can't toss one on my car.

 

Paxton will get you 650-675 rwhp out of the box, without upping the boost.

 

Installed a Paxton on my Gen 3 a few years back... dyno'd ~675rwhp which is great power for the dollar with decent reliability. Check out a DLM package if you want to dial in some additional boost for even greater performance gains - Doug knows supercharging well.

 

I would either do the Paxton or the Greg Good heads and cam. Or save some money and just get the Mopar Gen4 intake package and cam from VPA. All of those options would get you in your power goal range.

 

My vote is for heads/cam. Large displacement, heads/cam cars have "presence" in my opinion. Definitely potential for higher numbers with the forced induction though.

 

Paxton can get you there and more when you are ready next winter. I just happen to have a complete big Paxton set up I just took off a car to sell.

 

I'm running a base Paxton on my stock 03 with about 60k miles, 648 RWHP. As long as you keep a conservative tune you should be fine. I'm looking into the same upgrades, forged internals is my next step with Greg Good top end.

 

Makes more sense the other way around. Rock the Paxton on a stock engine for a year at 650 rwhp, then build the engine and make 850-900 rwhp. Viper engine is a low compression ratio engine, the baseline boost that the Paxton produces is baby boost. An engine built for handling boost won't make as good of power as an engine that is built to run normally aspirated. If I were building an all-motor purpose built engine, I'd shoot for 10.5-11.0:1 CR, whereas a boosted engine would be 9.0-9.5:1 CR. Completely different pistons and ring pack. Camshaft profiles would also be different, mostly overlap.

 

Are you doing the wannagofast event in Clayton? If so, look me up. I will be there working the speed system and I will have my Paxton 06 coupe with corsa. If there's time, I will give you a ride to give to an idea if the power with stock Paxton kit. My name is kris and my car is red w/ white stripes.

Don't feel bad about loosing to a talon, we had a talon do 213mph in the 1/2 mile a couple months ago in Chicago. Fastest viper ever so far is treesnakes TT car with around 190. With your mods, you should be trapping around 145-150

 

Half mile should be good with that stock gearing up to 160 mph in 4th, but if you ever do longer pulls into 5th - you'll want to change out the transmission gearing in 5th. RPM drop going into 5th is horrible, you come out of boost and the car will feel slower in 5th than 4th.

 

How many Viper 2013 raffle tickets can you buy with $10,000........or buy three raffle tickets for $300 and spend the rest on mods.
4 Days left and counting.
Carry on with the wish list.

 

There are only 2700 tickets available for purchase.

All it takes is one ticket to win a dream.

 

Why not buy a couple of tickets and save the rest? Or maybe buy something you can take off the car when you are ready to move on to Gen 4? Your car has a few miles on it, any add ons may stress the engine too much and you will be needing another 10k to rebuild it. Sounds like you have a kick azz car already.

 

I'm with you on the weight savings approach. Heading down the same path myself slowly but surely. How much weight did the fly wheel save and which one did you get? Have you noticed any drivability issues?

If you have any cash left over, why not save some more weight with the DSE battery cover!

 

Paxton kit might add 80 lbs. It isn't that heavy, and the kit intercooler is pretty small.