I was just wondering if it would be feasible to put twin turbos on a 2.3T? I don't know much about turbos yet myself, but i am learning, and trying to plan what i want to do with my 94 Ranger. Thanks for the time.

I don't think the response would be great, then again anything is possible. keep the turbos small as possible. yea, it might work. I would do a single IMO Hope I could help

i'm not saying that i'm going to try to do twin turbos. was just wondering if it was feasable and what kind of power gains could be expected. i wasn't sure if 2 small turbos would be better than 1 big one for the power. wouldn't that have a quicker spool up time then, or would the exhaust being splitted not let the turbos spull up fast enough? there's not really any vehicles around here like i want to do, so i have to come here for help on it, and ideas. i just wanna use my ranger to smoke all those little ricers at the track and on the streets!!!

well, the idea it may decrease the "turbo lag" but i dont know if the 2.3 puts out enough exhaust gases to turn 2 effectively.. ive only heard of twin turbos on engines with 2 banks(i.e. v6,v8, or in the case of the porshe 911 twin turbo, the horizontal 6)... this way there is a small turbo on each bank... another thing you have to think about is $$$... it would take a custom header just to mount them, plus i dont know if there is room for 2 turbos on one side... but hey, if someone has money and patience and proves it works, i give em props!:beer:

if i design the header myself, i can get it welded up pretty cheap at a local muffler shop that i've dealt with a lot. i'm already planning on getting rid of all my A/C stuff under the hood, and if i have to, i will get a diff radiator reservoir and get rid of the washer fluid tank. that should clear me up some room. i can get the turbos pretty cheap at a local u-pull-it yard so that's not a problem either. i'm about to put an engine in my cutlass, so that will be my work vehicle and family vehicle, which allows me to have my ranger down as long as it needs to get everything working. i'm not afraid to cut out a fender well or whatever it takes. i will make more room. :) plus side of that is it will make it a little lighter.

well i guess it can be done.. i have found a couple of things... one site had this...

I just wanted to comment on the Dodge Turbo Interceptor that is mentioned on the Pace Car page. It seems that little is known about this car. I did read in a book just a couple of hours ago that the car that is being called the Turbo Interceptor by me and everyone else was actually called a Dodge M4S at the 1986 Chicago Car Show. In that book it mentions the 440 horsepower figure.

Even more interesting than 440 hp from a 4-cylinder might be that on the opposing leaf of the book I was reading, there is a car that is reported to have a 600 hp twin turbo 4-cylinder!

another had this

This is a 1995 Mazda RX7 coup. This car is equipped with a Wankel Rotary twin turbo 4 cylinder engine which produces 239 hp and 216 lbs of torque. It can reach 60 in 5.2 seconds and has a top speed of 155 mph.

also i have found a lot of twin turbo'd inline 6's... as in the supra...

if you have the resources and the time and patience, i say go for it... you may find a way to unlock even more power from a 2.3l...

"This is a 1995 Mazda RX7 coup. This car is equipped with a Wankel Rotary twin turbo 4 cylinder engine which produces 239 hp and 216 lbs of torque. It can reach 60 in 5.2 seconds and has a top speed of 155 mph.

239hp doesn't sound that high to me for twin turbo. i'm not an expert, and will hopefully get an expert opinion on it. now that i know it's feasible, just need to figure out if it will make enough of a difference to be worth doing. i like doing things that are original, but only if it's something that will be functional at the same time. no point doing it if it doesn't help gain more power to beat the ricers with...

well, if it came from the factory like that it probly doesnt have very much boost... also being an import it could be as small as a 1.5l....

Short answer: yeah, it can be done, but it's Waaaaay past the point of diminishing returns. A single will more than satisfy power requirements.

Long answer: Paralell twin turbos are popular on V engines because they avoid the crossover pipe needed to run the exhaust from the far side of the engine to the single turbo, but the "Big Dogs" running the 1200 hp Drag Mustangs are still running single because to them the crossover pipe is worth it. Paralell twins on a 2.3 would involve using (very) small turbines if you want to spool them at all (remember, they'd only be seeing 2 cylinders worth of exhaust) which is going to limit the size of compressor wheel you can run, therefore limiting the boost capability. You could run two turbos in series like the stock Supra setup, but most of those guys go to a single eventually to get the power they're looking for.

If you're looking for more information, pick up Hugh McInnes' book Turbochargers. It's got a whole chapter on turbos set up in series, and it includes all of the formulas proper sizing and all that.

Thank you for the info Rascal King, that's what i wanted to know. If it's not worth doing, i don't think i want to do it. i'm not trying to do it just to do it, i want to get as much power as i can without spending 10k+ to do it. yeah i know, it sounds kind of cheap, but i can't afford that much. about all i could spend building an engine is approx 3-4k, and that's not including the price of the engine. for that amount of money, what do you think would be the best things to do to it for the max power? thanx for the help.

I think you're going to be best off with a stock rebuild, for the most part. I'd put Crower rods in it, and use the stock (forged) pistons unless it needs boring. If you really want to go all out, the Esslinger aluminum head setup is about $3500...

On the other hand, what you really need to do is ask the guys at TurboFord.org ...I've put one engine together (using all stock parts) and there are guys there who've done dozens.

another question. what kind of boost can the engine handle if i do a full rebuild with new rings and everything. i also want to port and polish the head along with oversized valves. i planned on using a copper head gasket to help out. what things can i do to the engine to make it handle more boost? lower compression pistons? i'm thinking about putting a NOS setup on it. what would i have to do to make it handle the NOS? thanx for the help anybody who answers.

The level of boost you can run is limited only by detonation, really. As long as you can avoid that, you can go as high as 30+ lbs. But after about 20 lbs, you're more than likely going to need a real serious intercooler or some other mechanism for cooling the intake charge (water/alcohol injection), again to stave off detonation.

One of the most successful combinations using the 2.3T that I'm aware of is Joe Morgan's Pinto, which you can read about on www.mofocus.com He ran 10.71 on basically a stock engine, Ranger roller cam, 150 shot of NOS. Between that and the FAQ at www.turboford.org you ought to find enough to get you started.

thanx for the help. i saw a plymouth sundance at the track with a 2.5turbo that ran a 13.2 in the quarter. he said all he did was put in the turbo engine, port the head a little bit and hook up an intercooler. said he runs 25psi on racing fuel and 17's on the street with normal gas. i wanna be able to beat him with my ranger on a regular basis without NOS. I just want the NOS in case i wanna race somebody faster than him. Do you think this will be a posibility without spending 10k or more?

actually the rx-7 has a 13b 2 rotor rotary motor.

displacment is 1.3 liters, horsepower is 255hp

the car weighs nothing so it doesnt need too much.....

as for it being a 4 cylinder.....well actually it has no cylinders and by virtue of being a rotary it is more akin to a 6 cylinder....dont ask me how:) i just read it in scc and the dude took two paged to get to that decision!

just a bit of tech fo ya!

laterz buds

sorry, i guess i'm an idiot because i don't know what the heck a rotary engine is. could somebody please explain this? thanx.

Head over to www.howstuffworks.com (http://www.howstuffworks.com), they've got a good writeup on the rotary. They've got lots of other good technical explanations on automotive subjects, too...for the curious.

Originally posted by BucketMD
sorry, i guess i'm an idiot because i don't know what the heck a rotary engine is. could somebody please explain this? thanx.

...not stupid man! only stupid thing is a question not asked!

to be sure i am not sure EXACTLY how they work! wobbles around and basically kicks A%!....no valve-train!


laterz