how much power would you gain with an exhaust, BIM, headers, and big bore throttle body? how much with a turbo?

 

cat bak exhaust -5 to +5 WHP
BIM 3 WHP (with BBTB)
headers -5 to +10 WHP
big bore throttle body 3 WHP (with BIM)

how much with a turbo? +50 to +450 WHP depending on what else you replace/add with the turbo.

 

if the boost was at about 8-10psi and without doing too many engine mods...

 

the beta is a turbo engine. save your money and buy a turbo. trust me (and random). for the money you'll spend on all of the n/a upgrades, you could get SO much more with a turbo. i wish i hadn't spent all of the money i did. the only thing that's good to get is an exhaust because the turbo needs that outlet.

 

On the stock BETA engine. Without changing any internals. IE, Pistons, CAMS, Rods or the head gasket.

You should be making between 170-190 wheel hp turbocharged.

on the 2.0L engine.

Just remember, you need alot better tuning and a nice big intercooler ot keep intake temperatures down. Dealing with 10.3:1 compression will cause a high chance of detonation.

[ November 26, 2002, 04:48 AM: Message edited by: Shadohh ]

 

Shadohh? What if you DO change Internals IE,.... BBTB, BIM, Port and Polish Head, and 0.020Bored Block with High compression Pistons and stonger Rods, with lighter flywheel and say HVE cams & 4-1 headers, what can you expect Horse Power wise from that?

[ November 25, 2002, 04:36 PM: Message edited by: KillerShark68 ]

 

I think N/A they around 200-210 whp

That includes nice lumpy cams, which make you idle the car at 2000rpms so it wont stall.

Not to mention QTB which requires tuning every month. And umm, oh yeah its not street or emission legal.

If you changed the internals for a turbo setup? Skys the limit, how much money you got? You can make from 190whp-700whp, course once you go above 400whp you wont see the engine lasting more then a year.

Note - high compression pistons are for N/A
Low compression pistons are for F/I

[ November 26, 2002, 04:48 AM: Message edited by: Shadohh ]

 

Shadohh,

What kind of tuning would be required to run the Beta at stock compression? Would it mainly involve playing with the timing and fuel maps via a 'piggyback' type ECU?

 

Huh? running a Stock BETA woudl require a Stock Ecu running stock fuel and timing maps.

 

what power gains does the 1stgen tib get with a cat-back...someone on the forum must know its just that im due to get one fitted and i want to know if ill get -5whp or what? someone out there must know - assuming its a quality free-flow catback system!