ANYONE WANT A STS SYSTEM?

[RedSrt007]

If I was doing the sts, skip the fuel injectors in the intake, upgrade the factory ones, real fuel system, egt it, and tune it right.

-Red

 

[Ram From Hell]

If I was doing the sts, skip the fuel injectors in the intake, upgrade the factory ones, real fuel system, egt it, and tune it right.

-Red

True 'nuff, but even operating correctly these weren't returning a competitive increase in HP to the Paxton.

I wouldn't bother with a half measure if I ever went turbo again. I'd go full boat with twins at the engine, engine management, major fuel delivery upgrade, etc. These engines can obviously make HUGE power with turbos when done completely and correctly.

 

[RedSrt007]

True 'nuff, but even operating correctly these weren't returning a competitive increase in HP to the Paxton.

I wouldn't bother with a half measure if I ever went turbo again. I'd go full boat with twins at the engine, engine management, major fuel delivery upgrade, etc. These engines can obviously make HUGE power with turbos when done completely and correctly.

I agree, an upgraded fuel system / injectors , boost 7-8 intercooled with w/m and a good tune, (aem, or even vec) and I think you can have a great setup.

For 4k for the sts, and 1k for the upgraded fuel system (parts) , you can have a decent single turbo setup if installed and tuned right (includes the vec).

It took me 3 days, and I did a full fuel upgraded (pumps, lines, injectors) and had to retune for it (took me a weekend), but its worth it in the end.

Heck, for the fact of making the system work, I would be willing to do it!

-Red

 

[Nowwhat]

I agree, an upgraded fuel system / injectors , boost 7-8 intercooled with w/m and a good tune, (aem, or even vec) and I think you can have a great setup.

For 4k for the sts, and 1k for the upgraded fuel system (parts) , you can have a decent single turbo setup if installed and tuned right (includes the vec).

It took me 3 days, and I did a full fuel upgraded (pumps, lines, injectors) and had to retune for it (took me a weekend), but its worth it in the end.

Heck, for the fact of making the system work, I would be willing to do it!

-Red

you can make a cocktail of heroin, cocaine and meth work too....doesn't mean you should try.... .....

 

[SANCHOBA]

the sts blows engines because they spray supplemental fuel in the intake air stream, which isn't evenly distributed into all the cylinders.

the paxton set-up on my iron V-10 has 3 supplemental fuel injectors, just upstream from the throttle body....should i be concerned?

 

[BigRed460]

the paxton set-up on my iron V-10 has 3 supplemental fuel injectors, just upstream from the throttle body....should i be concerned?

I would say yes, In the HEMI world sts was sending 8 bigger injecctors with there 5.7 kit (later found to be the injectors out of a 6.1 hemi), GMS/Paxton was send 2 aux fuel injectors. The paxton hemi trucks blew just like the sts srt's are, while the sts's were not only making more power but also lasting... Aux fuel injected like that is a dumb idea in from my point of view, there is no way the fuel is going to distibute evenly...

 

[Ram From Hell]

I would say yes, In the HEMI world sts was sending 8 bigger injecctors with there 5.7 kit (later found to be the injectors out of a 6.1 hemi), GMS/Paxton was send 2 aux fuel injectors. The paxton hemi trucks blew just like the sts srt's are, while the sts's were not only making more power but also lasting... Aux fuel injected like that is a dumb idea in from my point of view, there is no way the fuel is going to distibute evenly...

Bingo.

This has been especially bad for the GENIII Viper engine because of its intake manifold's poor air distribution. The problem just becomes magnified under boost, and the cylinder lean-out from auxiliary injectors makes it worse still. Although I still believe that my primary cause of failure with the STD (oops, STS) was the fact that it was cranking out 12psi instead of 5. But what me worry. I'm running Paxton now, and a sh!tload of high perf internals.

This also makes me wonder about the safety of using nitrous in large amounts without going to direct-port injection. A dry only system would present an uneven increase in cylinder output, and the wet system would be subject to potential lean out (presuming fuel enrichment is also with an aux injector).

Methanol injection should be far less of an issue when introduced upstream, since the primary purpose is to cool the air charge rather than enrich the mix. I wouldn't think that it would exacerbate the air distribution woes.