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 Post subject: PRO SYSTEMS SV!
 Post Posted: Thu Jan 05, 2012 7:54 am 
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WHAT DO YOU THINK ABOUT IT?

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 Post subject: Re: PRO SYSTEMS SV!
 Post Posted: Thu Jan 05, 2012 8:28 am 
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:-
Alot of guys have tried them most don't work and some do..
Honestly if I could get one for no cost to try I would try it like
anyone else would I guess but I am just to happy with my
1150 with the info from members here.... =;

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Last edited by Beretta on Thu Jan 05, 2012 8:32 am, edited 1 time in total.

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 Post subject: Re: PRO SYSTEMS SV!
 Post Posted: Thu Jan 05, 2012 8:31 am 
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That junk has already been discussed here. Here's the link.

viewtopic.php?f=6&t=6894

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 Post subject: Re: PRO SYSTEMS SV!
 Post Posted: Thu Jan 05, 2012 11:58 am 
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Here is the dyno sheets from the BLP Carb Challenge. The engine was a 700 HP Mullins Racing Engine 430" small block.

This is my dyno runs with the 1050 I built pictured in my signature.

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This is the POW entry 105 mm SV! tuned by Dave Braswell. A 95 mm version was run later just to test it out of the box but it was worse than the 105 mm.

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 Post subject: Re: PRO SYSTEMS SV!
 Post Posted: Thu Jan 05, 2012 7:24 pm 
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Its not working as good as Marks is it. It's very wrong in the 3rd run, one bank is vastly different to the other in AFR but there closer on the first 2 runs. None of the runs are anywhere near consistent enough AFR across the pull.


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 Post subject: Re: PRO SYSTEMS SV!
 Post Posted: Thu Jan 05, 2012 8:01 pm 
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Between the last two SV! runs they went from a .029 MAB to a .031, it killed it everywhere. Not surprising though how sensitive it is with no booster amplification.


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 Post subject: Re: PRO SYSTEMS SV!
 Post Posted: Thu Jan 05, 2012 9:03 pm 
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Well that just shows what they know about air bleeds doesnt it.


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 Post subject: Re: PRO SYSTEMS SV!
 Post Posted: Thu Jan 05, 2012 10:44 pm 
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No wonder it seems like all the stories I hear about those carbs are so hit or miss. Seems like a really fine line for tuning if .002 on the MAB did that.

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 Post subject: Re: PRO SYSTEMS SV!
 Post Posted: Thu Jan 05, 2012 10:46 pm 
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I think they were trying to lean it a little more than the prior run, figuring the bleeds would make a smaller change than a jet change. Didn't work. Frankly I would have put a .014 MAB in, taken almost all emulsion out, and then jetted it to suit. But what do I know... :-k


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 Post subject: Re: PRO SYSTEMS SV!
 Post Posted: Thu Jan 05, 2012 11:26 pm 
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Its an interesting design, Its different, and I think that's what attracts people to them. I have yet to see any data of it having any advantage over a 4 barrel carb of equal size. Seems like ever comparison I see, the SV! has a significant flow advantage over the carb it was replacing. :-k

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 Post subject: Re: PRO SYSTEMS SV!
 Post Posted: Fri Jan 06, 2012 9:41 pm 
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I heard one SV! make two pulls at the Carb Challenge. After a few days listening to some of the smoothest sounding pulls imaginable this one sounded as if it had some serious issues. It didn't smooth until the end of the run after both attempts.


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 Post subject: Re: PRO SYSTEMS SV!
 Post Posted: Sat Jan 07, 2012 1:54 am 
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When I heard Marks run I knew it was heaps better than the 2 runs I heard before and all the others after it. I didnt hear all the competitors though. Nomad is getting skills.


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 Post subject: Re: PRO SYSTEMS SV!
 Post Posted: Sat Jan 07, 2012 9:28 am 
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shrinker wrote:
Nomad is getting skills.

We are working on him... =; Spending time in a dyno cell gives you some new things to look at and listen to, and Bruce/nomad has been able to spend a fair amount of time there recently. I guess sometimes it's nice to be retired.


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 Post subject: Re: PRO SYSTEMS SV!
 Post Posted: Sat Jan 07, 2012 11:12 am 
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http://www.yellowbullet.com/forum/showt ... p?t=428386


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 Post subject: Re: PRO SYSTEMS SV!
 Post Posted: Sat Jan 07, 2012 11:43 am 
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Scott Smith wrote:
http://www.yellowbullet.com/forum/showthread.php?t=428386


Yeah well, that link is OK if you just want to read where ppl are bashing that carb, ie, just stating that it didn't work but not giving any specifics but this thread actually has data from the dyno so ppl can SEE how horked up it is. Keep in mind that most of these guys at the Challenge were "professional" carb builders so if they couldn't get it to work worth a damn with plenty of data to tune by then what would make anyone think that the average Joe could on his bracket race engine with no data?

The post link I put up the page was from jmech's engine that was dnyoed as well and a 1050 made more power than the SV! but I don't remember seeing dyno sheets posted for all to see? :-k He did finally send his back and swapped it for a 1050 I think.

Ennywho, I guess when you got data to show you really don't need to do any "bashing" as the data will speak for itself. :-k And just think, I almost deleted this post when it first showed up. :-

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