Z8's (chris) car makes over 900rwhp..... this in unlocked t400, small a/w, hydraulic roller cam, and stock lt4 heads/intake... this is also proven by the 159.64mph trap speeds accomplished at 3450 race weight...

I have made well over 800rwhp with 306, hydraulic roller, NON intercooled, serpentine belt driven, unlocked auto with 6200 stall converter, YSi combo... it is common day in the renegade world of mustangs..

My street car, with 93octane, run a YSi making 11lbs of boost (3.33 pulley upper and 8 inch lower)... i spin the car to 6200rpm and it will run bottom 10s all day long on pump gas...

The YSi is a very versatile blower... it is the head unit included in MANY street kits ranging from BBC carb kits to 5.0 mustang tuner kits... Vortech has spent a ton of money to have the YSi Smog certified.. It was DESIGNED for the street...

The YSi is the blower to purchase... you can grow into the capabilities and not have to spend another dime..

my car can be located on the vortechsuperchargers.com webite frontpage..

thanks

 

This is your first post.. congratulations and welcome to the forum..

What about running in the range of 700-720rwhp@12-13psi boost.. how does it handle boost down low? does it create enough boost down low?

THanks

THat was also one of my major concerns and why I chose the T-trim. Although I feel that at the same Peak HP (700s)level the YS should be more efficient than teh T and that should be a lot more power from the YS, but really unsure as I have not tested it yet.

 

i believe 700rwhp on pump gas with no cooler etc is a little out of range... the YSi's impeller was created for low rpm boost.. like i said, it is the best of all worlds.. Good low end, great mid end, and even better top end..

FYI, i tune and drive Z8's LT1 camaro and I have been involved with forced induction for over 10 yrs..

thanks

 

Looks like we've confirmed that everyone has a different view of the topic. Not surprising.

 

Good to know... 700rwhp with vortechs aftercooler... I will use a tank located in the trunk.

Now im interested in a YS-trim... I always thought that the YS trim was a little lazy from what mustang guys tell... and that the Novi 2000 was better in that dept

 

actually, it is completely the opposite... I ran a novi 2000 for 3 yrs while being sponsored by Paxton... I am very familiar with the Novi and the datalogger showed that the Novi had about a 3lbs drop off on the gear shift compared to the YS or YSi...

You may be confusing your info with a "Y" trim from back in the day..

 

YSi just came out in the late fall of last year so the YS has been going high 8's and low 9's in Renegade for over two years.

 

No, not confusing, just retelling what I read on the mustangs forum... But, since now there are more people running them I guess it wouldn't be such a problem..

I wonder how the YS-trim will perform with vortechs aftercooler, since its 3" only. There is a guy here that did 752rwhp with the vortech aftercooler and a ys-trim.. his car was white.. I cant remember his name.

 

I was thinking about the Novi 2000 also, since it has helical cut gears like the V2. Maybe that is the reason for the boost drop off during shifts.
Anyway, same story. Paxton don't make a bracket for the LT1. Neither does Vortech for the YS or YSi. Go figure. It couldn't be that hard, could it?

 

Well if you "modify" the vortech one you could convert it into a Novi bracket.. how hard can it be? i mean... If bob bishop makes brackets for c5 brakes, why cant a single or dual plate bracket be made similar to the S/T trim to support a novi?

Anyways the S/T-trim bracket can be modified to accept a YS-trim which is what people have been doing.

 

Z8's ran modified S trim brackets for a long time before coming out with his custom brackets.

 

The Highlander-
whats cool about FI, is you dont have to build a setup that only gets 13mpg to make 800+rwhp! my turbo 383 got over 20mpg on the highway, and 16 or so in the city depending how I drove it.

Also, with ablower you can easily just not shift as high and/or pull timing to run the car on the street. With my turbo it was even easier, only run 12psi (660rwhp) on pump fuel, and then turn it up if I wanted to faster. I am pretty sure I coulda made 700rwhp on pump gas, but never had the chance to try.

 

Actually my goal is to do 690-705 on pump gas... @ 12psi or so on boost...
And then im done

But... I will hope and see if that mark is possible on pump gas and 8.8:1 CR.