Project: Mavro Gato - 99 Turbo'd 3L

[gamiller]

Originally Posted by FastCougar

I figured as much, but thought that it would at least build some boost

i revved mine at stoplights today on the way into work. the vacuum would go from 20 to 0 but the gauge did not read boost (8 psi) unless the car was moving and the pedal was at least halfway to the floor.

[FastCougar]

Thanks for confirming this Gary ... I will try to get around to wiring up the gauge this week in the evenings and then finish off the exhaust next Sunday ... then it's time to play

[warmonger]

Originally Posted by FastCougar

Oddly enough, I was home sick today

The car is running ... there are only two things to complete until I can road test it:

1) Create the cat-back exhaust system.
2) Rewire the Air/Fuel gauge & wire up the boost controller/guage.

I started the car and let it idle for 10 minutes while I triple checked everything to make sure I had no leaks and that the turbo was draining properly.

Now, I have a mechanical boost/vac. gauge that I hooked up and it only read vacuum ... even when reving to 5,000 RPMs

So, I checked the vacuum line routing and it's exactly how the boost controller diagram specifies. At a bare minimum, I should be making 4psi. So, should the car build boost when reving in neutral? I would think so, but this is my first boosted car, so I have no experience.

not necessarily...not on as big of a turbo you have.
I couldn't unless I did repeated throttle mashing and after I did it twice it would build boost on the third try or so....but not much.

[Topik]

wait til its tuned

[FastCougar]

Well, I started the car and let it idle on the last NA tune. Tom has since sent me a tune that pulls timing a bit and disables anything related to the EGR system since mine is gone. Tom said to keep pushing things in 2psi incriments until one of two things happen:

1) I reach my goal
2) I start to hear/feel pinging

If #2 happens before #1 is achieved, more timing will be pulled.

[Instigator]

I cant wait to see how you like it. Youll have the biggest grin while you try to fight the tq steer @ 15 lbs. Trust me I know

[FastCougar]

Well, I tore apart the dash last night and mounted the new gauge. I just need to run the wiring for this and the wideband gauge and the gauges are done. I will try to finish this tonight. I will be working on the car all day Saturday. If I finish the gauges tonight, all I will have to finish now is the exhaust system. I hope to have some boosted runs under by belt by Saturday night

[FastCougar]

Assuming I can hit this mark on the dyno without pinging, who cares to guess what the hp/tq will be at 16psi?

[contrapaul]

Originally Posted by FastCougar

Assuming I can hit this mark on the dyno without pinging, who cares to guess what the hp/tq will be at 16psi?

I care to guess

524whp and 498 wtq

[drummerboy827]

w/ the gauge reading boost during free reving..you wont see bost unless you punch the throttle sharply, and it should spike a bit then fall back down. Slowly building rpms to 5k wont do anything. I imagine your turbo is big, so chances are you wont see boost until driving.