Dawg’s head gasket chronicles

Dawg wrote: I'm thinking of parking the car with the front up hill and burping the radiator a few times.

Not a good plan. You've got it backwards. 

Just do what John said.

I think I mentioned to you, that it was the part throttle acceleration that I noticed so much, car would just zoom up to speed and rpms climbed so much easier without struggling.  Made the car feel more Zippy and Fun to drive.   If someone has a totally stock engine, they could always swap the rockers to a good set of 1.6 ratio rockers while they have the top end apart.  Would help a fair bit getting the air in and out, however if the manifolds have not been ported, no mode in the world is going to help.  So make sure your customers know, that if they install this on a car with non ported manifolds, don't go crying foul if they don't see massive changes.

          Personally I really like the one on my 88GT, it really woke it up, Colby's Dad, took a ride in my car and commented on how quick it was. 

          Another recommendation if the people don't want to go to all the stuff like adjustable FPR and O2 meter on the dash, they can always just find a set of good 17# injectors and swap in.  The stock ECM can handle them just fine and will give a great boost in fuel in the higher rpm ranges.  

      P.S. the stock 15# injectors that are now 20+ years old, are probably performing like new 12# injectors, just a side note to think about. The stock 15# injectors when new and in perfect condition can only support 200hp, so the worn out ones will do maybe 160hp. (fine for a stock motor, however getting dangerous on a modded motor.)

Dawg, I have a spare Autometer Air Fuel Ratio gauge here if you want to hook it up and run around with it for a few days.  Very simple wire up.  Power / Ground, plus 1 wire that taps into the ECM / O2 sensor feed in the cabin.   Its no wide band, but it gets the job done to see if you are not staying full rich at WOT high rpms.

Dawg wrote: Ideally, there would be a home grown way of simply cleaning/servicing the injectors we already have. What kind of money is involved in buying new ones BTW? As for the air/fuel gauge, I think it would be better to wait till I have a variable regulator to play with.  Where do you get this regulator locally? For now though, can't I get any useful info from my OBD1 reader?  The Dawg Capt Fiero wrote:       P.S. the stock 15# injectors that are now 20+ years old, are probably performing like new 12# injectors, just a side note to think about. The stock 15# injectors when new and in perfect condition can only support 200hp, so the worn out ones will do maybe 160hp. (fine for a stock motor, however getting dangerous on a modded motor.) Dawg, I have a spare Autometer Air Fuel Ratio gauge here if you want to hook it up and run around with it for a few days.  Very simple wire up.  Power / Ground, plus 1 wire that taps into the ECM / O2 sensor feed in the cabin.   Its no wide band, but it gets the job done to see if you are not staying full rich at WOT high rpms.

If you try to buy "NEW" GM Injectors, its about $2400 bucks.  Yes Twenty Four Hundred, however,

You can get replacement injectors from Ebay for less than a hundred bucks for a set of 8 from a Ford Mustang. Yes they are a direct bolt in.  Brian runs 19# Mustang Injectors on his 3.2 with a custom chip and adjustable regulator.    As for the regulator, Mopac should have them in stock as they are used on I believe LS1 Camaro's. 

CFoss wrote: Also, do you run a CAT? It could have self destructed (blocked).

Good point. That's what happened to my GT as reported Here.

Patrick wrote: I also can't emphasize how gutless the GT is once the revs go up. It starts fine, runs smooth, and responds okay off the line, but there's no power if I rev it over, say 3000 RPM. When I kick it down into second gear on the freeway while doing 50-60 mph, all that happens basically is more intake noise.

Damien, while standing at the back of the car, rev the crap out of the engine (literally) and look for a fine white power to come shooting out of the tail pipes.