The All About My Monte Carlo SS Thread

[motorhead]

Just thought I would share some highlights/milestones in my on going TT/EFI build for my MCSS. Basically it is going to be a twin turbo 355 SBC, with a 200-4R and a set of 4.56s in the back. Full details are here: http://www.theturboforums.com/smf/the-turbo-'builds'-board/'87-monte-carlo-ss-ttefi-build/ (you may have to sign up to see the pics) because rewriting this over and over is lame.

But, if you have questions just ask. Comments will be kept to yourself... damn peanut gallery.

[motorhead]

More...

[Steve Wood]

So why 4.56's when the normal idea is to load turbos so they will spool easily and make some boost?

[SuperSix]

I was wondering why you chose a 200R4?

[motorhead]

Gents both fair questions.

1) 4.56s because that is what is currently in the rearend and I am not funded to change them at this time. Although I want to go numerically lower. It should be noted that I am running a 28" tall tire, and considering going to a 30" tall tire in the future.

2) The 200-4R is also existing and is pretty well built. I am seriously thinking about going to a manual trans when funds allow.

Previously this engine would rev out to 6500rpm and go 110mph in the quarter NA and hit 116mph on a 100 shot of nitrous. The gears are good for about 120mph in 3rd at this same RPM +/-. It will be interesting to see what effect the turbine side of the turbos have on the powerband; I am prediciting that they will draw the RPM down some despite the Vortec heads being vastly superior to the 8445s on the Buick V6. In the future I'll be looking to larger turbos with larger exhaust housings to offset this problem.

[Steve Wood]

well, LC ran 4.11s in "Black" in the old days and was one of the fastest at the time with 28" tires as I recall.  Nothing ventured, nothing gained and I understand the economics. 

Nice looking set up.  It's good to see someone jumping in from scratch.  It used to be the normal way before we started buying recipes.

[motorhead]

Thanks, Steve. This project has been a long time coming (6 years of planning and parts collection) and I finally worked up enough nerve to tear into a car that was running pretty well overall. Building crap with my own hands is probably the most rewarding part of the work.

[Steve Wood]

it always is...

[motorhead]

Got a little more work done over the last few days, specifically on the downpipe and some minor system adjustments. There were definitely some things to take into consideration when putting the downpipe together, not just the physical bits that get in the way or the distance around those things that are heat sensitive (fluids, rubber/plastics and electronics); but also the functionality of the piece and surrounding components. Things like accessing the power steering cap or being able to install the front header bolt which also holds the brace to the turbine inlet flange. In the end it worked out if not for looking a little askew. Overall the clearances are good.
 
 Onto the passenger side...
 
 Oh and I started dinking around with the air filter placement/routing.

[motorhead]

One more...

[daveismissing]

good thread.

[TURBOPOWERED68]

is this an old school SBC?

[motorhead]

is this an old school SBC?

It is. Based on a Gen I (Mexican cast and built) 4-bolt main Goodwrench crate SBC with Vortec heads (semi Gen II).

[Steve Wood]

The more askew a turbo car looks, the more impressive it becomes to onlookers!  Weld it up well and take your time grinding the welds smooth and it will draw plenty of oohs and ahs....

[SuperSix]

Are those nylocks on the exhaust input flange bolts? Won't those melt?