Total D's 18G build......Finally!!!!!!
11-14-2012, 07:31 AM
#161
Well, when sasha extrapolated the data on the climb in HP from my dynos it was on track to be at 700hp or slightly above with just 20psi. I rev to 8000 and the clutch let go just after 6000 rpms so the power and tq dove right after that. So I had 2k more to pull power out. On the street with a new clutch it keeps pulling hard to 8k so I know i'm still making power past the 6200. I think with 16psi more it wouldn't be any trouble to break 800hp. I use an exhaust cutout right after the turbo for free flow as well as e85.
How were you a supra guy for 3 years and not know about QSV?! Google it and look at the countless dynos on the supra forums with them. Depending the power most spool near 1000 rpms sooner and the power is 50-100tq higher per rpm until peak. It was insane the difference.
How were you a supra guy for 3 years and not know about QSV?! Google it and look at the countless dynos on the supra forums with them. Depending the power most spool near 1000 rpms sooner and the power is 50-100tq higher per rpm until peak. It was insane the difference.
I know about the QSV, sold quite a bit when I worked at MVP. The biggest reason for them was so people that had open manifolds could use a twin scroll/ divided exhaust housing that's it. So instead of spending another 1600-2300 for a new manifold, they made this for the people that didn't want to put the money down for a genuine twin scroll/ divided setup. Luckily it works, I just haven't seen enough data from back to back setups to convince me.
If it is working for you, then that's great. To be honest, on our setups I could see it working with the way most of our piping on our kits are done. I think Sasha was working on a divided/twin scroll setup at one point wasn't he? If you could get the same turbo in a open design and exhaust housing that performs well with that turbo and put it against your setup with the qsv, then that would be a better way of seeing the data most people would want to see. I'm not discrediting anything you, sasha or Sp has said about the QSV. I believe it works, just would like to see it tested correctly against other setups.
11-14-2012, 08:09 AM
#162
I know about the QSV, sold quite a bit when I worked at MVP. The biggest reason for them was so people that had open manifolds could use a twin scroll/ divided exhaust housing that's it. So instead of spending another 1600-2300 for a new manifold, they made this for the people that didn't want to put the money down for a genuine twin scroll/ divided setup. Luckily it works, I just haven't seen enough data from back to back setups to convince me.
If it is working for you, then that's great. To be honest, on our setups I could see it working with the way most of our piping on our kits are done. I think Sasha was working on a divided/twin scroll setup at one point wasn't he? If you could get the same turbo in a open design and exhaust housing that performs well with that turbo and put it against your setup with the qsv, then that would be a better way of seeing the data most people would want to see. I'm not discrediting anything you, sasha or Sp has said about the QSV. I believe it works, just would like to see it tested correctly against other setups.
If it is working for you, then that's great. To be honest, on our setups I could see it working with the way most of our piping on our kits are done. I think Sasha was working on a divided/twin scroll setup at one point wasn't he? If you could get the same turbo in a open design and exhaust housing that performs well with that turbo and put it against your setup with the qsv, then that would be a better way of seeing the data most people would want to see. I'm not discrediting anything you, sasha or Sp has said about the QSV. I believe it works, just would like to see it tested correctly against other setups.
11-14-2012, 04:54 PM
#164
Id look at a pt88 or I bet even a 7675 would do you for 1000whp+. Then spray any more you want to make. Those are both t4's.
If we want to use SP's records, a 7175 .96 a/r will make 1102whp. I believe their numbers are a bit inflated, and sometimes I question the qsv a bit (simply from comparisons to other dynos purely on numbers). Either way the turbos here made the following numbers on a 3.4 stroker + cammed 2j (i think high comp too).
7175 - 1102/959
6766 - 940/883
6266 - 821/821
I call it fair to call those numbers crank.
If we want to use SP's records, a 7175 .96 a/r will make 1102whp. I believe their numbers are a bit inflated, and sometimes I question the qsv a bit (simply from comparisons to other dynos purely on numbers). Either way the turbos here made the following numbers on a 3.4 stroker + cammed 2j (i think high comp too).
7175 - 1102/959
6766 - 940/883
6266 - 821/821
I call it fair to call those numbers crank.
11-14-2012, 05:04 PM
#165
Id look at a pt88 or I bet even a 7675 would do you for 1000whp+. Then spray any more you want to make. Those are both t4's.
If we want to use SP's records, a 7175 .96 a/r will make 1102whp. I believe their numbers are a bit inflated, and sometimes I question the qsv a bit (simply from comparisons to other dynos purely on numbers). Either way the turbos here made the following numbers on a 3.4 stroker + cammed 2j (i think high comp too).
7175 - 1102/959
6766 - 940/883
6266 - 821/821
I call it fair to call those numbers crank.
If we want to use SP's records, a 7175 .96 a/r will make 1102whp. I believe their numbers are a bit inflated, and sometimes I question the qsv a bit (simply from comparisons to other dynos purely on numbers). Either way the turbos here made the following numbers on a 3.4 stroker + cammed 2j (i think high comp too).
7175 - 1102/959
6766 - 940/883
6266 - 821/821
I call it fair to call those numbers crank.
Do you happen to have any dyno sheets of the 7175? If so can you please PM them to me or a link.
Thanks
11-14-2012, 05:06 PM
#166
My only issue with those numbers is this. (I could be wrong about this) Those numbers were made going ALL out. Race gas and ***** to the wall tune. I don't like the fact of pushing a turbo to the absolute max. I would rather oversize just a little bit to not be using all the turbo is worth.
Do you happen to have any dyno sheets of the 7175? If so can you please PM them to me or a link.
Thanks
Do you happen to have any dyno sheets of the 7175? If so can you please PM them to me or a link.
Thanks
I chose my 7175 in my goals for 1000ish crank on the high boost race tune. Not 1100whp. I bet a 67 would get me at least to that, but it would be wringing its neck a bit.
Pm coming in a minute.
11-14-2012, 05:25 PM
#167
I am the same way, running max boost definitely wont be good for these turbos.
I chose my 7175 in my goals for 1000ish crank on the high boost race tune. Not 1100whp. I bet a 67 would get me at least to that, but it would be wringing its neck a bit.
Pm coming in a minute.
I chose my 7175 in my goals for 1000ish crank on the high boost race tune. Not 1100whp. I bet a 67 would get me at least to that, but it would be wringing its neck a bit.
Pm coming in a minute.
Thanks
Mike
11-15-2012, 01:00 PM
#168
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Total D, the dynos I have seen of cars with the QS valve did pulls with the QSV open and with it functioning.
There is no argument of it being better than any other setup I'm talking purely from a large single without it verses that same setup with the qsv running. Most setups I have seen that do utilize a fully divided twin scroll design have about 5-10% increase in power (sasha did the math on it) over a non divied twin scroll without a qsv.
If I was using a large single I would only do it with a qsv so I don't have to wait past 6k rpms to get any significant boost.
There is no argument of it being better than any other setup I'm talking purely from a large single without it verses that same setup with the qsv running. Most setups I have seen that do utilize a fully divided twin scroll design have about 5-10% increase in power (sasha did the math on it) over a non divied twin scroll without a qsv.
If I was using a large single I would only do it with a qsv so I don't have to wait past 6k rpms to get any significant boost.
11-17-2012, 07:39 AM
#169
QSV
http://www.supraforums.com/forum/sho...l-Valve-Review
I copied the important info, but this is the link anyways. Info on the Quick Spool Valve for some since it is being discussed and some can't access Supra Forums.
I copied the important info, but this is the link anyways. Info on the Quick Spool Valve for some since it is being discussed and some can't access Supra Forums.
I purchased one of your QSVs for use on my 2J SC300 build, and we have just got around to finishing the tune today. I am extremely pleased to say that I love it. Setup consists of a forged 3L, built head with 264 cams, turbonetics cast iron manifold, qsc, borg warner S300sx66, our 4in downpipe and 4inch AL exh. we tested it against a friends MK4 with an older PT67 and a 75shot and my setup actually out spooled his car by 110hp from the point his nitrous came on till peak power.
Reid,
I've been very interested in making a faster responding car. My current set up is an old school PT67 1.00AR, on a treadstone cast manifold 19 psi, 93 oct pump gas, running Vipec standalone, 3" DP/MP, 100% stock long block. My logs show that I make full boost around 4200 in 4th gear (on the road, not dyno), would the QSV move it 500rpm to the left?
Thanks
Jeremy
I've been very interested in making a faster responding car. My current set up is an old school PT67 1.00AR, on a treadstone cast manifold 19 psi, 93 oct pump gas, running Vipec standalone, 3" DP/MP, 100% stock long block. My logs show that I make full boost around 4200 in 4th gear (on the road, not dyno), would the QSV move it 500rpm to the left?
Thanks
Jeremy
You got it Jeremy. According to every one of the comparisons I've done in-house, a 450-650rpm increase is always there and looks to be.......
11-22-2012, 01:00 PM
#170
SP announced a new product. QSV can now be bought in Titanium and is only $50 more. Just thought I would let those know who are interested.
Link:
http://www.supraforums.com/forum/sho...om-SP-for-2013
"SP Quick Spool Valve HDTi
That's right, TITANIUM!! We have explored the avenue for utilizing a more exotic metal in the QSV for a long time. Only just recently were we able to acquire the necessary material without having to raise the cost to produce significantly.
Regular Pricing:
QSV Super HD (current version) $549
QSC HD Ti $599"
Link:
http://www.supraforums.com/forum/sho...om-SP-for-2013
"SP Quick Spool Valve HDTi
That's right, TITANIUM!! We have explored the avenue for utilizing a more exotic metal in the QSV for a long time. Only just recently were we able to acquire the necessary material without having to raise the cost to produce significantly.
Regular Pricing:
QSV Super HD (current version) $549
QSC HD Ti $599"
12-03-2012, 04:26 PM
#171
So, I finally decided on the next kit I will be using. Have to take care of a few obligations first, but it'll be happening over Christmas break. Lets just say the record with the kit as far as I know is 1248rwhp. This was done on smaller turbos than I will be using with the kit. 
Should be a fun way to bring in the new year. Oh and and new headgasket change lol.
Should be a fun way to bring in the new year. Oh and and new headgasket change lol.
12-03-2012, 05:44 PM
#172
So, I finally decided on the next kit I will be using. Have to take care of a few obligations first, but it'll be happening over Christmas break. Lets just say the record with the kit as far as I know is 1248rwhp. This was done on smaller turbos than I will be using with the kit. Should be a fun way to bring in the new year. Oh and and new headgasket change lol.
Should be a fun way to bring in the new year. Oh and and new headgasket change lol.
Does it happen to be SPs old kit?
12-04-2012, 12:02 PM
#178
carillo with carr bolts is the only option for that power. if you really plan on going after 1200whp it will have to be sleeved as well. both my engine cores were worthless because the cylinder walls were tapered well past the 0.04 overbore, and that was well under 1200whp.
12-04-2012, 01:39 PM
#179
Yea good info to know. I have always used carrillo in the 2JZ platform, SP used the Pauter with their Z so was just looking at options. As for the sleeves, I'm not looking forward to that lol. It has to be done for the power I want though.