What kind of hp gains will you get from boring your 52mm TB to 55mm? Is power really noticable?

About 5-8 I think. Maybe that extreme420a site can do it. Not sure yet ask PuRe RaGe.


Still being designed but worth a look!
www.extreme420a.com

I think 5-8 hp is very optimistic on a mildly tuned car. Maybe you could get an extra 5-8 hp on an engine that was already pushing 200+. On a mildly tuned car, I wouldn't expect any noticeable power. What you will notice is a great increase in responsiveness. The car will jump when you press the throttle. Its alot of fun around town, until you get used to it.


Corbin
'95 ESI-T
HRC + FMIC

"Its alot of fun around town, until you get used to it."
So is every mod Corbin... that's why we can never stop modding!

I do think the bored TB is worth a few ponies at the wheels though.

"Character is doing the right thing when no one is looking."
Michael J. Kulaga e-mail: Michael_97RS@2gntDSM.zzn.com
aol IM: MJKulga Website: http://highlander.dsmpower.com/

Injen CAI, 55mm TB, Hooker 4-1 Stepped Header, GS-T Muffler, AFX UDP, S-AFC, 8.5mm Magnecor Wires, SS Clutch Line, NRG Susp. Motor Mount Ins., FU/RU/RL STBs, TSW Blade 17x7.5, Bridgestone Potenza RE730 215/45ZR-17. Front KVR Cross-Drilled Rotors and Carbon Fiber Pads

To Be Installed: Rear disc brake conversion kit, SS Brake Lines, Rear KVR Cross Drilled Rotors and KVR Carbon Fiber Kevlar Pads, EGT (partially installed)

Hey guys-

Kory told me that having a bored TB will mess up your idle- now is this because it isn't installed right? have you guys had idle problem after replacing your regular TB with a bored one?

Well cory is like half right! Mine does seem to want to idle high when comming down from high rpms, and you will probly not notice any difference in HP, but it will "jump" quicker!!!







1995 RS
16x8 Momo's
CAI
4-2-1 Headers
2.75 in Tenzo cat-back exhaust
carbon fiber s%^t
2nd gen altezza's
GTS carbon look headlight covers
Apex-I Super AFC
Eiboch lowered
Momo pedals
Indiglo gauges
Autometer gauges/pillar pod
Front, Rear, upper and lower strut braces(neuspeed)
Clarion auto pc with navigation sytem
Clear front corners
Ported throttle bodie(55mm)
Racing stripes (one 2" one 6" side by side down the passenger side)
Custom front grill
"mitsubishi inside" sticker (my favorite)
I got lots more mods but Im tired of typing :)

Mine idles great, right around 750-800rpm just like it did when stock if not a touch lower...
If your don't tighten down the TB enough or create some type of vacuum leak during the install, yes your idle will mess up.

"Character is doing the right thing when no one is looking."
Michael J. Kulaga e-mail: Michael_97RS@2gntDSM.zzn.com
aol IM: MJKulga Website: http://highlander.dsmpower.com/

Injen CAI, 55mm TB, Hooker 4-1 Stepped Header, GS-T Muffler, AFX UDP, S-AFC, 8.5mm Magnecor Wires, SS Clutch Line, NRG Susp. Motor Mount Ins., FU/RU/RL STBs, TSW Blade 17x7.5, Bridgestone Potenza RE730 215/45ZR-17. Front KVR Cross-Drilled Rotors and Carbon Fiber Pads

To Be Installed: Rear disc brake conversion kit, SS Brake Lines, Rear KVR Cross Drilled Rotors and KVR Carbon Fiber Kevlar Pads, EGT (partially installed)

Mine idles like stock too. I dont know what it would do alone but I put it on at the same with a home ported intake manifold that had been professionally port matched to the head and TB. I dont know if tire spinning where you couldn't get it before could come from better throttle response but I definately think those together were good for as much as an intake. First time I blipped the throttle I knew this would be good and I hadn't even taken it out of neutral. Felt like the flywheel dropped 10lbs just with the ease it revved in nuetral. I spent the whole 1rst two days spinning tires in 1rst from a roll where I couldn't before. About a week later it was back to feeling as it always did. My next mode after that was turbo.


http://stan2gnt.homestead.com/home.html
Stan2gnt
Stan2va@aol.com
95 Talon 420A-Turbo
Former and future nitrous user

look back on the pages from the past two days or so, we have been talking alot about bored TB and idle issues. look for posts like " F**KING idle" and "guys who responded to F**KING idle" youll get some good info. but for the record, idle issues dont seem to bother those uf us with bored TBs. go for it!


http://my97rs.homestead.com/mywebpage.html

I refuse to tip-toe through life gently, only to arrive at death safely!

97 RS
Custom CAI
AF/X UDP
Bored TB-55mm
GS-T exhaust
"Super Good" plug wires
Front & Rear upper strut bars
Rear lower Stablizer bar
Front RRE lower Tie bar
Eibach Sportline Springs
Tokico shocks
Powerslot Rotors
S/S braided brake lines
Axxis Metal master pads
17" Focal Type 161's w/ Z-rated rubber
Stock shifter shortened 1.25in
Energy Suspension Shifter bushings
Custom shift plate(no more shift boot)
Indiglos
Grillcraft 3-pc. grill
V-Tech Taillight covers
Coming soon: AFC, EGT, A/F meter install, Pacesetter ceramic coated headers, 2.5" full exhaust pipeing

ok, I'm sold on that and a pacesetter header as my next mods.. Howell is a good place for the header, but what about the throttlebody? who does that and how much? I'd rather just have mine bored than buy a new one bored, due to cash reasons.. I live near Boston, MA and every performance shop I've called has no clue what I'm talking about. (then again maybe its me)

charger71
98 Eclipse GS
Mods:
Air Intake w/ K&N Filter
GS-T exhaust
UDP coming soon
HRC Stage 2 Kit when I win the lottery

Howell does the TB for $100

Evan
97 Eclipse GS
Stamford CT
EvMan2345@aol.com