That's why I mentioned him, to emphasize the need for a very strong bottom-end in such a high hp motor and to get this thread back on topic, assuming that anyone has anything more to say about a potential X trim or XX trim LT1 project. Again, we encourage you to try it.

 

again, our LT1 YSi combo with a/a intercooler and NO NITROUS went 160mph in a 3420lbs car... thats about 1000rwhp... an x-trim will make a little more than that..

 

Its not fair to compare manuals to auto trannies...

That car that runs 8.7@156 has a higher level of modification and $ to make those numbers than the other one... the tranny just robs of power TO THE DYNO, but shows it on the track...

For drag racing you shoot for numbers... i shoot for HP because I dont plan on being on the track often... Thus I equate the power to a time of similar car with similar mods... Its not fair to compare power of an auto vs a manual.. on a dyno day the manual will probably win, but on a track day it wont (with the high stall converters!!!).

I've seen 530rwhp cars do 9s@142mph on 3200 race weight... that doesn't sound like a 530rwhp car to me

 

my auto robs 22% power.... this was confirmed with engine dyno numbers... car makes 1044fwhp minus 22% at 815rwhp... this is the norm with unlocked autos in my experience

 

Ok my question is what is the purpose of have a 800-900 rwhp street car? I mean I know they are fun and all but in my opinion it is not very pratical.

 

Believe me, I will.

To tell the truth, the big mystery for me on this project is what I will use for a cam.

The bottom end issue is just a question of using the right recipe. The cam specs are going to be problematic, because of the nature of my idea.

 

Tried to make this very point a few weeks ago on a different thread regarding the YSI trim (which we own), and was attacked visiously by a couple of our regular antagonists.

It's not so much a question of whether or not you could drive a YSi, X or XX trim on the street, as it is "why try." Our SQ trim, A4 car was uncontrollable on the streets under full throttle with BFG 315s. On the otherhand, you could do some rolling start racing on the freeways with these big blower cars, I guess.

 

I was just more or less curious. I mean a 800 rwhp car is extremely cool but I would hate to drive that bad boy in rain.

To the poster I am sorry for hijacking your thread.

Also I am not trying to start a flame war. I am just curious.

 

My YSi pump gas mustang is extremely streetable... makes over 550rwhp through a unlocked auto and runs low 10s in the 1/4.... it is pullied for 10-12lbs of boost... why, you ask?? well, because this blower will allow me to change pulleys and gas and go run a LOT faster... why spend the money on a toyota when you can have a cadillac?? My car idles at 1000rpm, gets the same gas mileage that it would with an S-trim, and is fun to drive..

BTW, no one attacked you.. you just dont have enuf experience in the forced induction field and some of the statements you make are incorrect.

 

Dyno numbers are just a tool. I think in this context we were just using them as a reference point. I would never argue that track results weren't the most important point. but in this thread we were given a question to discuss and the question was specifically about horsepower. If the question would have been what do you think this combo would run at the track, we'd be discussing that. Yes we got off topic, but it was a fairly interesting discussion. I just get tired of the implication that if your car hasn't run 8s you're not worthy of discussing the issues. We all have to start somewhere. For the most part I keep my mouth shut and try to learn from these discussions. Sometimes I make the fatal error of trying to participate.

What's the famous line?--- "It's better to be silent and have people think you are stupid, than to open your mouth and remove all doubt..."

 

highlander and idoxlr8 have very valid points.. they dont run 8s... but when you tell people that a YSi is not designed for the street, some people may believe you... this hinders sales for the YSi... obviously, some people dont remember that LIVE people work at Vortech and have families to feed too...

If one person believes the YSi is not streetable or a street blower, they tell 20.... THATS NOT THE CASE..

 

The reality is that it WILL NOT be a daily driver.. because, yes, what is the point on having 700rwhp if you are on a traffic jam...

BUt i do like taking highway and just plain cruising.. I had 600rwhp and somehow felt i needed more power... Rain is dangerous but its something that can be controlled if you are not stupid...

There are many fast cars around here and it so happens i want to be the faster of them...

I still want to be able to widstand a 2 hour traffic jam with my A/C on.. .since that is what a true street car is, yet be able to get to the track or wherever and run what i brung and i will be sure i have brung enough...

THe other thing... the track is not indicative of how a car drives and how a car performs... When my car was stock it did only 14.66@98mph... do you have any idea how many cars I beat that where in the 13.5@105mph range???? maybe my car liked running over 100mph

 

I don't want to take the food from the mouths of the Vortech employees children (though it may save them a few 10ths down the road... ) , but I wonder if we sent an email to Vortech from their website and asked if the YSi was a supercharger designed for the street, I wonder what they'd say?

Regardless, I don't think the discussion here is going to hurt Vortech's sales. The reason I went with a supercharger to begin with was their ability to perform like crazy and still be streetable. It's not something I disagree with.

 

i encourage you to contact VORTECH and ask them if the Ysi is a supercharger designed for the street... I have had my daily discussions with them regarding that very question.. the answer is YES... it has an EO# (smog number) and is the head unit included for their sbc carburator kits...

 

completely agreed...