GTOLarry

The car has Vortech kit and Bassani exhaust for performance mods.
If you want to hear what it sounds like here is a short
video that can be downloaded VIDEO rt click, save as

Andy

Sweet!

Fade2blk500

iTrader: (18)

that thing is gorgeous

Nickn20

cool stuff looks like you are out of fuel up top, or its a tuning issue, were you monitoring fuel pressure at all? from what it looks the car was richened up, but after 5k rpm the AFR is the same on every pull.

GTOLarry

If you are talking about the spike at the end of the A/F ..... they were using a sniffer and it blew out the tailpipe. I will be getting a tune soon. Running Walboro 255 and 42# inj. I will be adding the KB Boost-a-pump I have sitting on my bench before the tune. Having said all of that I am really new to this stuff and am just learning so I really appreciate the input, I have yet to learn what to expect in A/F, should it be below 12?

Got Me SOM

iTrader: (2)

great numbers congrats. must feel good now. add some headers now.

Wolfee

iTrader: (3)

I didn't know they were installing LS1's in Cobalts, that a cool combo JK, Sounds like you will have a stout street car.
Wolfee

Got Me SOM

iTrader: (2)

I saw a gorgeous metallic silver '05 GTO this past weekend, looked soo nice. With my wheels on it, it would be awesome.

GTOLarry

You should have seen the shoehorn we used to get the LS1 into that Cobalt.

GTOLarry

Tune is next. Jeff Creech coming to SoCal or so says Tuning Technologies. I am on the list.

Got Me SOM

iTrader: (2)

throw them on there and pick ya up another 20 hp easy. You should be able to make the same numbers as me when I first put my kit on.

are you a 6 sp?

Caveman

iTrader: (2)

Hopefully he doesn`t get greedy like you and go for 10lbs on the stock pistons.

GTOLarry

Actually I probably will but I will lower compression first so I can go 10-12lbs.
LQ9's from Patriot will get me down to 9.3 or close to it.

gametech

iTrader: (1)

Nice wheels, but that centifugal torque curve sucks. How much boost are you running?

GTOLarry

I think 7-8 if kit specs are correct. I will be putting gauge on eventually. Curve is nature of the beast. Jekyll and Hyde sort of thing. Tuning hopefully will help some down low..... if not still happy just the way it is for a daily driver. It scoots well and is comfortable in traffic.

Got Me SOM

iTrader: (2)

why does it suck it centrifugals make power with rpm.

GTOLarry

Suck is probably not the right word but, other solutions like Maggie make a gob of power down low in the rpm range and make for a much different driving experience when just driving around. The cents really don't do much unless you bury your foot and reach the upper rpms. Maggies can have that same kind of pull down low even under less than full throttle. Mine drives like a stocker during sedate driving, beast when I reach 4+Krpms. I like it.

Got Me SOM

iTrader: (2)

you can very easily change that with a nice converter.

GTOLarry

True, much can be done with a change in convertor but I have a manual tranny. Probably running a smaller pulley would bring boost on sooner. Just need to be able to control max boost to a tolerable level when you rev it out. I suspect that would help a lot if there is not some reason why you could not do it.

Got Me SOM

iTrader: (2)

dont' pulley down leave it as is, but definitely go with headers and a y.

I thought you were an auto, lol.