ZZ3Astro

There is no better feeling or sound than that first start with the turbo mounted up! Looking awesome!

1991sleeper

iTrader: (-3)

Ur almost out of summer time man ! Get that thing to the track !!! I'm actually doing a 305 build right now .. All I need is my machine wrk and heads purchase TFS super23 175's lolling for around 350hp NA

Street Lethal

iTrader: (16)

Thanks Steve! It's taking longer than I anticipated, but as long as it gets done it'll be worth it in the end. Just a little more tweaking on the downpipe and she should be ready for some tuning sessions...

I'd honestly rather run when its cooler out anyway, as it sucks sitting in the lanes in 80 degree weather wearing a fire jacket. At least in the fall it'll be much cooler, and air temps will be right where I need them to be because I am not installing the alky kit right away. I just called out a buddy's supercharged '99 LS1 Corvette w/auto and stall reported to have run low elevens, or at the very least be good for low elevens. We shall see either way who wins and who loses, but it's going to be pretty cool, and with the way my year has been treating me so far, I really need some fun runs to get in, tis been one thing after the other...

- Rob

fasteddi

iTrader: (2)

Nice vid rob. Sounds amazing. That makes me want to ditch the V6 for the V8.... Cant wait to see what it can do in the fall when its nice and cool out.

Capt. P

iTrader: (1)

Sounds great !!

Street Lethal

iTrader: (16)

Thanks Mark, got two very tough races lined up, its gonna be a good time...

Thanks Captain...

Street Lethal

iTrader: (16)

For you LS1 vs SBC guys, first call out has been made. Will be racing a '99 LS1 Corvette with stalled automatic running a Paxton-Novi Supercharger both installed and tuned by ESC (East Coast Superchargers), running 10-psi of boost. Not sure what I will be running just yet as I need to dial in the tune again (probably 15-psi), but it should be fun. Corvette owner also runs a nine second Buick T-Type, pretty quick car...

kmcn47

when and where? i wanna be there

Street Lethal

iTrader: (16)

Murph will be coming up to Englishtown Raceway Park to run me on a Wednesday night, we're going there tomorrow night for a few shake down runs but I am far from tuned though and still need to dial it all in. His was dyno tuned by ESC and is ready to go. Will throw up some videos tomorrow night of his shake down runs too, but we'll both be holding back until we run of course. I have an "idea" of what he traps, but then again he could also be talking smack with the mph he quoted cuz there might be money on the line. Will keep this thread posted way in advance before it goes down...

1991sleeper

iTrader: (-3)

Awesome ..... Can't wait !

1991sleeper

iTrader: (-3)

Does this thing have the stock rotating assembly ?

kmcn47

thats a long way for me, but i will do my best to be there. with cameras

GTAman

iTrader: (2)

This thread is awesome! once i get my GTA dialed in NA wise, i want to go turbo. i got a MAF car though, so we'll see how that goes. that EBL is pretty sweet too!

Street Lethal

iTrader: (16)

We usually go with about 10 to 15 guys when we run, and everyone brings their own camera, so we'll have plenty of coverage. Tonight looks like rain though, gotta give the track a call by three this afternoon for them to confirm if they are opening or not. Couldn't resist the offer to take a ride in Murph's Supercharged Corvette that day, as I wanted to get a feel for how much boost I will need to beat him. His car is very very fast, bottom to mid range is very brutal and harsh, then it just pulls up top. Gonna be a very tough race. His damn blow off valve was already dumping at 2000-RPM...

Street Lethal

iTrader: (16)

Just to add to this thread a correction, what happened was when the distributor was removed to install the braided oil feed line, I put it back in by eye in which I thought was on the money, but it wasn't. Let that be a lesson kiddies, never set your timing by eye, or by ear, I don't care how good someone says they are with engine sound, do it right the first time with a timing light. Damn timing was reading 4 degrees retarded (EST disconnected), when it should have been 12 degrees advanced. It's all good now...

1991sleeper

iTrader: (-3)

Ha been there done that ... Runs alot better now huh !
Good thing it wasn't advanced that much ... Tha motor prolly woulda been a goner with and moderate acceleration ...

GenX'Motorsport

So what happened?????
Any #'s yet? 1/4? Dyno?
Im very Excite!

Street Lethal

iTrader: (16)

Went with a 4" Downpipe after all, modded the heater box to make it fit...

Good stuff's a coming...

TwinTurboROC

so whats the hold up?

34blazer

And den?!?!

Street Lethal

iTrader: (16)

We be BBQ'ing today dudes, not playing with the GTA today...

What am I like the only guy out of the three of us doing a build lmao? Umm Dave, update that turbo 305 thread of yours already lol. Umm Joe, "start" a damn turbo thread already...

1991sleeper

iTrader: (-3)

Hey street u ever thought of going to the Trick flow 305 heads ? I think if u didn't reach your goals this time that would prolly be the quickest easiest way to do so .. No ? ... I know 1200$ is alot but hell u already got alot of $ in the car so what's it matter lol

Street Lethal

iTrader: (16)

If I was staying naturally aspirated then I would definitely invest in better cylinder heads, as the stock iron heads just aren't that desirable. With boost though, these heads should definitely get me in the nines, even unported they would get there (albeit with more boost pressure). I've honestly seen tiny little 1.74" intake valve heads on V6 engines running in the nines at the same vehicle weight as me. If money was no object with the GTA though, I'd definitely go w/Arao 32 valve heads...

kmcn47

no, someone like you would spend that money on somehow making your ofn 32 valve heads out of some old marine engine racing heads or something

34blazer

I wish the money was or I would!
Lol

Street Lethal

iTrader: (16)

I wanted a 48mm wastegate, but settled for a 44mm unit offered from the same company that makes the turbo charger, it is positioned behind the turbo with the top of the unit facing the firewall, and the exhaust dump heading straight up to the downpipe, this way I will have ease of access when swapping wastegate springs. A compact setup as well as easy access was the goal from the very beginning...

project89

iTrader: (1)

just be aware that the valve on thos ecompact units does not open as far as on the full sized unit, just something to keep in mind if u have trouble controlling boost with it

Street Lethal

iTrader: (16)

These RS series wastegates work fine, the only thing needed is to deburr a few areas as well as use antiseize, but that goes for all wastegates. Same diaphragm material inside this RS series as the Turbonetics wastegates, we already compared them. It will work well, but even if it doesn't, that is why I chose that flange style, easy replacement...

project89

iTrader: (1)

get that thing together so some of these idiots can see u dont need some huge ci engine or high dollar engine to go fast

i really cant wait to get mine to the track now

Street Lethal

iTrader: (16)

Which idiots are you referring to lol, are they members on this board? Is someone talking a whole lot of smack elsewhere, and why is it bothering you? This build is getting there more and more, and I already know what its going to run, its just a matter of if it holds. However, I am not going to rush though just so a bunch of idiots can see anything. If these idiots are local they can come to the track with their wallets, if not, then they can continue to talk smack while flexing those internet muscles...

1991sleeper

iTrader: (-3)

I think he is talking about the ppl that say a 3.736" bore can't make decent power lol ... Which u are doing a turbo build and I'm doing a N/A build so we will Definitely see what the possibilities are

Street Lethal

iTrader: (16)

A 3.0 2JZ engine found in the Supra has six 3.39" bores...

A 3.8 VR38DETT found in the GTR has six 3.76" bores...

A 5.0 LB9 found in the GTA has eight 3.736" bores...

... those two extra cylinders makes a tremendous difference with boost, despite the cylinder head difference. The heads only need to flow "good" when it comes to boost, but enough of my rant, the proof will be in what you see not what is parroted and said by others.

1991sleeper

iTrader: (-3)

Corect u are ... My buddy has a 700hp integrated type R with a stock block (4 banger ) WTF !

kmcn47

still wont be nuthin pared to ma big block 3 fiddy itll spin the tires for 40 feet in every gear in my pick em up

TwinTurboROC

I'm just giving you some time. I don't want to take away the attention from you. LOL

TwinTurboROC

The heads are where its at. And im sure we will both crack 1000 hp on the 2nd comming of the 305s. Evil evil plans are in the works!

Orr89RocZ

iTrader: (20)

Yup. Bore means little without airflow. Put a sbc 23 deg stock head on a 2JZ lol you'll see what i mean.

Boost will help make up for head deficiencies tho, for the most part. Crank it up and make power. Ash on TTF made 1014 with a 355 sbc on stockish 882 castings, but hes on alcohol. Just needed 24 psi

Street Lethal

iTrader: (16)

Nawh, attention is the last thing I want bro, but speaking of which, here's an update lol...

Wastegate is in, have the dump facing downward because the last thing you want is for it to be facing upward while collecting water. Once the downpipe is in it will then connect via a 1 3/4" tube using the same type of flanges for ease of installation. By the way, it's a good thing I checked the spring tension, as their "five" pound spring didn't crack open until fifteen pounds. Luckily my buddy Paul had a five pound spring for me lying around the shop...

1991sleeper

iTrader: (-3)

Lookin good man ... I can't wait to get mine back together ! It's drivin me crazy not having my toy to drive when I want .. Tired of driving the wrk beater

junkcltr

iTrader: (1)

If you just put 5PSI to the port then you tested wrong. The EBP on the valve also helps open the spring. So a port tested 5 PSI spring will open well below 5 PSI.

How did it do against the Corvette?
Why did you have to re-tune so much after putting on the turbo? Usually, tune it NA, then put the turbo on and tune boost.

This original build started in 2009/2010 and hasn't run yet. Can't wait to see the numbers it runs.

Street Lethal

iTrader: (16)

Hmm, you somehow know my exhuast backpressure before we do lol? The spring was compared with a Precision color coded set of springs, and the God Speed tested the same as the 15 pound Precision spring. But I guess you know better than Precision Turbo?

This entire response makes no sense whatsoever, but I will do my best to entertain those who are reading along. Already said when I run the Corvette I will post the video, so asking how I did is irrelevant because it didn't happen yet, and your obviously not reading and are only chiming in as if pretending to be some type of authority, perhaps?. The time it takes for me to tune my engine is just that, my time, and it will get done on, you guessed it, my time. The build from 2009/2010 was another car and engine entirely, an '84 Anniversary Trans Am with an L69, also making it irrelevant with this build. As for can't waiting to see how my car runs, I am glad you took an interest in this project of mine.

kmcn47

speaking of 84s with the l69, jk jk, i wish i had a tpi and turbo setup, i hate carbs

GreggymacZ28

Very cool build! I am excited to see how it turns out. .

nando5

Dude I just finished reading this entire thread and I am officially convinced on keeping my 305.
I was hesitating on keeping it but im sold.
This is awesome! cant wait to see the results.
Awesome job and good luck.
Ill be following.

GenX'Motorsport

OK, So, Whats going on???

Street Lethal

iTrader: (16)

Meh, took a break from the GTA after I picked up a '96 Corvette to have a little fun with. Was told that it was modded, but the first outing over at e-town netted a high 13 second pass, which told me its stock. So far got my hands on a set of ZR1 rims, 17*11 out back and 17*9.5 up front, and slapped on some Mickey Thompson ET Drag Radials 315/35/17 out back (went with 275/40/17 BF Goodrich G-Force up front). The Procharger should make it quite the contender at the track, its just going to be a pita to tune the stock PCM. Hoping RBob will solve that little issue one day soon...

Orr89RocZ

iTrader: (20)

nice those tires kick ****! my 19" mickey radials hooked well on the street, let alone at the track

34blazer

0411 swap?

Street Lethal

iTrader: (16)

Was having too much fun with the Corvette, especially now with the Procharger. Just need to figure out the PCM issue as the 95/96 LT1's are the red headed step child within the realm of DIY tuning. Only option might be to go with an XFI, MS or BS3. Still gotta see. The GTA has been sitting. I was so sure I was going with a 4" downpipe, until a few of my GN brethren showed me that a 3" downpipe will easily trap over 140-mph, which is actually over my goal of 135-mph. Long story short, I ended up going with a 3" downpipe, but will be dumping it before the catalytic converter (btw, now you can see why I chose a shorter wastgate)...

Street Lethal

iTrader: (16)

Can't get over how much room these ZR1 rims allow for. Am thinking of slapping the MT 315's on the GTA after I mod for a mini-tub kit similar to Pablo's setup, then getting my hands on some 335's drag radials for the Corvette. Thinking of just going with a simple LT4 package with the Procharger, and just having some fun with it, with no goal, just to enjoy...

Not familiar with the 0411 swap, please delve a little further into it Joe...