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4 minute(s) of a 128 minute read
10-9-2011
Honestly, I have no clue. It's a PT88 that was manufactured in 2001. I bought it from a buddy that had it on his Buick T-Type. It is not a PT88-47.
Took her out last night for a couple of test drives which were both failures but the next one should be a good one. First time the driveshaft was rubbing on a loop strap for my fuel feed. Caught it quick. Amazing how much the new motor mounts moved ****. Rerouted it and went for another ride. No noises so started to lean on her. POW! Charge pipe blew off the throttle body and hit the radiator clamp and knocked the throttle linkage off. Got that all worked out and should be bringing her home tonight if the weather breaks
10-10-2011
Never did put the bigger exhaust housing on it. Got to talking with some people and the gains weren't worth the trouble unless I intended to do the front cover or go bigger on the compressor wheel as well. By the time that I modify everything but the cartridge and the turbine/shaft, I'd have close to as much money tied up as if I bought the bigger turbo outright and a pile of parts that I can't sell for much. Instead, I decided to save up for the correct turbo and then sell the one that I have outright. Since I bought it used for a great price, I can't really lose on it. At that time I will move the radiator. I still intend to move the intercooler forward and up more which should allow for the air dam to work properly and pickup some air from under the bumper cover.
This actually works out better from a data stand point. Since the last time I was at the track, I've switched to the Holley Dominator ECU and I've changed out the TH350 (which was launch limited to 3500 RPM due to a transbrake issue) to a Powerglide. I'm hopping to drop some ET, mostly from the trans, from those mods and I wouldn't have been able to see what those changes were good for.
10-19-2011
Ok, just to clarify a little on the ECU and harnesses. These ECU's are not designed to work with ANY of the stock harnesses. In other words, no wiring that is in your car now plugs directly into the Holley ECU. So, in order to get the gauges working on the 98 dash, which has real gauges with individual wires as opposed to the 99-02, which gets all it's gauge data from the PCM, you would have to share sensors. That means that you'll have to splice in to the Holley harness and grab those signals going back to the gauges or double up on the sensors and go straight to them from the gauges.
The 98 cars use a different water and oil sender than the 99-02 cars. The Holley doesn't work with either of the stock oil senders so you will have to replace that with one of theirs or an Autometer type transducer either way. This requires and adapter to screw in which can be bought from Speed Inc and various other places. The 99 (2 wire) water temp sensor does plug into the Holley harness but the 98 (3 wire) doesn't. The 3rd wire, as I have it understood, is for the gauge so you should be able to switch pigtails on the harness and still have the extra wire run back to the gauge. Let me add the disclaimer here that none of our crew is running ANY stock gauges so this is all theory and I don't even do the wiring on any of the cars, so this is the extent of my knowledge on the subject. My roll in our crew is to come up with fast combos (mechanically), tune the cars once they are built, research issues and write the **** up on line. LS2Formula does all our wiring and supplies the facilities and tools to do the labor. BonnarLS2 procures the parts and we all help each other out with throwing the cars together.
The Holley main engine harnesses are either LS1, which goes to the stock sensors on a 99-02, minus the oil, or LS2 which has the extended cam sensor and has the keyway on the pigtail for the 58X reluctor wheel. The ECU's are the same for either as they are just software settings for the different applications.
Hope this helps to clarify.
Oh, and internal boost control is what we are wiring up now but is not yet available to the masses as I have it understood.