Got My 3" exhaust!!!, Wow Options

[gtfc115]

So I finally got my exhaust done. It's such a HUGE difference...I had no idea. my old exhaust had so many leaks, was crush bent, and was only 2 inches...if that. now it sounds so much better, not too loud and has a great low growl to it. Im boosting ~13psi now. kinda scary at times.

now my mods list includes: (92 JDM Mr2)
MBC (@13psi)
Walbro 255lph
ACT Stage 2 clutch w/ fidanza flywheel
Full 3" exhaust!!!

Also, Im pretty sure I hit fuel cut a few times, but i have the vac hose plugged going from the turbo to the t-vsv so I shouldnt have fuel cut should I? maybe im misunderstanding something about how it works. i have an hks FCD but its not installed because since my harness had been re-wired twice, i cant tell which wire i need to splice...is there a link to the pinouts for the 92 jdm mr2 ecu somewhere?

comments? suggestions for my next mod? i'll have a chance to get it dyno tuned at a place in Columbus in the next few weeks. any idea how much power i should have at the wheels with these mods?

[Rjb23]

That doesn't effect fuel cut. Your fuel cut is still at 12psi you have to raise your fuel cut to change it.

[lagos]

take the vac line that goes to the map sensor (turbo presure sensor), disconnect and cap oof the 2 ends. you will have no fuel cut. just keep an eye on your boost gauge.

3in exhaust is a must for any turbo car. i love mine.
what muffler did you go with for your exhaust?

This post has been edited by lagos: May 20, 2006 - 11:01 AM

[gtfc115]

i stuck with the same Ractive muffler that i already had because it always had the best sound out of most others that ive heard.

i'll probably just turn the boost back down a little till i can get it tuned. there arent many dyno's around here so i'll make due with 11 or 12 psi...plenty.

[burneeed]

do you have a downpipe comming fromt he turbo or is that first cat still there?

[gtfc115]

do you have a downpipe comming fromt he turbo or is that first cat still there?

oh, yeah that first cat is still there...so i guess its not a FULL 3". What downpipes are you guys using?

[lagos]

if you have your old muffler.....isint the muffler smaller then 3in causing a bottole neck?

get a full 3in magnaflow. i love mine and since i got it done, everyone always says how great the car sounds!

[burneeed]

Magnaflow or Top speed FTW!

[gtfc115]

if you have your old muffler.....isint the muffler smaller then 3in causing a bottole neck?

get a full 3in magnaflow. i love mine and since i got it done, everyone always says how great the car sounds!

yeah its probably a minor bottleneck..the inlet isnt quite 3" but its still bigger than the rest of my old exhaust. i'll look into the magnaflow.

[trd94]

i stuck with the same Ractive muffler that i already had because it always had the best sound out of most others that ive heard.

i'll probably just turn the boost back down a little till i can get it tuned. there arent many dyno's around here so i'll make due with 11 or 12 psi...plenty.

hey man i did not know there was another turbo celica in the north west ohio area that is awesome , if your looking for dynos there are two in the norwalk area crt performance, and bushurs racing, i am heading to bushurs in a few weeks or so if you want i will let you know how it goes

[gtfc115]

hey man i did not know there was another turbo celica in the north west ohio area that is awesome , if your looking for dynos there are two in the norwalk area crt performance, and bushurs racing, i am heading to bushurs in a few weeks or so if you want i will let you know how it goes

yeah there are a couple 3s swaps here in toledo...mine and another in a 5th gen. let me know how you do on the dyno. i was gona turbo my 7a before i did the swap, but never went through with it. i'd like to see what kinda numbers i coulda have put down.

[trd94]

hey man i did not know there was another turbo celica in the north west ohio area that is awesome , if your looking for dynos there are two in the norwalk area crt performance, and bushurs racing, i am heading to bushurs in a few weeks or so if you want i will let you know how it goes

yeah there are a couple 3s swaps here in toledo...mine and another in a 5th gen. let me know how you do on the dyno. i was gona turbo my 7a before i did the swap, but never went through with it. i'd like to see what kinda numbers i coulda have put down.

i will let you know, who did your swap for you anyone in the area , thinking about swapping in the future

[gtfc115]

hey man i did not know there was another turbo celica in the north west ohio area that is awesome , if your looking for dynos there are two in the norwalk area crt performance, and bushurs racing, i am heading to bushurs in a few weeks or so if you want i will let you know how it goes

yeah there are a couple 3s swaps here in toledo...mine and another in a 5th gen. let me know how you do on the dyno. i was gona turbo my 7a before i did the swap, but never went through with it. i'd like to see what kinda numbers i coulda have put down.

i will let you know, who did your swap for you anyone in the area , thinking about swapping in the future

most of it was done by a small non-tuner auto repair shop...the had no experience with it, but stuck with it and did a good job IMO. some of the work was also done at a place called Gearheadz...overpriced to say the least.

anyways, if/when you're ready to do the swap, they're in Perrysburg called Express Auto. Great guys, and now they have experience with the swap after troubleshooting mine for 2 years

[trd94]

hey man i did not know there was another turbo celica in the north west ohio area that is awesome , if your looking for dynos there are two in the norwalk area crt performance, and bushurs racing, i am heading to bushurs in a few weeks or so if you want i will let you know how it goes

yeah there are a couple 3s swaps here in toledo...mine and another in a 5th gen. let me know how you do on the dyno. i was gona turbo my 7a before i did the swap, but never went through with it. i'd like to see what kinda numbers i coulda have put down.

i will let you know, who did your swap for you anyone in the area , thinking about swapping in the future

most of it was done by a small non-tuner auto repair shop...the had no experience with it, but stuck with it and did a good job IMO. some of the work was also done at a place called Gearheadz...overpriced to say the least.

anyways, if/when you're ready to do the swap, they're in Perrysburg called Express Auto. Great guys, and now they have experience with the swap after troubleshooting mine for 2 years

awesome !! thanks for the info

[94wrc]

I take it that none of you guys that have done the 3s-GTE swap suffer from boost creep with the 3" exhausts? in the UK if we use the standard ct20 on a 3" system we normally get boost creep, it might be down to us having 99 ron fuel. It happened to me the other day and went up to 21.4 PSI then I hit fuel cut and spat a big flame out of the back I think the 2 solutions to this problem is either to fit an external wastegate or a restrictor plate in the exhaust to increase backpressure slightly so the wastegate can work better.

Nathan