Mark ... I was simply rehashing the argument made by APS several days ago ( over on the STS vs Procharger thread ).

APS quoted "I was thinking that an intercooled TT C5 @ full weight should trap at around 135, with 575-600 HP".

Do I think my LS1 STS with around 550 RWHP @ 8 lbs can do it ? I believe it will be over 130 for sure --- once local tracks open.

And I think an LS6 with 50 more HP, would run 135 ... for sure.

 

Duplicate... sorry ...

 

We FI guys should pat ourselves on the back. There isn't a thread posted in this section that we can't turn into a "My pee-pee is bigger (or smaller)than yours!" contest! Hey, if nothing else, at least we are consistant!!!

 

Pumpup the volume ... Pumpup your manhoods

 

A 10 second pass is doable with something close to 500rwhp, but 135mph traps are not. As others have stated, ET is more about launch, 60ft.... Trap is more about HP.

Look for posts by slowhawk, he ran 10.7 with a p1 at around 500rwhp on a stock motor, but his 60ft was insane. Ask him how he did it.

Although NA cars do tend to get more out of their HP, the big difference I see with the FI crowed is how they drive the cars. Most NA guys will just clutch dump off the rev limiter.... FI guys would almost never do that . NA motors are just a heck of a lot easier to throttle. Turbos are the hardest to control (especially with a manual tranny). You can’t really create load off the line to spool, and if you do find a way, you leave parts behind. The autos have a huge advantage on turbo cars.

Two step, anti lag... would all help, but those are not really possible on a c5 unless you want to spend about 5k and turn it into a race car.

 

With Underground Racing here in Charlotte, you MUST be careful which vipers you "pick" on. Many of them are over 1200rwhp/tq

 

That comercial is a good laugh.

I do think they embelished on the STS turbo sounds for the comercial.

I await for some of the STS owners to post some 1/4 track numbers with their setups. Hopefully they run low 11's to mid to high 10's.

 

I own (and installed/tuned) one of the beta test STS kits (Z06).

Without rehashing everything I've said in the past, I LOVE the kit, and for me, who enjoys the open road, it is great.

The base Predator Tune is very conservative (very rich). With 5lbs and the predator tune, my car was clearly faster, but it was not crazy.

Now I am running 7lbs on my own, safe, tune (EFILive), and my car feels absolutely incredible. It's a joy to drive everytime I get in it. I've given many people rides, and they are overwelmed. And these are "car guys", not my mom! Ex. I took a guy who owns a custom 600hp Porsche GT2, and he could not believe how fast my car was.

Do I have 1/4 mile times: NO. Is that the only way to measure a "good" FI kit? Maybe to some. But to me, it's about driving my car everyday, and having more than enough power on tap to outrun 99.9% of cars.

As far as making 600rwhp at a certain psi level, who cares? I'm not sure what the point of that arguement even is... It is just math. You will roughly make double the horsepower at twice the atmosphere. You want more HP, turn the boost up. The stock turbos can easily provide boost into the double digits. The limiting factor in my mind has never been boost level, but total engine output (cylinder pressure). Eventually the cast crap will give up.

To be clear: I've never owned a supercharged car, so I have nothing to compare it to. But from a stock Z06 to a twin turbo Z06, it is night and day, yet it drives 100% like stock when driving "normal".

Tommy

 

After seeing a local, otherwise-bone-stock, C5 Coupe dyno @ 430 rwhp with the STS kit, I've been extremely skeptical of it. I'd love to be proved wrong though.

 

Pianoman .... mine did the same @ 5 lbs with Predator tune.

But, when we turned up the boost to 7, and then 8 lbs ... and used dyno to dial in optimal A/F levels and timing advance, etc ---- the ***** came alive.

However, at the higher boost levels ... valve float was seen which limited HP above 5400 Revs.

Had to install 918's to correct this event. Now the engine sings a sweet song ... and will make power/tq equal to the best kits out there.

I'd put my car up against any stock FI kit ... making similar boost.

 

The commercial was filmed here in Tampa 3 weeks ago using the AntiVenom installed 02' Z06 and a friends S/C Viper.
5.5 lbs of boost 525.6 rwhp and 472.9 rwt
This was a conservitive tune 11.5 afr and 14 degrees of timing.

9 lbs of boost with meth. injection.
603.1 rwhp and 541.0 rwt

The air bridge blew apart on the high boost pull so I never got a chance to get a final # tuned in.

I spent about 3 hours with Rick (owner of STS) last night doing a couple of final tweaks to the car for the Two Guys Garage segment that was finishing up filming today.

They used my uninstalled kit to lay out to show the pieces, now I get to install it on my 408, upgraded to 60s and 2 BOVs.

 

Mark, I agree with your thoughts on the 7 PSI and 135 MPH trap speeds, it's highly unlikely imho. Just one point worth raising, when it comes to the power generated by a single or twin turbo engine we all should be discussing the mass air flow of the turbocharger at a given pressure ratio (boost level).

As an example, it's entirely possible that two larger frame size turbochargers will have higher mass air flow (hence higher power) at 7 lbs than two smaller frame size turbochargers at say 10 lbs, it really all comes down to the mass air flow of a given turbocharger vs pressure ratio, hope this helps.

Peter

 

That sounds much more realistic. Thanks for posting facts instead of speculation.

 

haha, jessie i was admireing your new avitar, then i saw collegehumor, well done, good choice.

 

Ive driven a few vipers, one at a auto cross and they handle really well, better then a vette, they dont drive like trucks either but some people love them some people hate them...lol but i love the sound of my vette over the viper.. but the 402 stroker motor does change my exhaust note a bit.

 

I too have one of the first testers and truly enjoy the car with the STS TT 48 A/R. I would not trade the system for a charger. Regarding it producing 600bhp on stock motor, it would require at least 10-11 psi. I believe that 600 is not enough to trap that.

The product has produced great results when running with Supramen, VCA cars and others on freeway runs. STS-South Texas in Houston (281)772-7965 has been awesome and has in the works multiple corvette C5 and Z06 kits going in within the next few months.

Regarding picking on Vipers, a stock viper is of no concern, but picking on Hennessey or RSI Viper TT is asking for trouble. Just recently one dynoed 1428rwhp over at RSI.

 

Thats awesome!! Regarding air bridges I split 2 in half already. My friend who built the Black FRC with 388 on TS site, put down 741rwhp at 12.5psi. The STS kit will definetly give you what you want