Ysi to small for 408
Ysi to small for 408 Just looking to understand why the experts say a ysi is to small for a 408
Mine is making 22-24 psi on my 408'and my car went 8.8 @157 ....so why would
The ysi be to small??
Thx
Mine is making 22-24 psi on my 408'and my car went 8.8 @157 ....so why would
The ysi be to small??
Thx
TECH Apprentice
Joined: Feb 2012
Posts: 360
Likes: 3
From: Montreal
Which experts are saying its too small..... you looking for excuses to go bigger again.... rofl.
TECH Apprentice
Joined: Feb 2012
Posts: 360
Likes: 3
From: Montreal
No clue... I guess there is always bigger, but can the motor take more anyways ? Can a bigger blower run on a serpentine, or does it mean going cog ? How much more and at what expense. You ran 8.82 after a few runs on the build. It must have more in it with the right tweaks.
Not looking for a bigger blower....just need to understand why they think it?
Tweaks are a big whole in the hood a solid roller conversion big water to air coolers ....bigger heads and secret sauce
Tweaks are a big whole in the hood a solid roller conversion big water to air coolers ....bigger heads and secret sauce
Last edited by c5mtl; Mar 15, 2015 at 02:01 PM.
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Restricted User
Joined: Mar 2014
Posts: 7,192
Likes: 109
From: Ohio
The YSI is a V7 series. Some of the V4 and any of the V20-series are much larger.
Here is a chart.
http://www.vortechsuperchargers.com/scspecsheet.php
Here is a chart.
http://www.vortechsuperchargers.com/scspecsheet.php
Last edited by JoeNova; Mar 15, 2015 at 02:56 PM.
Restricted User
Joined: Mar 2014
Posts: 7,192
Likes: 109
From: Ohio
Not necessarily. It shows lots of info about your current blower, and your upgrade options should you stick with a Vortech. I did forget to post the chart, though. I'll go back and edit that one.
If they're saying that the YSi is too small, its because they probably think the compressor efficiency is going to suffer. While they may be right, they can also be wrong. You'll get more HP out of a YSi with a slightly smaller motor, but at the same time you can certainly hit your goals with a YSi.
Not necessarily. It shows lots of info about your current blower, and your upgrade options should you stick with a Vortech. I did forget to post the chart, though. I'll go back and edit that one.
If they're saying that the YSi is too small, its because they probably think the compressor efficiency is going to suffer. While they may be right, they can also be wrong. You'll get more HP out of a YSi with a slightly smaller motor, but at the same time you can certainly hit your goals with a YSi.
If they're saying that the YSi is too small, its because they probably think the compressor efficiency is going to suffer. While they may be right, they can also be wrong. You'll get more HP out of a YSi with a slightly smaller motor, but at the same time you can certainly hit your goals with a YSi.
9 Second Club
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
Based on the only compressor map Ive seen for a YSi, which also only shows it to around 50,000rpm....you'd think almost every engine is way off the efficient operating range for the YSi
But most just spin the crap out of them and still produce great results. But yes this can also result in lots of hot air ( and yes a 75 shot would help lol )
The next step up with the same bracketry is the XB110, but it's a pretty huge step up. If Vortech had any sense they'd make a smaller 105mm with a smaller frame which would be easier for people to install.
At least Procharger offer a very wide range with lots of units at different levels to choose from.
So far any talk I've seen about the new billet wheel for the YSi seems it offers very little benefit.
But most just spin the crap out of them and still produce great results. But yes this can also result in lots of hot air ( and yes a 75 shot would help lol )
The next step up with the same bracketry is the XB110, but it's a pretty huge step up. If Vortech had any sense they'd make a smaller 105mm with a smaller frame which would be easier for people to install.
At least Procharger offer a very wide range with lots of units at different levels to choose from.
So far any talk I've seen about the new billet wheel for the YSi seems it offers very little benefit.
Based on the only compressor map Ive seen for a YSi, which also only shows it to around 50,000rpm....you'd think almost every engine is way off the efficient operating range for the YSi
But most just spin the crap out of them and still produce great results. But yes this can also result in lots of hot air ( and yes a 75 shot would help lol )
The next step up with the same bracketry is the XB110, but it's a pretty huge step up. If Vortech had any sense they'd make a smaller 105mm with a smaller frame which would be easier for people to install.
At least Procharger offer a very wide range with lots of units at different levels to choose from.
So far any talk I've seen about the new billet wheel for the YSi seems it offers very little benefit.
But most just spin the crap out of them and still produce great results. But yes this can also result in lots of hot air ( and yes a 75 shot would help lol )
The next step up with the same bracketry is the XB110, but it's a pretty huge step up. If Vortech had any sense they'd make a smaller 105mm with a smaller frame which would be easier for people to install.
At least Procharger offer a very wide range with lots of units at different levels to choose from.
So far any talk I've seen about the new billet wheel for the YSi seems it offers very little benefit.
Here is a link
http://www.s197forum.com/forum/showthread.php?t=119601
9 Second Club
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
There will always be buyers for the cast impellers when people damage them.
In the absence of an upgrade I'd asked them for for almost 3 years, I finally went turbo instead.
Even though the XB110 was out for a while, I could barely even find reports of anyone using one, and they insisted they werent making a similar unit in a 105mm.
**** it, there are loads of turbo options !
In the absence of an upgrade I'd asked them for for almost 3 years, I finally went turbo instead.
Even though the XB110 was out for a while, I could barely even find reports of anyone using one, and they insisted they werent making a similar unit in a 105mm.
**** it, there are loads of turbo options !
Last edited by stevieturbo; Mar 15, 2015 at 08:03 PM.
There will always be buyers for the vast impellers when people damage them.
In the absence of an upgrade I'd asked them for for almost 3 years, I finally went turbo instead.
Even though the XB110 was out for a while, I could barely even find reports of anyone using one, and they insisted they werent making a similar unit in a 105mm.
**** it, there are loads of turbo options !
In the absence of an upgrade I'd asked them for for almost 3 years, I finally went turbo instead.
Even though the XB110 was out for a while, I could barely even find reports of anyone using one, and they insisted they werent making a similar unit in a 105mm.
**** it, there are loads of turbo options !
Staging Lane
Joined: Oct 2014
Posts: 54
Likes: 2
It,seems to vortech is a little slow to react ....more than a small group of us have out grown the ysi and kind of left with no option except prochargers or turbos. I have been following the billet upgrade since the get go and some say I will go faster and others say no difference . I took a chance and listed my cast impeller for sale and if it sells I will take a risk and try it. The hair dryer guys have been on billet impellers for a long time so Im sure I would see some gains by switching from a heavy cast to billet. .. I'm thinking the guy reporting no gains are the guys out cruising and expecting a rush of power at 3500rpms...lol....and not guys like me looking for 1/10 or 2 ......I recent cfm chart I spotted somewhere put the ysi billet at 1900cfm...is that possible
Here is a link
http://www.s197forum.com/forum/showthread.php?t=119601
Here is a link
http://www.s197forum.com/forum/showthread.php?t=119601
But for the most part if you're only looking for .1 or .2 gain I'd spray it unitl it runs the number you want as I did this with the d1sc.
street drive very little and 1/4 mile
right now im spinning it 68000 rpm impeller speed at the end of the 1/4
1st gear shift maybe 62000-63000 impeller speed cause im shifting a little early ...if I shift anywhere over 6400 the rear breaks loose on the 1-2 shift ...I would love to push it to 7000rpm on the shift this way I have less of a fall off
right now im spinning it 68000 rpm impeller speed at the end of the 1/4
1st gear shift maybe 62000-63000 impeller speed cause im shifting a little early ...if I shift anywhere over 6400 the rear breaks loose on the 1-2 shift ...I would love to push it to 7000rpm on the shift this way I have less of a fall off
TECH Enthusiast
Joined: Jul 2008
Posts: 577
Likes: 1
From: League City, Tx
The ysi typically is good for 1050-1100 rwhp, regardless of the engine size.. You can make this power with a 346 or a 427.. The difference is the power under the curve and how soon the power noses over.
So if you want more then 1100 rwhp, then you need a bigger blower.
We have a C6Z down here that is setup solely for drag racing, it went 8.40@163 with a ysi on a 427. That's the quickest/fastest Vette I've seen with a ysi.. So you know it's possible to go atleast that fast.. Your car will have to be very light and very efficient.
I think before I changed too much on your car, I would make more passes, track tune it see how quick it will go with what you have before throwing more parts at it. You may end up chasing your tail... (Ask me how I know)
So if you want more then 1100 rwhp, then you need a bigger blower.
We have a C6Z down here that is setup solely for drag racing, it went 8.40@163 with a ysi on a 427. That's the quickest/fastest Vette I've seen with a ysi.. So you know it's possible to go atleast that fast.. Your car will have to be very light and very efficient.
I think before I changed too much on your car, I would make more passes, track tune it see how quick it will go with what you have before throwing more parts at it. You may end up chasing your tail... (Ask me how I know)