94 Olds 442 Twin V6 (LN3 rear- L67 drop'n front) now 462ci! - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 01-21-2005, 11:31 PM   #1
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Default 94 Olds 442 Twin V6 (LN3 rear- L67 drop'n front) now 462ci!

You can do anything with a plasma cutter and welder!

What do you do when your best friend (AL) wants his 1994 2dr Cutlass Supreme to go faster (besides decking/porting the heads and putting ported 3400 upper and lower intake on the 3100) and you have suddenly acquired a 90 Olds Toronado Trofeo (for free)? I'll tell you:
You fire up your plasma cutter remove the engine/tranz/subframe and front strut buckets from the Trofeo then you proceed to remove the harness and ECM/BCM etc. from it also (LOTS of "useless" gismo'* on the Trofeos)
Then you take the Cutlass gut it and tube cage the back half of the car while removing everything (not required) with PLASMA cutter (one of my best investments).
To make it short, weld in the front strut buckets from the Trofeo in the (old) rear strut position and build outriggers from the cage to bolt the front Trofeo subframe into the rear of the cutlass.
Bolt in the 3.8L v6/Tranz into the subframe and lower car back onto the subframe load in the 15 Gal fuel cell and Aeromotive pump and an-6 and 8 lines (so he can drive it while I reduce the Trofeo'* harness to the essentials and make a VATS/PassKey simulator for the ECM)
Find out that the (now) much larger rear brakes will lock em up and install Adj. proportioning valve!
After I finished the harness (Al is horrible at electronics) I eliminated 53 lbs of a 65lb harness and made a signal generator (30Hz ground pulsed) to simulate the OEM VATS signal so that engine will run without killing injector pulse--Anti theft. We installed the rear battery (more room up front for ram air) and ran the main power/ground and got to listen to the sweetest sounds!
TWO V6'* with open exhaust!
We have finished the dual shifters and the rear throttle cable/axleshafts etc. and put a Flomaster on the front engines ex. (fits great where that d**n Cat once was!) and then we went for a ride!
Where the front used to just unload and spin the tires now it does it but the rear squats and GOES! What a difference!
We are planning to go to Byron IL dragaway/ Great lakes dragway, but Al has to finish the new console and door panels interior stuff we had finished the rear (removable) firewall but he is doing the finishing touches while I am away. He is making it look like a GIANT Subwoofer box complete with fake speaker grills! This will (hopefully) make the tech inspector not notice the rear engine and think she is all STOCK! I can't wait to get back to working on her after this winter!
She will always be a work in progress, you can see it is truly a homebuilt 94 442 (400(total) hp-4 wheel drive-2(twin) engines)
Future mods include a T04 turbo for the 3.8L (and maybe Nitrous) to help push her off the line, and a DIY EFI MegaSquirt v2.2 ECM to control it at that point (costs the same and is much more tunable than a JET chip)(uses Assembler and even has shareware to use a Windows based fuel map adjuster!)
That first ride with both engines had us grinning ear-to-ear more than enough to make us want to do it again with maybe a twin engined Pontiac GTP!

Here are some pics this one is Al in his cutlass (16.51 at 83mph) and me in my low budget 74 Nova hatchback (13.52 at 103mph). This is our baseline testing of the cutlass before we really started hacking her up
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Definitely behind the seats! This was after we set up the fuel system but before the wiring of the rear engine. He wanted it drivable for a getaway car after his wedding to a true gearhead chic-Amanda. She didn't even get pissed when we had used the dishwasher to clean engine parts on the 3.1L and 3.8L- yep she still married him even after we tracked ATF all over the driveway
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And of course the trunk view, Now the rear engine compartment including the Aeromotive pump. In the upper right (I hope you can make it out) is one of the caged chassis outriggers that bolts to the stock front Trofeo subframe. The Rear engines Exhaust will be run to the Left rear and we will be running the Front'* to the right rear. All we have to do is throw the Catalytic converter on and take it to the test center to have the Emissions tested (with the rear engine off)
I talked with him and he said his mpg hasnít went down but 2mpg to 20mpg with the rear engine off. He has set up an ATF pump to circulate trans fluid (rear trans in N eng off) while he drives. Until he gets another Flowmaster for the rear Ex. he doesn't dare start it on the street unless there are NO FUZZ around. last summer he raced my friend Kenny in his 350sbc 84 Cutlass and stayed neck and neck the whole way from 30 to 90mph. Like I said, I can't wait to finish her up

newwer pics of Al'* and I'* project, the 94 442 Olds (400 Hp (total)-4 wheel drive-2 (twin) engines)
we are hoping to be finished with all the interior work by the begining of racing season so he can race me in my 74 Nova,
long live lowbuck/redneck hot rodding!
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this is the rear engine (3800 S1) bay (view from behind the drivers seat) with the new radiator/cooling fan
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the front engine of course-3100
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this is the rear engine bay (view from the trunk) with the harness installed and the new throttle & shifter cable (a 14 ft Morse Cable cost'* $$$$ lol)
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the Bada$$ 100psi Aeromotive fuel pump for both engines (4 port regulator with 2 xtra ports for future N20 and Turbocharger fuel enrichment feeds
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and a rear 3/4 shot with a little of the dual exhaust rear bumper (from 3400DOHC convertible) to look good for each engines exhaust tip

we will be doing another twin engine vehicle soon (87 Lebaron GTS-2.2L turbo), and who knows we might start doing more of em.
well what do you think? I know its not a Bonnevile but have any of ya thought about twin engines?
James
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Old 01-22-2005, 12:01 AM   #2
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wow.
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Old 01-22-2005, 12:06 AM   #3
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Wow indeed. Great job. I've never seen, thought of, or heard of anything like this being done. That must be a blast to drive.
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Old 01-22-2005, 12:56 AM   #4
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i want to get a video of another burnout, the one burnout we already did was awesome! front engine in D and the 3800 in R and a bit of bleach/dawn on the wetted down road the 3800 pulled it backwards after the front engine upshifted and took him out of the puddles-talk about a jolt! we should have wetted down the whole street or waited fer rain but....... why wait.
Talk about loud with the front exhaust just a flowmaster 2 chamber and the rear open exhaust! a really uniqe sound two v6'*!
it was during our first test drives that we noticed that the stock toronado halfshafts were pretty wornout, but with the new ones there should be less slack in the driveline, less jolting LOL
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here'* Al'* ugly face with the new reman axles for the rear toronado 3800.

we do want to get a D&R burnout on video though! maybe even put the front into R andthe rear into D lol make it a compact car LOL (dont think that it could do anything with the 2x3 inch subframe rails/cage lol)
schlim
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Old 01-22-2005, 01:38 AM   #5
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welcome man whats up from the old connection.
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Old 01-22-2005, 01:41 AM   #6
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good to see it comin along (sry double post)
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Old 01-22-2005, 01:42 AM   #7
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nuthin much! how ya been? been looking fer stuff for the 3800 S1 and found some great info here (the 1.7 roller rockers etc) but i think i'm gonna modify some BBC ones/screw in studs on my friends bridgport mill to work for us (even though the turbo will be fixing the lack of power lol)
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Old 01-22-2005, 02:20 AM   #8
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WOW That is sooooo crazy dude ive seen pictures and videos of duel engine cars b4 but they were all 4 bangers...
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Old 01-22-2005, 02:24 AM   #9
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Ahhh... Vin C at it'* finest. Considered swapping to a Delco ignition?
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Old 01-22-2005, 02:33 AM   #10
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Thanx, yeah the magnavox ignition will be going when we go with the DIY MegaSquirt EFI gen II system (with onboard ignition board/spark maps) when we start with the turbocharger setup this next fall/winter.
fer now it'* track time and dialing it in (gotta make sure the progressive throttle setup works right etc) is taking precedence (plus gotta do rear wheelwells/fender flares to fit new rims and 255 or wider rear tires (planing on flaring the front to fit 245'* at least) for rims we were planning on some torque thrust II'* for a vintage 442 vibe.
still have work to do but at least she'* ready for the dragstrip! gotta get some #'* lol
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