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We will be testing out the Virtual Works intake manifold on our HPF Supra as soon as we get it (it should arrive within a week).

At this point I'm only going off what I've heard and seen from a few separate sources. Some of the fastest Supras right now are running it, and I believe their great numbers have a lot to do with this manifold. I've also spoken with people that have tuned the AEM in these cars and they had to significantly increase fuel to compensate for the increased air-flow through the motor.

I would like to believe (based on this information) this is the best intake manifold on the market and that's why we switched to it for our Supra. I do NOT believe that this manifold will benefit you if you have under 700rwhp. Anything over that number I believe it will help and as you try to make more power it will help you even more as the stock manifold does pose a restriction at those power levels.

We will shortly know if what several people have told me is accurate and I will gladly publish my findings positive or negative. I would like to believe am am hoping that we can make 1000rwhp without NOS with a simple T88H kit, Greddy 4-row, 272 cams, AEM EMS and the VIrtual Works intake manifold. Of course I won't know for sure until a couple more months. If I do, this entire setup will be a simple bolt on package that anyone could buy (complete with a map). Maybe we'll make that our stage 7 kit. :)

Take care,
Chris.
 

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The T88H does indeed have some lag, and even more lag if you combine it with 272 cams. I don't believe it's too laggy in a 6-speed car as long as you don't road race, but would be too laggy in an auto if you're not using nitrous to get out of the hole.

With pump gas, you're not going to realize the full benefit of a huge turbo of any sort. The larger turbos are way more efficient at the higher boost levels. They will provide cooler air at lower boost levels but the rpm you must achieve to get into boost is higher making them boring on pump gas. The T88H tyipcally makes full boost by 5,000rpm.

The Virtual Works intake manifold should definitely be an improvement over the stock manifold from what I've heard. The way they judge whether it works or not is because after they install it, they have to richen up the fuel map roughly 13% to compensate for the extra flow. This is what I've heard from one person, so take it as such.

If it is true, I think a simple T88H kit with this manifold could make 1,000rwhp easy. It would just be such a simple cost effective way to do it. I get my Virtual Works manifold early next week and we can finally start working on our HPF Supra again.

Take care,
Chris.
 

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popoff. There are a lot of things that can make your turbo spool faster. I don't believe the intake is one of them. The intake will help mid-range and top end power but not help low-end.

Here are some things you can do, however.

1) With the AEM, we made the T78 spool quite a bit quicker by advancing timing in the spool area and keeping the fuel mixtures lean going into boost.

2) Many people have boost leaks they don't realize they have. I recommend you make a pressure tester. I simply used a 3" plumbing end cap and tapped and screwed an air fitting in the end of it. Then I take off an intercooler pipe and install this in its place. Then I turn the air-compressor down to about 40psi and plug it in. You will feel and hear air coming out from all of the leaks. Every once in awhile when I do this the engine is in a perfect spot where both intake and exhaust valves are open and this air will go out the exhaust. If this occurs, simply crank your motor slightly and then it will hold the pressure.

3) Make sure your wastegate or BOV isn't leaking. This is common. The wastegate gasket can leak under pressure and it can leak from inside. The BOV can also leak, but you can use #2 to test this.

4) Make sure your wastegate is not opening until it has to. This can also be adjusted in the AEM. You need to play with the wastegate duty map. If you set the threshold too sharp you'll get flutter, but you can definitely help spool if the wastegate isn't bleeding off boost when it doesn't need to.

5) Take your housings off your turbo and make sure you don't have any damage to the either wheel. This will also slow spool.

The T78 in my supra made over 800rwhp and smoked the tires at 4,200rpm in 1st - 4th gears. It had very little lag. That's why we're going larger.

Take care,
Chris.
 

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Klaus,

We look forward to seeing the Veilside on your car. I believe the Veilside is a great manifold as well. We really do need some side-by-side testing of all of the different intakes, and at various power levels. The Veilside is a monster with a 100mm throttle body (bigger than Virtual Works), and it is absolutely gorgeous and comes complete with a fuel rail.

Sean will be more than happy to go to Germany to dial your cars in. He is on a tuning trip somewhere every week and I'm sure he love to visit with you guys.

Take care,
Chris.
 

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Ken,

Nice to hear from you. Your car sure looked impressive and sounded impressive at Vegas. The SPE team did a very nice job on the install on your car.

I definitely look forward to the intake manifold shoot-out. Is there another thread about how this will be done and who the players are because I haven't seen that yet?

Take care,
Chris.
 
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