well im starting a new build thread since ive changed the setup alot from my original plan

engine

4bolt main 350 .030 over bore
forged speedpro domed pistons 9.2-1 cr with 76 cc head
hand picked factory rods resized shot pened/strees relived w/ arp wavelock bolts
forged factory crank
ported 882 heads
tpi (gasket matched egr bumps removed )

fuel system

65# precision injectors
dual areomotive 340lph intank pumps

electronics

megasquirt 2 v 3.0 fuel and igntion control,w/ antilag, 2 step , traction control, and dual fuel/ignition table switching

hotside

equal length log headers :rofl:
dual 2.5 inch downpipes
twin 38mm wastegates

induction

twin gt35r turbochargers @ 15 psi (i.e twin 61mm turbos)
.8x hotsides
3inch in out bar and plate intercooler 4 inch thick core


driveline

built full manual 700r4 for now
th400 with transbrake down the road
2.73 rear gears
3inch dom chromoly drive shaft

suspension

poor mans 90/10 front struts
morroso front trick drag springs

stock v6 rear springs
lcarbs
offset lower control arms single adjustable
adjustable panhard
ce 3 way adjustable drag shocks

 

why 2.73 rear gears?

 

cause of the short rpm range the tpi is going to give me to work with. not to mention when i swap out my 700r4 for a th400.

this car is replacing my current daily driver, and i do alot of driving. the nearest supermarket to me is about 55 miles away

 

Getting serious with this car ... twin 35r's are gonna make alot of power. Compression seems high for a 76 cc head tho? Why the domed pistons? or is it already together?

 

i was having issues packaging the large frame t6 76mm

the stock compression was a measly 8.2-1, so once i found out i had a 4 bolt block with a forged crank,i threw some upgraded rods at it,and at that point there was no point in leaving the stock cast /w 4 valve relief pistons in it

when i buttoned the motor back up i stared at the log headers i built and decided with a 90* bend on the end of each packaging a set of twins would be so friggen simple (ill post pics in a bit)

the problem i was having was making the merge for the t6 turbo inlet ,my motor has along water pump on it and with dual fans there wasnt alot of room infront of the engine

soon as my t76 turbo sells ill be purchasing the 35's and the flanges/wastegates and this install will move right along

 

 

Yep, thats gonna look good.

 

just sold the 76 and the 50mm wastegate, twins are ordered looking at a 2-3 week timeframe till this is done

 

ill be using 2 of those

 

Nice, i'm actually going back to smaller snails myself. 61 or 64mm MP's now. I know the 61's will work well I'm just wondering if the 64's will leave more room to grow but offer much better spool time and performance over the 70's?

 

do u still have ur 61's? or do u have to buy new turbos.
i would think a pair of 66's would work out really nice on ur setup


who makes a 64?

 

I sold my T60's for these new T70's. Both master power since my setup is build around that dimension. Now I want to sell the 70's and was thinking either master power 61's which are a touch bigger than the old 60's, or the 64's which masterpower also has.

I think 64's will be a good bet since I also may change my cam out this winter Get a few hundred more rpm out of the setup and hopefully alot more power.

 

id go with the 64's, do the 64's have the same turbine wheel and housing size ur original 60's had?

 

Im not that good at power adders ive always built N/A engines and i was wondering what kinda turbos and how big should i put on my camaro. the car has a 427 BBC .489 intake and .483 exhaust cam with 11 to 1 compression. I have never superchargered or turbochargered my car i need a lil help

 

what rpms does the motor turn,what duration is the cam,and ur compression is to high unless u plan on running racegas/e85 all the time

 

yep, they all have same turbine and turbine housing a/r. There is a good bit of difference in spool between 60's and 70's so I have found out but my motor feels like a turd off boost when I first go WOT, so it may just be something else causing the delays.

Either way, 60-62mm stuff works well for a variety of cubes and power ranges between 600-1000whp from what I've been seeing lately. I think your 355 will do well with the GT35's.

 

the motor hasnt even been started yet im putting it in rite now im thinking it will redline at 7000 and the cam is 227 intake and 241 exhaust at .50 lift

 

that cam has a lil to much ex duration, should be about a 6* split favoring the intake side.7k in a bb? i dont see the motor reving that high and living, and i dont think it would rev that high with that cam

id go with a bw s475/488 t6 with the 1.32 housing, and like i said u would deff have to lower the compression ratio

 

yeah im not totallu sure on the redline it probably is like 6200 but the guy who had the motor before me said he had it all the way up to 7 before i got it, he had a different cam and heads to though but the bottom end was almost the same, i went through the motor after i got it got all new bearings had the crank checked and turned. it turns out that every thing i have is all forged to.

 

woot it feels like the day before christmas, both my new wastegates and turbochargers will be here tommorow, and my 2inlet and 2 downpipe flanges will be here on thursday


its going to be a very busy weekend for me

 

well the turbos they sent me are not t4 50 trims.

looks lke they shipped me a pair of 57 or 60 trims,not that im complaining lol
anyways ill get some pics up but first im oin to get the compressor covers off and mesure the wheels and see if they sent me 57's or 60's

 

have to clock the housings

 

lmao i woke up at 430 am today and started workin on the car by 5,anyways i didnt think it would be so dam hard to get the turbos on so it looks symmetrical.

its my fault since i built the headers without the turbos and didnt take into acocunt he offset of the turbine side.

trying to keep my ocd from kicking in and just mounting them as is but it puts one turbo about 1 inch further out from the center of the motor then the other grrrr

 

.... I go away just for a little bit, and now your back to twins lmao!

It's looking great, I wouldn't worry about the one turbo being an inch further out than the other one, as you could always correct that later on right before you hit the body with paint. Still going blue with silver flames? I'm anticipating the down pipes now, although knowing you I'm sure you have something up your sleeve (you certainly had plenty of time to think about it lol)....

How is she running w/the megasquirt, dialed in yet?

 

yeah twins were easier to package , downpipes will be 2.5 inch into the factory ypipe for now since the car has a 3inch catback on it already. once i order up some more tubbing im going to do 2.5 inch downpipes to just under the firewall were they will goto 3 inch duels dumped infront of the rear axle. ill be using bullet mufflers on the car since they are legal here.

i had the car running but then found out i had a 0010 block with a factory forged crank so installed some arp rod bolts and put some forged slugs in it. havent run it since. hopefully i can get the turbos fully installed by this sunday and have the car running again

and as far as the turbo sitting out 1 inch its driving me ****ing nuts lol so im prolly going to modify my one header a lil bit to fix that should take long at all to do


yes car is still going to be sprayed metalic blue and metalic silver though i dont know if im going to do the 2 tone top/bottom or blue with the silver flames yet

 

Good deal. I didn't want to say anything because I thought you might have been stuck with it for the time being, but now that I know your correcting it, that would have freaking drove me crazy too. Get it done asap. Good thing you went with a decent sized intercooler (for the turbo outlet merge). The 0010 blocks are so proven it isn't even funny, so I'm sure you'll do well with it. Four bolt main? Got some video of my project at the track and your not going to believe what she ran naturally aspirated Once I get my header situated finished I'll start updating the thread, but alls I can say for now is, damn. Nine seconds won't be problem....

 

yup 4 bolt main,good crank good rods and good pistons, so i definatly have a solid platform, down the road i will eventually bolt on a set of 210 cc afrs and a vic jr ( when i decide 9's arent fast enough lmao)

right now im working on a deal to pick up a 2004r with a transbrake for the car, if that falls threw ill be getting a 4l80e with a reverse manual vb so i dont need a computer to run it. overdrive is a must for this car the speedlimits out here are 80mph and i typically hell everyone typically crusises at 85-90

post them vids up

 

I got loads of updates coming w/those videos, and I got everything needed to make the conversion for boost to happen in a few hours, so once the headers are done, and when they arrive of course, she'll finally be completed (can't believe it's been a year since I began with this project). The stock stall was garbage with that cam, but she trapped well with it off the power brake. Once the 3500 stall went in, what a freaking difference....

 

oh man i havent been on here for too long, lol, its looking great, how close is the driver side turbo to the master cylinder? will everything fit under the hood?

 

hood closes just fine, the downpipe deffinatly needs header wrap on it were it passes the brake lines. i may not mount them in that location though i may move them foward and down or foward and out,

once it cols off a lil more today ill go drag out the welder and finish the headers and get them mounted were i want them

 

looks nice so far! mine sit up way higher than that yours is how i wanted mine to sit

 

ive been working on the car since 5am,so taking a lil break for some breakfast/lunch.
but it looks like another twin turbo thirdgen will come alive today

 

driver side is done now working on pass side,just needs some final welding on ds.
ps dont mind the c clamp i didnt have any nuts for the turbo bolts

 

need to move the passenger side turbo foward and to the left a tiny bit to make it symmetrical but here it is.
also have to finial my wastegate placement and weld these on but im getting alot done today

 

well it startd to rain so this is as far as i got but im going to change up the ps downpipe a lil bit and then mount the wastegates

 

Man you work fast! Should be driving it in no time!

 

that looks so cool! TPI and twins is a beautiful setup

 

thanks guys i musta resized the last 3 pics wrong or aomehting ill repot them here in a lil bit

 

with the rain this is how i ended up finishing out the day





tommorow i will finish up mounting the wastegates and plumb them back into the downpipes,and then just a lil finish up welding on the headers and the hotside will be 100% complete

the downpipes run into a 2.5 inch ypipe which were the 2 sides merge becomes 3 inch all the way back out to the muffler with dual 2.5 inch tail pipes

this is only temporary as once i get some new tubing and 2 bullet muflers the car will be getting dual 3 inch ex with turnouts infront of the rear tires

 

Dave, it's looking and coming out really sweet. Can you post a picture of the turbo headers on the engine without the turbo's on them, I want to see how high the flange is on the header in relation to the valve cover, as well as how they are clocked. Thanks bro....

 

the flange is valvcover height on ds if it stops raining today ill remove the turbos and take some pics for ya .

ps is same except flange is rotated more 2 th side


ps is 45* from the top of the tube
ds is like 15*

 

no real progress but i did start some body work

i ot rid of the firebird spoiler and installed a non 3rdbrake light 3 piece spoiler
had 2 drill 2 new holes in the decklid and had 2 move the holes back on the tops of the side peices to get them to sit right

i need to do a lil more fitting and realign the hatch so it sits right

im also debating on a satin black paint job for the car
anyways tommrow i am going to pick up some supplies to sand and prime the whole car i hate body work but luckily thre is only one minor minor dent in the ds rear quarter panel
hell the doors dont even sag on this car

 

I wish you still lived in Jersey Dave cuz I have an Iroc hatch just sitting here. I see a sawzall in one of dem dare pics, whatcha cutting lol? She's coming along nicely....

 

lol thats what im cuttin all my tubing , the only reason i had to drill new holes is because the car was supposed to have a 3rd brakeliht spoiler

 

.... lmao, I should have known. I forgot how freaking impatient you are, and have no time for a hacksaw to cut the tubing. Hmm, soon you'll be caught up to me lol. When will you have some idle video's up?

 

maybe when the thunderstorms stop

 

alright so heres the car



and the spoiler installed





the holes i need to fill from the firebird spoiler and as u can see i need to align the decklid and adjust the side spoiler pieces a lil bit




and heres all the bdy work i have to do

first up ds rear quarter

 

the hood


ds window post



and thats about it

 

im wondering how youre gonna be routing the ic pipes... 90* elbows on the turbo compressors?

 

no im oing to have both charge pipes go twards the passengerside and then merge into a single 3 inch pipe in the fender and go down and under to the inercooler

dual 2 inch pipes fit riht over the top of the battery down into the fender