ngrimm

You might want to take a look here http://www.mortec.com/carbtip1.htm to get some background on carb sizing and pay special attention to power valve selection and how single/dual plane intake manifolds affect carb sizing. Norm

Fuel filter clogged? Perhaps unhook the hose and see if gas sprays into a can when the pump is running. Also have you checked for spark at the coil and then at the plugs? Good luck. Norm

Here is a reply from the one of the first Turboford guys that I know of to run a Holset on a 2.3. " Port the heck out of the wastegate hole and short side radius just like you would porting a head. Now it will pretty much hold any bost level I set it at and only creep 1 or so pounds of boost towards the upper rpm range." Also he cut into the flange where the flappper hits to allow it open farther. If you cut thru you can weld a cap of some sort over it. Hope that makes sense. Norm

I'm surprised you're have that problem. On my 2.3 Ford all that's been done to the Hy-35 is enlarging the hole and mine holds steady. One of our local 2.3 guys runs an HX-35 and his holds steady too. I have heard tho of some of the Turboford.org guys cutting a hole in the flange to allow the flapper arm to move even more. Could thre be a hole in the hose to the wastegate or even the actuator diaphragm? BTW if you should decide to go with an external gate, the same guy makes some internal wastgate blockoff flanges that are very nice. http://cgi.ebay.com/ebaymotors/Holset-HX-35W-HY-35W-turbo-waste-gate-blockoff-flange_W0QQcmdZViewItemQQcategoryZ33634QQitemZ8038941622QQrdZ1QQsspagenameZWDVW

I use a lighter to shrink the tubing. But you have to be careful. I actually used a butane soldering iron to assemble my MS but I went thru a lot of butane.

I have been using hobbs switches with good results. I built something of a progressive system that utizes a Shureflo pump and an adjustable fuel pressure regulator to raise the water/alky pressure as the boost rises. I have been able to run 20-30 percent more boost which as they say is a good thing.

Have you considered water/alky injection? I believe you could use MS to trigger it. That's quite an impressive set up you have, I really enjoyed your "track" videos too. Norm

I would try a smaller gap on the plugs. Don't know for sure about these ignitions but it is a well documented on the turbo Fords that once you start pushing up the boost the stock electronics don't have the umph to fire the plugs at the factory gap. Stock Ford boost is 15 but I run 28 with water/alky. Norm

How about spark blowout due to overly wide plug gap? It's happened to me many times in my Mustang. Norm

I had the same problem with mine. It was the exhaust manifold leaking due to the end studs being broken and the manifold was warped. I hope that's not it because it is pretty time consuming. The bolts are nearly impossible to get out since you can't even see them. It would almost be easier to pull the engine. Good luck, The Grimm Reaper.

I have a friend in Portland that is selling his V10 Dodge Ram. I've noticed the early ones go for only 3 or 4 thousand. Any one know what it would take to make Viper comparable HP with one of those? Norm

Seems to me there would be a need to tune the a/f when increasing exhaust size to compensate for additional flow thru the engine. Perhaps some of the torque could be recovered that way?

Don't blame you for being cautious with the boost. I have a LM1 if you should want to check a/f when you raise the boost. Whichever Z I keep I think I'll go with water/alky since I've had really good results on my Mustang. I think it's pretty good insurance and in some ways easier to install than an IC in some cars. Just let me know if you want to hook up the wideband. Plus I may need to ask you some questions when I get stumped on the MS. Norm

Never heard about your accident, that's too bad. I had heard one reason the turbo L28 is a little sluggish off boost is that the stock ecu retards the timing to help spoolup. Have you noticed any driveability improvements with the MS over stock? Also any plans for raising the boost? Norm

Thanks for posting the solutions so far. Not everyone does that and it helps the rest of us when we have problems. I'm here in Medford trying to finish the install on my 300zxt. Would like to see your car some time. Norm