Does anyone have any dyno numbers on what type of WHP they have gotten with the Twurbo kit. I would love to see some performance stats like 0-60 and 1/4 mile times too! I am thinking very seriously about going this route, possibly with the Jesus Head, exhaust and tune. Any info or opinions are valued.

-Greg-

 

I think there are better alternatives, especielly if you have the budget. Alot of the twurbo kits have had trouble. What kinda of budget are you looking at, your goals and then go from there?

Jacj

 

If done correctly a twurbo is a nice setup. Tame twurbo MINIs are probably around 230-250 whp and "more aggresive" setups can probably do 400whp +. I don't have one and I only know of a few that weren't problematic. I honestly would do it if you fall under either of the following two scenarios:

1. You are comfortable and have experience working on similar type modifications (and have adequate $$ to do it).

2. You have plenty of $$$, know a skilled mechanic, and are willing to be patient with downtime and setup.

From people I've talked to, once the setup is dialed in it's awesome.

 

400 whp from a twurbo is going to be tough unless you really turn the boost up a lot.

Keep in mind that twincharge setups are going to be a maintainence nightmare until they're dialed in correctly, and even afterwards they still take a great deal of fine tuning to keep them running perfectly. Running that much boost puts a lot of stress on the motor too, so you'll almost definitely have to put in a set of pistons, and maybe some rod bolts.

 

And for those annoyed by a sense of bad aesthetics...your CEL will always be on.

- Matt

 

Thank you for all of your feedback on this. I love the idea of doing this, but it is my daily driver and I have yet to find a good tuner/mechanic in my area. I know enough to be dangerous, but think that this one is above my head. Are there as many issues with Turbo only kits? I don't live that far from Randy Webb, and like the looks of his kit as well, but he is pretty hard to get ahold of, and that can get extremely frustrating if you are running into problems.

I think that the best bet is going to be the Jesus Head, cam, exhaust and tune, and it sounds like I will get similar HP results, at least on the lower side, but better reliability. Is that an accurate assumption?

 

Stay on the supercharger...do the head, 15% pulley and RMW tune. You will be much happier in the long run and have less headache as well as a lot more available credit on your card.

 

Kind of off-topic, but am I going to feel a real difference with a 15 or 16% pulley over the factory JCW set-up. I am getting around 14-15 lbs of boost consistently right now. Just curious?

 

There was a post around here that listed the 15% 17% and 19% lbs of boost.

with an intake, pulley, and exhaust the 15% made ~20lbs I believe.

 

I hear this question as asking for a straight line acceleration solution for the S. The responses rightly explore costs, maintenance, potential drivetrain damage and alternative solutions. What about NO injection? Lots of HP, low cost & maintenance & minimized engine stress vs. twerbo. So, why say no to NO?

 

Boost with a given pulley is entirely dependent on the flow of your head. With the RMW head I see about 14.5 peak boost at sea level with a 15% pulley. With the stock head expect 1.5-3 PSI higher (Manufacturing tolerances vary).

20 PSI sounds pretty high for a 15%, even for the stock head.

 

Agreed .

 

Nitrous Oxide injection had it's own set of headaches, not to mention the hassle of filling the bottles all the time. I'd go through a bottle every day the way I drive... haha.

 

Sounds about right, I have intake/15%/header/exhaust on a stock head and I see a consistent 15 psi at high rpm's. (sea level). I think that's the norm for a 15% pulley in general, which obviously varies somewhat from engine to engine. I've read of 19% cars doing bet. 18-20 psi, and stockers around 10 psi.