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Discussion Starter · #1 ·
Hey guys,

I've been rocking a Hellion single turbo kit (Turbonetics 76mm) since 2005 and at the time of the install, I thought that would be PLENTY of power and would never want/need any more….. lol. I got used to the power real quick but instead of upgrading the turbo, I decided that I would spend a few years making use of the kit. Well, this past winter I decided that I was ready to go bigger/better but the only way I could justify spending any amount of cash on my car is that I had to have a setup that would net some significant results… I was already running 10.5 with a crappy 60' on a pump gas tune and I know it had low 10's in it… so any upgrade would put me in the 9's but if I'm going to drop a chunk of cash on this project, 9's wouldn't be enough… I wanted 8's in a close to stock weight car. I understand that it would have been easier sticking with a single setup and you can bash me all you want but I chose to go twins… sue me :) I used my tax return to by the hot/cold side of the turbo kit… Then I sold my single kit to purchase the twins. I've been purchasing all the supporting mods over the past couple of months.

Key Notes:
  • I don't have the budget to fully maximize this setup so we'll have to wait until next year to see its true potential
  • I'm on a cash-only budget so things move a little slower when it comes to acquiring parts
  • I'm doing as much work as I can myself in my apartment garage and I work a lot of hours so completing the project is going slow as hell

Current Setup:
2001 Cobra
4.6L Teksid, Stock Crank w/ Manley H-Beams and Manley 11cc Pistons
Stock Termi Heads
Stock Upr/Lwr Intake
TH-400
Stock ECU
Dual 255's (in tank)

Twin Turbo Setup:
CG Fabrication Hot and Cold Side
Precision PT6766 CEA Turbos, Journal Bearings, Ported S Housings, T4 Flanges, .81 A/R
Notes: I feel that pushing some twin 62's would have allowed me to reach the 8's but I really wanted to shoot for mid 8's in the long run without having to max out the setup. Next up were the 6466's but damnit they only come in BB and they're $2,000/each…. So I said screw it and went up one size to the 6766, journal bearing, and they cost $1,300/each… kind of hard to pass up $1,400 in savings by going bigger :-/

Supporting Mods:
Tial Q BOV, 11psi spring (for now)
Precision 46mm Wastegates
BA5000 MAF
Bosch 105lb Injectors (will be running race gas for now)
Need some suggestions on fuel pumps…

I told my tuner I'd like to be around 1,000rwhp for now because that's the most I'm willing to push the H-beams so I don't really have an ET/MPH goal initially… After plenty of research, I've seen several people say they've pushed them further and some say they're only good for about 600-750rwhp… I don't plan on spinning this motor past 7k so I think I'll be ok.

Down the road, I wouldn't mind throwing a set of billet I-beams in there, porting the heads, bigger cams… would love to upgrade the upr/lwr intake… would really love to run E85 but at that power level, an aftermarket ECU will be a must and I can't swing all that right now… I feel that with this setup, I can make some serious power right now and make even more with said upgrades.

Twin Turbo Install:
As of last weekend, I got the driver's side header and up pipe installed and the turbo temporarily installed (for pictures of course)
Passenger side is giving me hell… after pulling the starter, dropping the AC compressor, re-routing some brake lines and removing the factor header studs, I got the header installed. The up pipe install will require some more re-routing of the brake lines right where the enter/exit the ABS… I called it a night at that point. Will start again this weekend.

Parallel Projects / To-Do List:
Relocate Battery to Trunk (using Blk_03's ultra-safe diagram and same shut-off switch… don't worry, I asked his permission first)
Modify Coolant lines (MMR crossover delete and removing bypass hose from x-over to t-stat housing for additional room… thoughts?)
Relocate Oil Filter (CGFab adapter… I have an FRPP adapter for sale for a WAP/Aluminator block… bought the wrong one… M-6881-A5)
Relocate Power Steering Reservoir (just moving it out of the way sprung a leak somewhere… FML)
Relocate AC Line (I think it's the Accumulator? Either way, it coincidentally sprung a leak when I was removing my single turbo kit… it's current position also blocks the passenger side up pipe… Not sure if I should buy a replacement and try to modify it to clear the up pipe or do something else…. Thoughts?)

Pics:

Stacking parts in kitchen (pissing wife off)


Hot side (before/after ceramic coating)








Cold Side (CG Fab included 3.5" MAF Tube for slot style)








BOV/WG




AN Fittings (bought individually off Ebay rather than paying a small fortune at Summit)


Them Twins












Kitchen Pic


Install (In work)

Batter Cutoff Switch






Turbo






AC Line that sprung a leak and is in the way





For Sale:




 

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Very nice!! I'm considering the same C&G hot and cold side with PT5858 CEA's/T3. Look forward to seeing your progress.

Just curious, I've seen two CG TT set-up both mild steel and powercoated...why not stainless? I figure the cost would be not too much more add powder coating.

Thanks and great build man!
 

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Nice setup. Those 67's can take you deep into the 7's. They are some bad turbos. It looks like you got the gt42 compressor housings are they 3" outlets?
 

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7's! Now it might take 40+ psi to do it. Or at least it would on my car.
Well those will be the next turbos I buy then!! lol And probably the next YOU will buy as well.

Killspray_01, nice build so far. I love that battery cut off...good idea. Car looks clean.
 

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The mild steel helps with heat expansion and is more resistant to cracking. In my experience stainless turbo headers eventually crack at the welds.

Nick

Very nice!! I'm considering the same C&G hot and cold side with PT5858 CEA's/T3. Look forward to seeing your progress.

Just curious, I've seen two CG TT set-up both mild steel and powercoated...why not stainless? I figure the cost would be not too much more add powder coating.

Thanks and great build man!
 

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Agreed those turbos will make all the power you want. This is basically my turbo kit pieced to together you will be really happy with the efficiency of this setup.

Nick

Nice setup. Those 67's can take you deep into the 7's. They are some bad turbos. It looks like you got the gt42 compressor housings are they 3" outlets?
 

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The mild steel helps with heat expansion and is more resistant to cracking. In my experience stainless turbo headers eventually crack at the welds.

Nick
Thanks...good to know. Just might save me some $$$ and headaches down the road.
 

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Discussion Starter · #12 ·
Nice setup. Those 67's can take you deep into the 7's. They are some bad turbos. It looks like you got the gt42 compressor housings are they 3" outlets?
Thanks bud, they have the ported S housing which has 2.5" outlet... I agree, these turbos are killer and are capable of a lot more that what I'll be using it for at this point...

- - - Updated - - -

Well those will be the next turbos I buy then!! lol And probably the next YOU will buy as well.

Killspray_01, nice build so far. I love that battery cut off...good idea. Car looks clean.
I appreciate it good sir! I have to give credit to Blk_03 as it was his idea long ago... i contacted him and found out where he got it from and had the guy make me one...
 

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Noticed you posted that you're relocating the oil filter. I thought CG Fab retained the factory oil filter location?
 

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Discussion Starter · #14 ·
Noticed you posted that you're relocating the oil filter. I thought CG Fab retained the factory oil filter location?
Nope, that forward facing header doesn't like the bulky oil cooler/filter...
 

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Any progress? Im trying to decide what 3.5 in pipe goes where... Im thinking the twisted pipe goes through the fender to give tire clearance and basic 90 comes out of the ic?
 

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Discussion Starter · #16 · (Edited)
Any progress? Im trying to decide what 3.5 in pipe goes where... Im thinking the twisted pipe goes through the fender to give tire clearance and basic 90 comes out of the ic?
Well, i only got a chance to jack with it Saturday morning... i moved some brake lines around, located the passenger side up pipe and test fit the turbo... immediately realized pretty much ALL my brake lines right there need to be moved around... i installed a line lock last winter and the way i routed the brake lines are right in the way... So i was jacking with that primarily... been too busy this week so I plan on getting back on it this Saturday/Sunday... slowly but surely... i haven't even messed with the cold side yet but you're most likely right... and you also have the MAF housing...
 

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Discussion Starter · #17 ·
few progress pics...

Both turbos temp installed (notice only 1/2" clearance to radiator inlet)





Intercooler mock-up (notice 1" gap on tabs)



Cold Side mock-up (honestly thought i was going to have to relocate my oil cooler :rock:)







Battery Box (notice the f'd up first set of holes... oops)





 

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Discussion Starter · #19 · (Edited)
Mini-Update: Dropped off my intercooler and radiator at Gear Heads today for some minor tweaks...

Intercooler:
Caleb from CGFab and another member on here (mr95gst) both say the intercooler should bolt right up... looks like the 01 & 03 Cobra are slightly different. Having Gear Heads in Arlington move the tabs up 1 1/16". Shouldn't be too big of a deal.

Radiator:
I only have 0.5" of clearance between coolant inlet and turbo. Having Gear Heads cut off the inlet and weld in a 90deg elbow.


I'll try to work on it a bit this next week and hope to make some significant progress next weekend.


To-Do List:
Move Line Lock solenoid as it's clashing with cold side
Figure out how to modify the AC discharge line to clear turbo and cold side
Trim fan as it's clashing with the driver's side up-pipe
Relocate power steering reservoir
Buy/Install coolant overflow reservoir
Route Alternator/Starter/PowerDistribution cables through car
Finish wiring for battery cutoff switch
Install remote oil filter


getting there...
 

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Do you foresee any clearance issue with stock fan? Looks like its going to be tight at pre intercooler pipe off the turbos.

Looks great...Thanks again for sharing your build.
 
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