Paxton vs Twin Turbos in Dallas Texas heat???

[RMBSRT]

Just doing a little planning for next year on a couple of add on's to my coupe and I wanted to get some input on which is better in the Texas summer time heat...twin turbos VS paxton?

With every mod you do there is some give and take, can anyone give me some insight of their own experience with either?

The car will see 4 to 6 track weekends during the spring an summer months so keep that in mind...

Other planned mods:
6 point harness
3m clear bra
Corsa track exhaust
Motons
Corner balanced
Sport cups on forgline wheels

Thanks in advance!!

RB

 

[plumcrazy]

in heat a TT is going to be better id think

 

[KenricGTS]

TT over blower in the heat. Air to air cools better than air to water. Also more power I think with twins, but blower cars rock as well.

 

[jtupper]

[quote ]Air to air cools better than air to water.

[/QUOTE]

I don't know about this one. If you burn your finger, what cools it faster? Blowing on it or running it under cold water. Air to water is more efficient, but weighs much more than an air to air intercooler.

 

[KEast]

Wate VS Air intercooling being more effective depends on the system design. Seperate resivoir and rediator for intercooler vs existing cooling system which would maintain 180 degree coolant would be less effective then even 100 degree dallas hot air/air cooling.

 

[elanderholm]

[quote ]Air to air cools better than air to water.

I don't know about this one. If you burn your finger, what cools it faster? Blowing on it or running it under cold water. Air to water is more efficient, but weighs much more than an air to air intercooler.

[/QUOTE]
The water temp saturates at some point and becomes less efficient. Air/Air for road racing.

 

[Bobpantax]

You asked about the effect of heat on either in the Texas heat. I've had my Paxtonized coupe since May and it worked perfectly during the intense heat of the Miami summer. I have not had a TT Viper but from 85 to 88 I had a TT Maserati. The TT came from the factory. The heat was an issue because the turbos themselves got so hot. They threw off alot of heat under the hood. This resulted in some problems. I do not know whether this is a factor in currrent Viper TT after market applications but I would suspect, since the turbos are driven by exhaust gases, that it might be a factor. Perhaps the turbos can be wrapped with something to reduce the heat factor.

 

[Paul Hawker]

Both turbos and superchargers are going to be an issue for roadracing in the hot Texas Summer.

For street use, a Paxton with air to water intercooling seems to run really cool, but on the track, might still be a concern. Short shifting might be required.

 

[SnakeEye]

If you go with Paxton and want to track hard check with Doug Levin as I believe he has a solution that resolves most heat soak concerns.

 

[Viper X]

One of the TT guys melted a spark plug at VOI9 this year while running on the oval.

Not sure how the Paxton guys did on the oval but didn't hear of any issues.

I had some heat related problems at the drags with my Paxton car, but never have had any heat issues while road racing.

The tubos get very, very hot while road racing.

Not sure which intercooler system would work better for you but you should definitely talk with RSI. They are in Texas and do a bunch of work with both TT's and blowers.

Dan

 

[RMBSRT]

Thanks for all of the replys...

Texas summers are tough and road racing in the texas summers are tougher. Can you do a heads / cam build up on a Viper for the same money of a paxton?

Do you think H/C is a better alternative to FI in texas?

RB

 

[KenricGTS]

Heads and cam would be the best way to go for road racing. Also exhaust and k&ns and a DC tune would be the way to go. For ulimate power on the street or 1/4 mile forced induction is the best.

 

[Casey]

TT is better in every aspect when setup properly!

 

[valentine_viper]

An N/A car will always be more reliable, especially in the heat. I have done some road race events on extremely hot days (mid to high 90s) and the N/A Vipers just ran and ran with no problems. SC cars were definitely having heat issues. One blew an oil line and the another developed some motor issues (not sure what the exact problem was). Haven't seen any turbo Vipers on a road course yet, so can't comment on those.

Unless you are an extremely good driver, the HP levels of a forced induction Viper won't get you around the track much faster than a mildly worked N/A car. They are already faster than most drivers (including myself) can fully handle. In fact, it might even slow you down and will definitely make the car much trickier to drive. Even a stock Viper is quite a handful on a road course.

If you want a real eye opener, let a pro driver take a few laps in your car with you in the passenger seat. I did this and was shocked at how much faster he could get the car around the track than I could. If I had been racing against him, it wouldn't have mattered if I had 200 more hp than him. He still would have kicked my butt.

 

[Kai SRT10]

Just doing a little planning for next year on a couple of add on's to my coupe and I wanted to get some input on which is better in the Texas summer time heat...twin turbos VS paxton?

With every mod you do there is some give and take, can anyone give me some insight of their own experience with either?

The car will see 4 to 6 track weekends during the spring an summer months so keep that in mind...

Other planned mods:
6 point harness
3m clear bra
Corsa track exhaust
Motons
Corner balanced
Sport cups on forgline wheels

Thanks in advance!!

RB

I would add an accusump and comp coupe oil pan to your mod list.
A Quaife would make a nice addition as well.

As for your original question, I went with natural aspiration. Not as much power as forced induction, but heat isn't as much of an issue.

If you are worried about heat (no matter what sort of power route you go down) you may look at running Evans NPG-R Coolant in your car.

http://www.evanscooling.com/index2.html