ET/MPH: Vortech vs. ATI
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Teching In
Joined: Aug 2002
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From: Cridersville, OH
ET/MPH: Vortech vs. ATI Wanting to see some comparison of the two "big boy" blowers. I've been thinking of going turbo from some time, but I'm leaning towards a blower again..... just something new to try after owning my GN for 7yrs. It seems like the few Vortechs that I come across are putting down sic numbers. This would be going on a 2k SS 6spd.
Thanks!!
Thanks!!
On The Tree
Joined: Dec 2002
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From: Stalking the streets of Maryland
Re: ET/MPH: Vortech vs. ATI Wouldn't it be easier just to compare dyno charts? ET/MPH can depend on so many outside factors. But a Dyno is much simpler to look at. All you have to do is take into consideration the cars other mods. But that's just a suggestion.
BH
BH
TECH Enthusiast
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From: Columbia, MD
Re: ET/MPH: Vortech vs. ATI In terms of maximum flow CFM, the Vortech V9 G Trim flows 800cfm, whereas the ATI D-1SC flows a max of 1400. The potential, therefore, for maximum horsepower lies with the the ProCharger. However, when you look at all of the supercharged LS1's around, very few actually have the bullet-proof shortblocks that can take advantage of this potential. Most people are just running the supercharger on stock heads/cam/internals (~450RWHP), a few are running aftermarket heads/cam along with the supercharger (~500RWHP), and fewer still are running bullet-proof motors WITH aftermarket heads/cam (~600+RWHP).
Given two identical bullet-proof shortblocks, there's no question that the ATI D-1SC will out-perform the Vortech V9 G-Trim.
But how many people do you know with invincible iron blocks that can run mad boost?
(Black LS1 T/A, TByrne i think).
For all the rest of us regular folks, I think the results at the track and on the dyno will be roughly the same, given similar boost levels, and similar bolt-ons.
Given two identical bullet-proof shortblocks, there's no question that the ATI D-1SC will out-perform the Vortech V9 G-Trim.
But how many people do you know with invincible iron blocks that can run mad boost?
(Black LS1 T/A, TByrne i think).
For all the rest of us regular folks, I think the results at the track and on the dyno will be roughly the same, given similar boost levels, and similar bolt-ons.
TECH Fanatic
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From: Centrifugal City
Re: ET/MPH: Vortech vs. ATI Compare the D1-SC to an S-Trim or T-Trim. Also consider the cfm losses blow thru 14 feet of intercooler tubing vs. 2 feet of air/water tubing. The G-Trim sucks, relatively.
TECH Fanatic
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From: Centrifugal City
Re: ET/MPH: Vortech vs. ATI For the F-Body the out of the box Vortech V9 G-Trim sucks which is why I think so many go ATI. If the F-Body bracketry supported the S-Trim I think more would go that route. No Fan issues.
Then again the F-Body pulley system isn't quite as good as the Vortech C5 setupw with a secondary cog built in. The C5 kit is amazingly perfect.
Then again the F-Body pulley system isn't quite as good as the Vortech C5 setupw with a secondary cog built in. The C5 kit is amazingly perfect.
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From: Columbia, MD
Re: ET/MPH: Vortech vs. ATI </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"><strong> For the F-Body the out of the box Vortech V9 G-Trim sucks which is why I think so many go ATI. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">It doesn't suck, dude. Don't blaspheme.
The 1998-2002 Vortech F-body kit has its limitations, but will surely satisfy 95% of LS1 street-racers' need for speed. With a good tune, you can easily squeeze 140RWHP from the G-trim kit; a little more if you swap pullies and belts. True, it would have been better if they went with a more powerful impeller. But I went with this kit because I wanted great power, cool looks, I didn't want to use Nitrous, and I didn't want toilet sewage pipe all up under the hood of my car (it looks like ****). But, hey, to each his own. <img border="0" alt="[boring]" title="" src="graemlins/gr_zzz.gif" />
Later...
The 1998-2002 Vortech F-body kit has its limitations, but will surely satisfy 95% of LS1 street-racers' need for speed. With a good tune, you can easily squeeze 140RWHP from the G-trim kit; a little more if you swap pullies and belts. True, it would have been better if they went with a more powerful impeller. But I went with this kit because I wanted great power, cool looks, I didn't want to use Nitrous, and I didn't want toilet sewage pipe all up under the hood of my car (it looks like ****). But, hey, to each his own. <img border="0" alt="[boring]" title="" src="graemlins/gr_zzz.gif" />
Later...
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Moderator
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From: Raleigh, NC
Re: ET/MPH: Vortech vs. ATI If you want good, solid power, but the cool look of a SC, Vortech is definitely the choice.
ATI is more for an OEM look, and it is marginally better performance-wise, IMO.
There ARE always two sides, and more than one way to skin a cat. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
ATI is more for an OEM look, and it is marginally better performance-wise, IMO.
There ARE always two sides, and more than one way to skin a cat. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
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Re: ET/MPH: Vortech vs. ATI id rather go with an ATI unite just for the simeple fact there kits are making more power than the vortech unites and they come with intercoolers. The fact the Votechs kits do not come with aftercoolers and do not put out the numbers that ATI does leans me towards them. Example look at the kit that Vortech made for the c5, Granted it made 494rw and 497rwtq wich is fine but when ATI shows up and puts out 540rw it kind of makes you wonder. Or it could be just me <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
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Re: ET/MPH: Vortech vs. ATI If I was going back to supercharged FI I would do the following:
S or T trim vortech with a belt setup that wont slip at 12-15#'s boost.
(Stock fans/cooling maintained with above setup which is a big bonus)
Custom 4 core front mount air to air intercooler
Solid intake tube with bigass concial K&N.
Dual intank 340 pumps, custom lines/rails/return, 50# injectors, AFPR
LS1 edit tuning
5.3L heads opened to 9:1 compression with headstuds and good gaskets.
Longtubes with 3 inch collectors and 18 inch extensions for the track.
the above setup has the potential to run 9's in a six speed without problem.
Cheers,
Chris
S or T trim vortech with a belt setup that wont slip at 12-15#'s boost.
(Stock fans/cooling maintained with above setup which is a big bonus)
Custom 4 core front mount air to air intercooler
Solid intake tube with bigass concial K&N.
Dual intank 340 pumps, custom lines/rails/return, 50# injectors, AFPR
LS1 edit tuning
5.3L heads opened to 9:1 compression with headstuds and good gaskets.
Longtubes with 3 inch collectors and 18 inch extensions for the track.
the above setup has the potential to run 9's in a six speed without problem.
Cheers,
Chris
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From: Columbia, MD
Re: ET/MPH: Vortech vs. ATI </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by MEAN LT1:
<strong> The fact the Vortechs kits do not come with aftercoolers and do not put out the numbers that ATI does leans me towards them. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">My kit comes with an aftercooler. In fact, my mechanic is bolting it on right now. My goal is 525RWHP. Before the Vortech, I dyno'd at 405RWHP (stock tuning, 12-bolt). So all I need is another 120RWHP out of this kit. I don't think that's too much to ask. And if I need more, I can drop in a set of forged pistons and rods, and change to the 2.85" pulley.
I also had them drop in a set of 4.10 gears, the Harlan 2-Step, a 6-point roll-bar, 28" ET Drags, and ET Fronts. When the track opens in a few weeks, I'll have some timeslips to back up the dyno numbers, and help put some faith back in this kit.
Nay-sayers beware... <img border="0" alt="[evil]" title="" src="graemlins/gr_devil.gif" />
<strong> The fact the Vortechs kits do not come with aftercoolers and do not put out the numbers that ATI does leans me towards them. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">My kit comes with an aftercooler. In fact, my mechanic is bolting it on right now. My goal is 525RWHP. Before the Vortech, I dyno'd at 405RWHP (stock tuning, 12-bolt). So all I need is another 120RWHP out of this kit. I don't think that's too much to ask. And if I need more, I can drop in a set of forged pistons and rods, and change to the 2.85" pulley.
I also had them drop in a set of 4.10 gears, the Harlan 2-Step, a 6-point roll-bar, 28" ET Drags, and ET Fronts. When the track opens in a few weeks, I'll have some timeslips to back up the dyno numbers, and help put some faith back in this kit.
Nay-sayers beware... <img border="0" alt="[evil]" title="" src="graemlins/gr_devil.gif" />
Re: ET/MPH: Vortech vs. ATI Brian aka Gold Formula was the first Vortech/9spi guy in 1999/2000 to really mod a supercharged LS1.
He was going 11.1@122 or 123mph with headers, stall, gear, big'n littles... He had his car out a the GMHTP shootout in TN and went 11.5 at 4800 DA.
His setup could be easily replicated into a 10.8 combo today, if not faster.
I see a lot of D1 and G-trim guys clustered around in the low 11's. G-trim is a smaller blower but the Vortech kit is pretty darn efficient.
<small>[ February 18, 2003, 10:19 AM: Message edited by: Pro Stock John ]</small>
He was going 11.1@122 or 123mph with headers, stall, gear, big'n littles... He had his car out a the GMHTP shootout in TN and went 11.5 at 4800 DA.
His setup could be easily replicated into a 10.8 combo today, if not faster.
I see a lot of D1 and G-trim guys clustered around in the low 11's. G-trim is a smaller blower but the Vortech kit is pretty darn efficient.
<small>[ February 18, 2003, 10:19 AM: Message edited by: Pro Stock John ]</small>
