Cascade Crew

QwkTrip · Posted: Fri May 19, 2006 8:30 pm Post subject:

Centrifugal supercharges, such as Vortec and Paxton, don't tend to decrease fuel economy while cruising. Granted, it takes extra power to turn the pulley while cruising but it is hardly even measurable in terms of decreased mileage.

Massive power and fuel economy is going to take money. Lots of money.

1. You'll have to use a modern vehicle with inherently better mileage ($$$$). You're mileage won't get any better than stock so you better begin with good mileage in the first place. Examples are LT-1 or LS1 car with 6-speed manual. Vette does better than Camaro.

2. You'll have to get the extra power by using forced induction ($$$$). To get power out of a naturally aspirated engine you need either cubic inches or rpm production. Both use a lot of fuel. You want a stock type camshaft with good flowing heads and some boost.

A real world example is my '94 Vette. It had a Vortec with 12psi boost, stock camshaft, ported heads, balanced engine, lightweight flywheel, ceramic coated exhaust, and the list goes on and on. The result was 25 mpg on the freeway in 6th gear and 12.2 @ 121 mph in the 1/4 mile on street tires. This qualifies as good mileage and massive power. $15K in modifications on top of the car.

Okay, but here's the secret. Let someone else build the car and lose all that money. Buy it from them and get all those parts for free! I bought my Vette for typical book value. I sold it for the same a year later. I didn't lose $15K in mods. Very Happy

rjmcgee · The Hammer Joined: 08 Jan 2004 Posts: 2320

Danked · Posted: Fri May 19, 2006 8:33 pm Post subject:

QwkTrip · Posted: Fri May 19, 2006 8:37 pm Post subject:

Mustang 5.0 with single turbo. Honestly, it's probably the best mix of performance, cost, and economy. The rear won't fall out when you get traction either.

rjmcgee · The Hammer Joined: 08 Jan 2004 Posts: 2320

Danked · Posted: Fri May 19, 2006 8:38 pm Post subject:

probably.. but i like camaros Sad

aaron_sK · Posted: Fri May 19, 2006 8:39 pm Post subject:

Danked · Posted: Fri May 19, 2006 8:42 pm Post subject:

if i put smaller gears in my rearend would my v6 burn out when floored?

QwkTrip · Posted: Fri May 19, 2006 8:43 pm Post subject:

Then look for a '86 or '87 Buick T-type. It's a 3.8 V6 turbo in a full chassis car with a 200R4 transmission. Similar to the Grand National setup without the Grand National price tag.

Twilightoptics · Posted: Fri May 19, 2006 8:50 pm Post subject:

[quote="Danked"]if i put smaller gears in my rearend would my v6 burn out when floored?[/quote

lol way too many variables.

A competent driver can get any car to burn out.

I've got a pic here somewhere with my 2.8L Jimmy... 5 spd, 3.73, 29-30" tires with lots of tread, burning through all 5 gears hehe.

And yes, it could burnout without 2 High LOL

Xophertony · Posted: Fri May 19, 2006 9:57 pm Post subject:

84transam383 · Banned Joined: 25 Jan 2004 Posts: 431 Location: bend, or

and then watch it not fit because the heads hit the strut towers Rolling Eyes

Xophertony · Posted: Sat May 20, 2006 3:06 am Post subject:

BFD put TTA heaads on it Very Happy

BTW they will fit with some... creative... encouragement. there was a big thing about it on www.turbobuick.com about a year ago. guy had a GN angine in a 91 camaro. crazy sawzall madness Smile

84transam383 · Banned Joined: 25 Jan 2004 Posts: 431 Location: bend, or

this is why you dont let rednecks loose with power tools,beer,and a 3rd gen.i rememebr getting into some big ass debate on tgo because some fool wanted to cutup his rear cargo floor so he could swap the pump,becuase his had failed. so instead of raising the car,undoing the shocks,and letting the rearend swing down,and dropping the 2 bolts to get the tank out,he would have rather cut his floor to hell with a sawzall{his own asking and prefernce of tool},now take into effect the tanks less the n3/4 inch from the cargo floor,one can only hope there was an early 4th of july if you catch my drift,if you do something that stupid,you deserve what happens.

i guess if it was a pure drag car or something,i could see the modifications to just fit the motor in there,but even then its half assing it. the fwd heads flow more then the regular GN heads anyways,so why not just do it right and gain a few ponies in the process?

Xophertony · Posted: Sat May 20, 2006 11:44 am Post subject:

amen to that. the TTA uses 3.4 FWD heads ( i think, maybe 3.1) though they did have some cooling passage modification IIRC before being fitted, but oi could be wrong about that. yeah, back when i was looking into that swap for my 2.8 i was doing alot of research, course i have forgotton most of it now. Rolling Eyes

but i still think it woulds be cool to have a TTA engine (sortof) in a regular looking firebird. ultimate sleeper.

also NOT that i condone cutting a hole in your floor, but: chris and i used an angle grinder to cut out his floor so rodney could use the piece to patch his hole (prior owner). i must say, we NEVER hit tank. and we were grinding all up in that bitch Very Happy

it is not that hard if you are halfway compotent. of course, it took almost as long as droping an axle. i don't see why anyone would pick that over doing it right. too much risk. besides dropping the axle is fun, and allows you to get a great fee lfor how your rear suspension works. thats how i learned most of what i know about our cars suspwnsion geometry, taking it appart.

Quasi-Traction · Posted: Sat May 20, 2006 3:10 pm Post subject:

Quasi-Traction · Posted: Sat May 20, 2006 3:22 pm Post subject:

Xophertony · Posted: Sat May 20, 2006 3:23 pm Post subject:

chevymad · Posted: Sat May 20, 2006 4:05 pm Post subject:

The trick is to use fwd 3.8 heads. It's what the tta heads are. Can't remember which car exactly has them but one of the fwds is exactly the same.