Twin engine tube frame, possible?

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dareo
Posts: 892
Joined: Thu Jul 17, 2003 10:13 am
Car: 1993 Q45, 1989 240sx

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Here's some preliminary specs for my nissan powered tube frame super car.Tubing=Titanium, if possibleBody-AlumanumWheels, 24"x12" with at least 425 series low pro tiresEngines-Vq35DE-TT Fully built with twin T3/T4 turbosEngines are FWD, AT models. Auto trannies are regeared rebuilt/reinforced as needed.Any injector uprades are also performed as neededsingle 20 gallon fuel tank, two pumpsmassive radiators and intercoolers, front and back mountClutch type LSD units or better must be implemented2 of Recaro's finest racing seats4 wheel power steering2 18" brake rotors per wheel, with dual 4 piston calipers on each rotor.4" turbo back exhaust, one for each turbo.

any window panels will be made from 1/4" lexan or stronger. Windshield can be glass.

Totally standalone engine management(s)

Race gas, nothing but. Mobil 1 synthetic too.

Chassis must be perfectly balanced, 50/50 to 52/48 weight distribution.

Would a car like this be possible to build, provided i had at least 100k? My question to you engineering geniouses, what would this car weigh?And would tuning these motors to 1000whp each be too unrealistic? Anyone care to guess potential track times as well? And if you have any ideas to highten the performance of my supercar, using production Nissan motors, lets hear it. (RB26DETT doesnt count as an in production motor anymore)


Eswift
Posts: 1194
Joined: Mon Jul 29, 2002 4:48 pm
Car: should be obvious enough

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for 1-off production? 100k in parts and labor to build, minimum.

R&D easily over 100k mark itself, too.

twin engines? why? all that engine and steering and radiators will really weigh you down.

even with a Ti spaceframe, unless every other part on the car is custom-made to be lightweight, the car is going to be 400lb per engine, frame=350 lbs, steering, suspension, wheels, brakes=400lb even using Cf everywhere you can.

i would like to see it done, but if getting a one-off 600cc chromoly spaceframe car made with only 1 seat costs nearly 40 grand and weighs over 450lbs... i would say your costs will be an order of magnitude higher, and your weight will be at least 3x.

hard to think about such an abstract concept, but thats my best insight.

dareo
Posts: 892
Joined: Thu Jul 17, 2003 10:13 am
Car: 1993 Q45, 1989 240sx

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If it was to be cheap, one could just take maxima clips and weld it up to a midsection, reverse the steering on the rear. if the car weighs less than 3000 pounds its all good. The point of dual engines is for the most bullet proof type of AWD i can think of. theres no heavy transfer case, or even RWD power loss. Two frontwheel drive engines, but one happens to be in the back. if you've seen the twin engine turbo'd Tiburon run a 10 second 1/4 on stock street tires, you can see the inspiration behind my supercar.

The speed potential of a light twin engine car with massive traction blows my mind to even think about. 1000 horse per axel? Moving 3000 pounds? 3 pounds per horsepower? I could see a 4 wheel burnout started at 100mph. it would be awesome!

If it was street legalized, running one engine and shifting before it boosts would net over 20mpg in the city as well. It would be a frankenstein supercar for sure.

The frame would cost probably 10k to R&D and have made, but lets use alumanum instead, titanium would probably cost a buttload. The engines and trannies could be had and built for probably 10k each. That puts us at 30-40 grand for a frame with engines installed. throw another 20k at some CV joints, hubs and struts, some massive brakes and a huge wheel/tire combo. Spend the rest of the 100k on guages, fuel tank and pump and interiour and that stuff. Then go find somebodies lambo or ferrari and show them what a 'Nissan' can do. If they can have a V12, why cant i have two V6's?

dareo
Posts: 892
Joined: Thu Jul 17, 2003 10:13 am
Car: 1993 Q45, 1989 240sx

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And as far as why bother cramming two engines on one car? Two reasons, #1 is Who else has a car with two engines? #2, if someone was to design a frame for this, it could be perfectly balanced. Perfect balance, 4 wheel drive with unparalled reliability and efficiency.

Well scratch the reliability if your making a sht load of power on both motors. But hey, if you break one engine, the other one will get ya home, and still be able to pull you a 10-11 second slip all by itself.

This car needs a good name though.

Nathan
Posts: 5629
Joined: Fri Mar 07, 2003 6:43 am

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I'd look more towards chromoly as the frame, I dont think aluminum is strong enough. I really dont think it's the best idea though, mostly because I think you'd be better served with a VERY lightweight vehicle with one strong engine and AWD for a car on the street.

Russ3Z
Posts: 21
Joined: Sun Jan 19, 2003 2:32 pm
Car: 300ZX

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Who else has a car with 2 engines? Ask Warren Mosler, he's had a twin engined Cadillac for a few years now. Cant recall which model it is, I'm sure you can find it on his company website though.

dareo
Posts: 892
Joined: Thu Jul 17, 2003 10:13 am
Car: 1993 Q45, 1989 240sx

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You make a good point. ALU would make this thing rediculously fast, and crashing would be like crushing a soda can. I'l have to use a different material, or put on my Macho fasad of I'l never crash.

Oh and thats TWO strong engines haha

dareo
Posts: 892
Joined: Thu Jul 17, 2003 10:13 am
Car: 1993 Q45, 1989 240sx

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Ok, so a few guys have twin engined cars, but there pretty rare. Cadilac would be a fairly easy twin engine car, the trunk would afford the biggest SBC you would ever want.

But a twin engine caddy probably weighs 4-5k pounds. Thats a lotta metal to try and keep connected to the road via 4 tires.


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