Does anyone have any idea about how much rwhp and rwtq should be made with the aftercooled vortech kit with a set of headers and a granatelli maf.? just an approximation would be good. its going on a 98.

 

MTI and several others have reported a 140RWHP gain from the Vortech 9# Aftercooled kit with proper tuning. Install some headers, and add another 20. So 300 + 140 + 20 = 460RWHP.

Just one word of advice, though. If you're gonna be taking this car to the track at all, your money will be well spent on a 12-bolt rear-end first. Because as soon as you hook up on 460RWHP, you can kiss the factory 10-bolt goodbye. Then you'll be stuck with a broken rear, in addition to the $6K you just shelled out for the Supercharger.

Also, the Granatelli MAF is not recommended for use with the Vortech Supercharger.

Happy Racing!
<img border="0" alt="[chug]" title="" src="graemlins/gr_chug.gif" />

<small>[ December 15, 2002, 11:49 PM: Message edited by: Crunch ]</small>

 

i made 463Rwhp and 430RWTQ with the stock vortech kit, off road y pipe and ed wright dyno tuning. I installed mac headers, ls6 intake, and 2.75" pulley. I dynoed 576RWHP and 530 RWTQ on a stock bottom end. i just put on heads and cam and gained nothing but lower boost pressure.
With the 463 RWHP i ran 11.7@120 1.7 60' on slicks and stock clutch and stock 10 bolt 3.42's.
You don't have bost off of the line, so you have stock engine power until it hits. Your rear end can handle that abuse for a while as long as you don't change gear ratio's. Heads avd cam are a waste unless you upgrade to a t-trim or bigger.

 

Also: JEGS has the vortech G-trim kit for $4400.

 

how safe is 13lbs of boost with that 2.75" pulley,, sounds like a good investment from 460 to 560 just with a pulley or did you get new injectors or was that on the 38lb's that come in the kit? <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" />

 

I never saw 13# when I put down the 576 I still had the 38# injectors and was getting 12# of boost running extremely lean 14.1:1. I have now put in 50# injectors and did stage 3 heads and 02 ls6 cam I gained nothing and holding steady at 9# of boost also I am now running pig rich at 9.1:1. Also the jump to 576 rwhp was with ls6 intake mac headers and 2.75 pulley added. I am waiting to get ls1 edit to do my own tuning. I hope by getting the a/f leaned out I will get 600+ rwhp

 

ok if i wanna see that kind of power, can i keep using the 28lb inj. i have a full exhaust(mac headers) ect. now. whats the PN# on that pulley and if i get it tuned you think they could take care of that lean problem>?

 

i ment 38lb injects... long day

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Kyle:
<strong>i ment 38lb injects... long day</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I am still using the 38lb injectors and made 544RWHP, but I am using alky injection. With an A/F of around 11:4.1

Jason

 

how do you like that holley intake and fill me in on the details of the alky injection.

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Kyle:
<strong>ok if i wanna see that kind of power, can i keep using the 28lb inj. i have a full exhaust(mac headers) ect. now. whats the PN# on that pulley and if i get it tuned you think they could take care of that lean problem>?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">You can still use the 38lb injectors. U can widen the pulse width or increase fuel pressue. I upgradded to the 50 lb's because 576RWHP is just my stepping stone to 800RWHP. Then i would need the bigger injector. I don't know the part #. You will need to open up your exhaust. I have mac headers and off road pipe, stock cat back with a flowmaster muffler. First hard run with the smaller pulley, I split the muffler open at the seams.

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Kyle:
<strong>how do you like that holley intake and fill me in on the details of the alky injection.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">The holley intake is pretty sweet. The alky injection allows me to run more boost and timing on 91 octane. It lowers the IAT more than 100 degrees. Before the alky I was only running about 18* of timing and 7lbs of boost. Now I am able to run 26* and just under 12lbs with no KR.

If I do end up selling my blower...I would include everything I have for it....in the price.

Jason

 

so 576rwhp is achieveable with the 38 lbs if the fuel pressure is modded and band with right,, so if i go for a tune you think they could do that so im running a safe a/f

 

so 576rwhp is achieveable with the 38 lbs if the fuel pressure is modded and band with right,, so if i go for a tune you think they could do that so im running a safe a/f ???? <img border="0" alt="[Driving]" title="" src="graemlins/gr_driving3.gif" />

 

You can probably use the 38lb injectors with tuning. You shouldnt need to raise fuel pressure to tune it right.