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ESP Twin Turbo Kit

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TURBOGTA1 said:
John at ESP is a great guy to deal with. Wish this set-up was around before I started my Money-pit :D

Why did he take my real GN BRF trans as a core and sell me a broken non TR non BRF broken POS trans and then promise to take care of it and leave me with the repair bill?

How about taking money for a new Power Master only to deliver a used unit many weeks later than promised?

How about an error on EVERY damn order ever shipped?

No offense intended to you TURBOGTA, but if I had the benefit on this message board before spending many thousands of dollars, I sure would have made some other decisions and if John had even made an attempt to keep his word I would not be commenting about his character.

Maybe he has changed, but my personal experience has taught me to not believe him.
 
Good morning,
We did drive over to Atco for the Mustang vs Buick Shoot-out and spoke to a few guys that asked about our ESP Twin Turbo kit. After some traction problems on the first two runs and a fuel regulator hose that blew off (blew an exhaust manifold gasket) we did get a good final run. With a 5 pound launch (foot brake) we had a 60' time 1.57 and an E.T. of 10.84 at 18 pounds of boost. There was no time for another run so was swapped back to street tires and drove back home, about 2 hours. This was our second time to the track with the Twin Turbo set-up and are happy with the 10 second results we've gotten. We expect quicker times in the next few weeks. Feel free to ask any questions.
 
My question is "What's the trick?" It's hard to get enough air flow at 18psi to make that horsepower. Not with a stock block 231 Buick, turning 6000 rpm, anyway. With 18psi boost, and 400 cubic inches, it would be fairly easy. With 231 cubic inches, turning 9,000 rpm, it would be fairly easy, too. Ken Mosher got 650 at 21 psi, and I know others have done done it, too, but not at 18 psi. He was getting 0.55 lbs of fuel per horsepower-hour, which is pretty good BSFC for a turbo Buick. You had to do at least that to get 670 horsepower from only 19 lbs boost. Pressure is pressure, pretty much, and it doesn't know whether it came from two turbos, or one turbo, or a Roots type blower. If the intercooler (intercoolers?) were supercooling the air, that would make it easier to see. Using liquid cooler intercoolers with ice will do it at the track, but that's not going to help on the street. Just curious, there seems to be more going on here than I can see.
 
ESP Products said:
Good morning,

To answer a few questions in one post...
Yes, we will do an A/C version. Right now we are focusing on the current kit and the customers interested. We have had requests for the A/C version and new brackets will need to be designed and fabricated. Next... The ESP Twin Turbo kit is designed for 650 + hp @ 16-17# on the street. We are currently past that point (approaching 700) and it is still a street car; started every day and drive around town. It has near zero lag and all at 18# of boost or less. If you review our write up we are producing 370 hp at the tire at 10#s of boost. Next... The kit will include, but not limited to, 2 headers, 2 turbos, 2 oil feed & return lines (S.B.), 2 TiAL wastegates, 2 downpipes, 2 inlet pipes, 2 air filters, and an ESP Twin Turbo Intercooler. All other brackets and fittings will be included.

Hope this helps.

I would assume that from this post. They got the 700hp number at the crank. Can you clarify whether the 700hp you guys got was at the wheels?
 
I would assume that from this post. They got the 700hp number at the crank. Can you clarify whether the 700hp you guys got was at the wheels?
So far we have about 650 hp at the Crank. We have made changes to the combo, but have not yet Dyno'd them. At Atco, last weekend we ran 10.84, but we have more tuning to do before we make any other claims. We do know the rear tires are seeing at least 501 hp and 570 ft/lbs at 18# of boost (370hp /425 tq @ 10 psi). We will hit the track a couple more times this years for fun and then go back to the Dyno.

My question is "What's the trick?" It's hard ...
No tricks. According to the data logging we are running 18 psi and shifting at 5800 rpm with safe timing and A/F. I'm sure there's more power on tap. We spent time on the ESP Twin Turbo kit and choose our cam, CNC heads, and turbos carefully. Everything is well balanced and designed. Every component of our engine and Twin Turbo kit is available to our customers. No tricks. :)
 
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