GTS76 Turbo vs. YSI vortech
10-04-2004, 07:59 PM
#1
GTS76 Turbo vs. YSI vortech Talked more with Tom today and im thinking about swapping to the turbo setup so i can run pump gas@12psi and crank it up to 18psi at the track. What are you guys thoughts on which is better the turbo or ysi? Im thinking the car will be more street friendly w/ the turbo and put out more power. What do yall think?
10-04-2004, 08:15 PM
#3
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the tq on the turbo would be sick, it would mop the floor with the SC, just my opinion. My friend has a t76 on a bone stock motor at 7-8 psi and he makes 500tq at 3k rpm and holds it. So imagine your setup 10+ psi and a front mount
10-04-2004, 08:19 PM
#5
Originally Posted by 5-liter-eater
the tq on the turbo would be sick, it would mop the floor with the SC, just my opinion. My friend has a t76 on a bone stock motor at 7-8 psi and he makes 500tq at 3k rpm and holds it. So imagine your setup 10+ psi and a front mount
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10-04-2004, 08:55 PM
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Stock PCM...94 oct. and well some meth...Y body driveline so probably a lil lower than a comparable f-body. I plan to really start leaning on this thing in about month..with a set AFR's
10-04-2004, 09:05 PM
#9
Originally Posted by Earl H
Stock PCM...94 oct. and well some meth...Y body driveline so probably a lil lower than a comparable f-body. I plan to really start leaning on this thing in about month..with a set AFR's
10-04-2004, 09:18 PM
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Originally Posted by Hugger_99
Do you think i can hit those numbers on 93oct &12psi w/ stock pcm? I have TEA2 heads, LTs, upgrading to LSX 90mm intake/TB, and will be using Speed Incs turbo cam 242/250 .611/.619 114LSA? Think itll still be fairly streetable?
10-04-2004, 09:30 PM
#12
They havent given me the details of the setup yet cuz Toms still sorting it all out, i was just guessing.They only have 2 choices on their site. That one or 225/225 .581 .581 113lsa unless they custom grind a different one. I dunno what they are going with yet but i was assuming that bigger one. Do you think 700rwhp with 93oct and fast pcm is obtainable? Hopefully 800rwhp w/ 18psi, fast pcm, and race fuel. I dunno, maybe wishful thinking.
10-04-2004, 09:37 PM
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I actually think 800rwhp is obtainable with 18psi as my car sits right now. I did the 730rwhp @ 16 psi on a decent set of heads and a 221/221 , .558, 114lsa cam. I only spent about 15 minutes on that state of tune... a little more tuning and another 2 psi of boost and I believe I could come close. With your TEA heads (which are supposed to be excellent), I think that it is entirely possible at 18psi...again this is just my opinion. Regarding the cam, try cammotion ...a lot of the turbo mustang guys and some turbo LS1 guys that have turbo cars making some serious power, swear by cammotion cams. I say spec out a cam from them and order it (their pricing is pretty good).
10-04-2004, 10:55 PM
#14
got all kinds of stuff to start thinking about at those numbers... You can run 93 but you would have to spray the hell out of some meth to get those numbers and stay right. 60 motrons and a badass fuel rig is the only thing I would recommend you run with a stock pcm... Anything more and the computer wouldn't be able to handle it. Do you want these numbers all the time? Or just track... I know you want street drivability but those numbers are nuts for stock displacement... I'd like to make comparable power but I would never think of driving it all the time like that. Maybe just those days I felt like being a dyno queen 
10-04-2004, 11:57 PM
#16
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I dont want it to be a daily driver nor an all out drag car but i want to be able to enjoy it on the weekends around town w/o much trouble and then go to the track once a month and run a good number..Ive already got the motron 60s, Speed inc fuel system, and a 420pump. Im wanting at least the power i have now with the ysi (630rwhp) perferably more though but on pump gas instead of 106. Hoping it can be done with the stock pcm but we'll see, prolly have to go w/ the FAST. Then when i go to the track, i wanna be able to crank up the boost to around 18psi and run race fuel. Hopefully its possible
I dont want it to be a daily driver nor an all out drag car but i want to be able to enjoy it on the weekends around town w/o much trouble and then go to the track once a month and run a good number..Ive already got the motron 60s, Speed inc fuel system, and a 420pump. Im wanting at least the power i have now with the ysi (630rwhp) perferably more though but on pump gas instead of 106. Hoping it can be done with the stock pcm but we'll see, prolly have to go w/ the FAST. Then when i go to the track, i wanna be able to crank up the boost to around 18psi and run race fuel. Hopefully its possible
10-05-2004, 01:27 AM
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Question for those with the big turbos... can you guys get any traction on the street without running slicks? I have been trying to decide on a big supercharger like a YSi vs. a turbo for street and maybe some road racing, but was afraid the torque of the turbo would be too much.
10-05-2004, 09:35 AM
#18
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That cam is a typo....That should acctually be under the stroker section.
As far as the stock PCM thing goes I wouldnt worry about it too much right now Ryan, I've been talking to a few people and there is already some 2-bar MAP sensor/Stock PCM setups in testing.....if things go well I want to do even better on the tuner kit turbo car. Will not be as elaborate as a FAST setup but should get the job done.
As far as the stock PCM thing goes I wouldnt worry about it too much right now Ryan, I've been talking to a few people and there is already some 2-bar MAP sensor/Stock PCM setups in testing.....if things go well I want to do even better on the tuner kit turbo car. Will not be as elaborate as a FAST setup but should get the job done.
Last edited by Speed Inc Webmaster; 10-05-2004 at 09:42 AM.
10-05-2004, 10:28 AM
#19
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turbos are less street friendly because the power is not as linear as a supercharger, its an all or nothing effect, basically when the turbo spools up it will blow the tires off, especially in a high hp setup like yours.
For drag racing nothing beats the top end charge of a turbo car.
For drag racing nothing beats the top end charge of a turbo car.
10-05-2004, 10:30 AM
#20
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I would see how much www.ls1speed.com and that superchargersonline place sell a new YSi for, and then try to sell it for 75% of new. I would not go lower than 50% of new cuz I'd buy it for that just to have it as a spare.
Would you be selling the brackets too?
Would you be selling the brackets too?