"TPC presents one set of facts, EVO another. I'm just the messenger posting what i have heard from both"


And that's your problem DOG. I have driven BOTH, ridden in BOTH and raced BOTH. I don't rely on what I have "heard" to make my comparison. Get the TPC. It will "feel" great! Just like wetting your pants in a dark suit. No one will notice but it will give you a warm feeling.

If the EVO did not throw you back into your seat shifting between 1'st and second, then the driver was playing with you. Any bottom end you feel is lacking, is more than made up for from 4500 on up which is about the range on each shift. So the "feeling” you got sitting in the shotgun seat was wrong, just like so many of your assumptions on supercharging.

There is NOTHING in any of your posts that offer ANY support to your claims. Absolutely nothing. Yet, now that you were a passenger in the cars, you somehow have credability? Think again. You obviously have a bias for the TOC, for some reason, so get it, and if you feel you get better performance, then enjoy the feeling, but pray you don't come across a properly installed EVO system or your feeling will turn to heart burn.

As Robyn suggested...well, never mind, as you don't intend to buy a supercharger system anyway.


If you want to see what an EVO system does, click to the following link and click TEST VIDEO.. This is my system after it was first installed. Many EVO improvements since then. I guess my NO Bottom End helps me get to 60 mph in 4 second? LOL.

http://home.comcast.net/~connecticut.yankee/Home.html

 

ahh he's back after he's said he's done with this thread. obviously he can't play nice and HAS TO PUT OTHER'S DOWN. the perfect TROLL hillarious

his last post didn't even offer anything valuable. everyone just put 1999 on ignore and let's move on.

 

oh man that exhaust sound awesome. is there a 996 kit?

 

Well, if showing a video of a stock EVO unit going 0-60 in 4 seconds and 100 in less than 9 is not valuable info, why did you view the video? Did you notice that the wheels didn't even break free on that run? A TPC unit cannot do that kind of run. Probably why you chose not to buy a TPC unit.

I think the serious people on this board know who is bull****ing and who is not. LOL.

 

I thought you were through 1999. guess not. gees, just give it a rest already. you need a hobby besides trolling under different IP addresses.

i'm not sure how seeing and riding in both kits in person doesn't qualify me to post my impressions. it's my opinion, like it or leave it. it's not like i'm posting about some fantasy cars and won't disclose whose cars there were i don't know where the impression comes from that you have to drive the car to know how fast it is. my butt and driver's butt are in the same car watching the telephone poles whiz by. actually pushing the throttle yourself doesn't make the car go any faster. i don't want the sensation of speed, i want to actually feel it. i think it's bull**** you've got to be driving to tell. i've driven GaryFL's stage 4 TT and I've ridden in it plenty of time. it was fast either way. besides, it's not like i drove the TPC and rode in the EVO. i rode in both to keep it equal and to take my distractions out of the equation.

i don't understand what claims you say i'm making. can you explain all these claims i'm posting on here? you are aware that i don't build either of these kits right? as i've said a thousand times before, i'm just puking back up what the different manufs. tell me and combine that with my impressions of seeing the kits in person.

instead of trolling and flaming, you should take an extra moment to read my post before your criticize me. i never said that it didn't boost between first and second. i said that there was very little power under 5K in first and then it comes in a big wallop from 5K to redline. 2nd gear on, it felt very linear.

how do you know if i'm going to buy a SC or not? why would i be stirring up so much **** if i didn't intend on taking the plunge at some point. you still think I live with my mom.....

you really are a jackass and you're proving it the board. you should come back under a different IP and start all over again

 

Dog, cool talking with ya...looking forward to meeting you in person.

I told Robyn you called her a *****!

 

A GT30R, on the high compression 3.4L would make full boost by 2500-2800rpm. Not especially laggy, imho. In fact, it's a lot earlier than either SC system (esp the EVO sc). And an intercooled 5psi is all that would be needed to make another 100bhp since there isn't 25-35bhp worth of parasitic belt drive loss.

Shiv

 

There you go Kirby, stirring the pot

Let me know if you find any more of those things I asked you about.

 

i believe reading that roots-type is less adiabatically efficient, as it is external compression, than one with internal compression (a true compressor) like a vortech unit. i am a little surprised by the use of a roots-type blower. if one wanted positive displacement blower and that sort of powerband, why was a lysholm twin-screw style not applied? i think centrifugal, however, in theory is best suited to the powerband of the 996 n/a motor, as boost is more or less (in theory) proportional to the square root of the compressor's speed. the more you load the rpm's, the more boost there is. max boost near redline. significantly less boost when you are just driving around town. when you are racing, which is when you want power, that's where you have boost. as far as fear of having boost at high rpm's being dangerous, this is a valid concern. however, i think that evo's efforts to address proper fuel and tuning for a non-lean air-to-fuel ratio would have accounted for this. yes stress at higher-rpm's can seem frightening, but with so many complex tuning systems and extreme platforms, i would trust evo with knowing what they are doing. mid-range torque is great and speed is very much so about the area under and broadness of the torque curve, but when you are in the high end of the powerband, you don't want your power dropping off. i do not want to ignore area under the torque curve, as that is just as much, if not moreso, a determinant of acceleration figures and characteristics than peak horsepower, and i realize that mid-range torque would definitely help the acceleration of the 996. i am just saying that the 996 n/a motor never really was all that torquey in character, and i think that out of all the supercharging options, centrifugal supercharging produces a powerband truest to the 996's intrisic powerband.

something i think one should consider is evo's mass presence on the forum and wide customer base. that goes to help if one ever encounters problems with their SC (i do not intend to imply that it is problem-prone), the forum will serve as a great asset because you can compare experience with many fellow users and also evo has a vested interest in public information of their product on the forum. that is to say, if you report a problem on the board, i am sure that evo would take care of it. plus look at how many satisfied evo owners there are on the board, from 996's to turbos to 997's. not to say that TPC isn't a great blower. i'm sure it is a great product as they seem to be racing a lot and such a company would not sell something not up to their standard. they do make great power. personally, however, my money would go to the EVO charger for several reasons. the actual product has been used by more customers. many people (especially 996turbo people) have poured 10's of thousands of dollars, some probably over $50k, into products from evo, entrusting their fine, expensive porsche into their hands. the actual company has a great reputation (not to say that TPC doesn't) accrued by positive reviews of many customers, both regarding service and product. not to mention the use of (widely used, with which many have had success) giac tuning. granted this could be a little biased becacuse TPC as a company is not as represented on the forum, but, if i were to invest $10+k on my $50-90k 996, i would want a product from a company with a solid customer network with whom i could communicate. also, since evo is on the boards, it is easy to contact them to address any problems right away. as it was reported, TPC is often racing, so customer support via internet access would make the vendor more convenient to communicate with. moreover, i would advocate the centrifugal style of supercharging moreso than roots-blower with the 996 n/a engine due to its powerband characteristics and thermal efficiency due to its intrinsic design.

as a side-note:

take a look at the supercharged amg's, mid-range torque is great for acceleration, but if you look at the torque curves, they tend to drop off close to redline. there are many other things changed with the 6.3 v8, and other factors to be considered (higher revving somewhat allowing improvements in more agressive gearing, new technology, etc.) in accompanying the (relatively) high-revving character of the n/a motor. but my main focus is that their new engines with peakier power at higher-rpm's vs. old supercharged with more low-mid range torque. numbers for numbers, mercedes amg would not let their new generation of 63 cars be slower than the current blown 55's, and with relatively the same hp but less torque, the 63 is compensating for acceleration somehow. i suspect it is likely due to the nature of the powerband (along with improvements in technology, gearing, traction, etc) given that they achieved this through n/a tuning - producing a powerband more comparable in nature to the 996 n/a motor (peakier, higher-revving, less reliant on torque) which the evo s/c (and centrifugal in general) more closely seems to emulate than other tuners/configurations of s/c's. that said, i admit that is a somewhat ineffective comparison because there are so many other factors (cooling with respect to space of intercooler / mounting of lysholm blower in amg's case) and no benz is at all like any porsche. i'm focusing more on respective powerbands of n/a vs. positive displacement supercharged in the case of modern mercedes amg v8's, and somewhat relating them to the way power is delivered with the two disputed superchargers.

that said, if you can at all, just get a 996 gt3 or 997s or 996 turbo . just my opinion.


kevin

 

Sounds easy... so make it

 

Okay.

Psst... I already started

-shiv

 

Psst I know! Good luck... you'll find the Bosch Motronic ECU to be wayyyy more complex than the EVO or Subaru ECUs. Piggybacking didn't prove to be a good idea what with PSM and such getting messed with. The knock supression is absolutely fantastic and even cars with 1000HP don't disable that stuff. I know Unichip tried the whole piggy back system and it um... well... you get the idea. Also unlike the subi's/evo's the 996s vary so much even year to year in terms of all the variables but I'm sure you already know that. Anyways that's just the software side of the fence I know you're going to have a lot of "fun" on the hardware side

 

That was an interesting write up Kompressor Kev. Do you work in the industry? You seem to know a lot about these cars with regards to forced induction.

 

thanks. no i'm not in the industry at all, just an avid car enthusiast =) just been doing a lot of reading, about my own car's engine as well. but i did a presentation on supercharging in physics once good luck with your decision, either option will make your car seriously fast

 

i actually went out and bought one today made me chuckle after reading 1999's post.