hey all,
been reading alot and doing alot of research as i plan to turbo my lancer "ra"

anyways ive sorta came up with an idea and just want to collect some relevant information.

i know alot of you Evo drivers use your car as a daily driver

1) i want to know how often people boost per day

2) how well does the evo(and/or any other turbo car) run with out boost - ie. only vaccuum - (like i know it wont be fantastic, but is it acceptable for DD?)

ummmm.... i dont know what else there is to ask atm, soo yeah, just those will help for the moment.

thanks in advance
-Steven

 

The 4363 (evo motor) is built for turbo and the whole setup has been engineered to survive daily driving so comparing an aftermarket turbo setup on your RA will most likley have completly differnt parameters. i used to have an Acura Integra that was turboed. It had lots of probelms, needed to always be tuned but was fun to drive. Good luck not boosting. Also evos come stock boosting 19 PSI, it doubt your RA will close in on that number unless you sleeve the bottom end or get a dart block or something.

 

nah, my idea is not related to my car, just boosted cars in general and trying to save fuel consumption on the daily drive

ok so this is my idea, just a rough diagram so dont laugh at the ratio and non straightness

so basically there will be a alternate route for inducted air to travel off boost conditions, instead of traveling through the restricted non spooled turbo and intercooler and intercooler pipes, it will ge straight from the filter like a SRI.
hopefully this will be more efficient than using the vaccum thru there and have like a valve or spring of some sort so when boost is being created the gate/valve changes and uses the boost
or it may be even be done via an incabin switch at the drivers discresion...

anyways, just peoples thoughts would be nice

 

Well, it wouldn't work. The problem you would have is the turbo would still spool and the compressed air would have to have somewhere to go. Putting a valve in place to stop the flow would put alot of strain on the turbo and all that backed up pressure would be sure to blow something. Just not possible with a turbo vehicle.
Now a supercharged vehicle would be a different story. Having a clutch type pulley, kinda like an air conditioning compressor, to be able to switch on and off and a seperate fuel map for when you turn it off. That could work.

 

Yeah, unfortunately that won't work. Not only will you have serious strains on your turbo and the rest of the system, that could get really heavy and crowded in the engine bay to have 2 alternate flow paths for the air.

Plus, your tune would have to be switchable on the fly since the turbo application would require a lot more fuel. I have a feeling you'd end up running really rich when in daily driving and/or blow up the engine when you boosted.

Good idea, but I think the application would be nearly impossible.

 

I think the only possible way to make it work would be to re-direct the exhaust from the turbo. But that would also make for a crowded engine bay.

 

Do you mean 4G63??? If you had problems with your turbo integra there was probally something done wrong. One of my friends has a 98 Integra GSR with a 57-trim on it on 9psi it made 302whp and this is a conservitive tune. Hes drivin it for 25000 miles, thats twenty-five thousand. NO problems at all, except for some broken axles. This is his daily driver, and he runs the living crap out of it.

 

ok the valve wouldnt be closed all the time from the turbo, like it would open as soon as boost would be created, maybe actuated by a type of wastegate style, like if u stayed under say 3000rpm and no boost is made the valve would stay shut and u would be SRI type style, but foot down boost opens the compressed side and shuts the SRI side for leaks...

think of it like mivec switchover, u are not always in mivec but when u pass a certain point u are in mivec and it changes over.
same principle applies, under boost/vaccum the compressed side stays closed and have a SRI style, start makeing boost and open