I just tried to look for a usable pump at McMaster-Carr Supply Co. and found only a suitable pump it was only rated for 30 mins continuous. The sales people are nice but they want to custom build me a pump and require a technical spec. or a part # of a pump they already make.

since there will always be a light flow of oil I think the holley blue will be well lubricated. I think oil lubricates better than fuel anyhow.

 

The turbo oil flow is very low since it usually goes through an orifice before it hits the bearing cavity. Does anyone know the actual flow (say at 40 psi and 230 degrees?) or a ballpark number? You could probably run a fuel pump, and have it either cycle on and off as the turbo oil outlet reservoir fills out, or drop voltage to cut flow. I'd be looking for either a diaphragm pump, or a gear type pump.

 

I guess a holley red (cheaper) could be used too.

 

one of these super cheap electric carb pressure, "clicker" style, pumps available at every auto parts store could get the job done Im betting.

 

I just checked out their g-tech results for the ls1. I'd have to say that they are pretty close to correct for the stock car. I have a 99 Z28, a4, totally stock except 255-55-16 dulops. At th local track ( 1/8 mi) I average about 2.2 60ft, 8.8et and 81-82 mph. This is basically at sea level, so I'm assuming that the altitude is making the diff in why this SS isn't faster than my car stock. Also, not that I'm seriously considering it,(because I bought a 3rd gen to race) but 3,300 for 500 or so rwhp sounds pretty good to me for this car. I have seen stock ATI intercooled ls1's in the houston area only putting out 425-450 rwhp. This cost, the last time I checked, about 5,000. Aslo, H/C pakages for these cars aren't cheap. You can get this HP N/A, but it's gonna cost you, alot! Granted, I'm not done reading thier site yet.
Some have said that this is too much $$. and they could easily make the sytem for 1,500 or so. I say do it, and you WILL sell them. Not flaming anyone, just some of us don't have the skills, or tools to do this type of project. To those of you that do, Man, I so wish I lived close to you!!!
Anyway, It's nice to see someone trying something different, as that is what got this whole hot rod love affair going way back in the dark ages!
Kevin D

 

Okay, just looked at instal pic's for the lt1. One question: WTF! Where's the muffler??!!!

 

There isn't a muffler, the turbo quiets it down alot. Look for the video of the car that has it installed, sounds abit quieter than a loud mouth.

 

and they used a resonator tip it appears so it would still have some character.

I wonder how a "turbo to engine inlet" ( the driverside pipe ) built by a exhaust shop would work if I built one using this JYD turbo I have posted about before?

 

huh, downloaded the video... sounds just like my '97 WS6 does when I take the muffler and tailpipes off (I've got it flanged right at the inlet so I could see at the track if the muffler is a restriction), IE, like sounds like ***...

FWIW, how many stop signs did he blow through in that video?

 

Oh, as a second note... 305's sound great with no muffler on them, 350's do not, you get all that burbling and other just unhealthy sounding noises...

 

Found a vid with this system on a 4th gen.

see if this link works http://www.discountchips.net/2kss/vi...bolt1final.mpg

 

yea, that's the one I was talking about

 

I saw the same thing, the dyno results remind me of an LS1 with a few bolt on from our dyno. For example look at this one is a real dyno and the other is the G-tech pro chart,



real dyno of LS1 in thirdgen with LS6 intake and maybe some exhaust mods?



G-tech thingy of turboed LS1!?!?





I still must admit this idea is growing on me, as crapy as the video was done, the turbo is definitely spooling, I expected a bit more tirespin though...

 

I hate to admit it, but it's growing on me too. I was thinking of trying it on my suburban just for giggles. My thirdgen already has way too much compression for boost. On my 'burb though I have room to put the turbo right after the header collector, so maybe i'd do a twin turbo setup.

 

the 412 in my B4C was built for use as a power adder motor...

 

I LOVE the idea and i want to give it a try on my car. what size turbo would i have to get?i have someone around here that can bend all the pipes for me. so i need to know what size turbo, where to get the oil pump and ... thats its. i can fill in the rest.

 

i have a turbo from a 6.5 gmc diesel. would that work?

 

I dont know if it will work but thats what Im thinking of using. Mine says GM5 on it what is yours? remember you will have to run an external wasegate like on this kit, especially because these GM turbos have a crappy/floppy "vacuum actuated" oddball style wastegate. but thats no biggie. go to ebay and look up "tial wastegate" <----written just like that

 

im doing it in the spring time on my 305 until i can afford to build a 383 or something.going to do a somewhat thicker head gasket to lower the C/R a bit,convert it to carb from TBI and do a blow through setup,probably headers,and possibly a cam.just want to see what i can get out of the 305 for now until i can afford to build a serious motor.im hoping for at the very least 300rwhp on about 7-8 pounds of boost,which i think is very attainable as long as its tuned right and i lower the C/R.
also im wondering if theres any room anywhere to mount a small I/C under the car or even under the hood,such as a Starion unit or something around that size.probably not,but its worth a look.either that or maybe get fins installed on the outside of the charge pipe?i dont know if thats possible,but its another idea

 

couple of questions, first what do you have to do to the fuel system, biggers injector, extra injector, prom burn a different VE table, what?

Also if someone here designed a kit for 1500.00 I would be more than happy to pay 2500.00 for your time and effort.

what other mods would you have to do to a stock/semi L98
what would be the max boost PSI with the stock compression.

Thanks for the Vid, man Im glad I have a T2 line

 

cool video... sounds good until he lets off the gas.


what was up with the lack of tire spin? i didnt see slicks... and the turbo obviouselly spools pretty quick... and he didnt baby it. i mean even my near-stock 350 would spin the tires from a roll if i stomped it like that. anyone else find that odd? and top that off with didnt most Lt-1s come with some decent gears from the factory? i doubt that car had crappy gearing.

honestly the thing really didnt appear to move along that quick. but it sounded like it did.

 

i thought the same exact thing kingtalon.even with 2.73's and a peg leg it shoulda been spining atleast one tire

 

maybe they put the ***** fake turbo thing on the car

 

The reason he didn't spin the tires was because of the turbo lag. Did you not think it would take time to compress all that exhaust between the motor and turbo then compress all that air between the turbo and the intake? How long does it take your air compressor to pump up in the morning? Same principle here too. Big volume of air to get moving and stoped every time you lift.

I'm surprised no one realized how low the nubers were in the g-tech runs. Also the dyno graphs are real linear like a NA combo. A turbo dyno graph should start out with absoluty no power and all of a suden jump strait up and then taper off much like a N2o car would. This thing looks like it just barely gets into boost in each of the gears.

You can see this in the video as well. He even pegs it from a stop and it just bogs and does't even run well till the top of each gear. Also do you notice how long it takes for the blow off valve to bleed off the pressure after he lets off? If that video still has you interested then i'll sell you a kit that blow air though an orfice and gives you that same cool "woosh" sound. Except you'll be able to spin your tires still.

 

that why I think that with my 412 cid motor and the use of this GMC turbo I have (with its smaller exhaust housing and bigger impeller) I might see 6 to 9 lbs boost with alot less lag. Besides my 412 isnt lacking in the bottom end anyhow

 

it will be lacking once you put a plug in the exhaust system. It will take time to get all that air moving with even with your 412, If your running any kind of a cam it's going to be making it worse. You can still turn big numbers with this setup, mostly on a dyno though becuase of the way the dyno loads the car up for a long period of time before the run starts. This setup will make boost but it won't make usable boost. You can even see how the car pulls much stronger in the video in the upper gears at speed when the turbo has time to basically get into equilibreium.

If you really wanted to do a cheap setup like this I would put it under the car right where the y-pipe converges. This would cut down the volume of air that has to be compressed by about 300%. Actually with it in this position it is about the same as having it in the engine compartment. You'll have half the hassle of plumbing and really cut down on lag. Sure it'll get wet but so will it at the back of the car, probably more so. At least here you can run the inlet tubing up into the engine compartment away from the water. You won't need a oil pump either. Remeber the supplied oil pressure will just push out the old oil, it's not like it just sits in the line with 60 psi on the other end.

 

interesting idea considering there is that unused cat converter area right there