25lb Turbo "How Much HP Gain?"
 

I found a promising turbo, wastegate and oil line kit- http://cgi.ebay.com/ebaymotors/Parts...1%7C240%3A1318

I was wondering that if a stock 87 supra without a turbo has 202hp with a straight 6 cyl 3.0L how much of a power increase would I see if the turbo was tuned properly. Keep in mind I would be upgrading the header gasket and whatever else would need to be upgraded/tuned to get this to work. I will also be getting a blow off valve.

I want to know this to see if its really worth it.:yes:

Don't go for all that mumbo jumbo, just get one of these: http://cgi.ebay.com/Intake-Fuel-Save...3A1%7C294%3A50

There is no way in hell stock internals or head bolts will hold with 25lbs of boost..

like brian said, overkill is not needed..

why not just get a different car?

The money you will have to spend on that car and motor to handle 25lbs of boost is not worth it. Whenever changing that much in an engine you also need to have it properly set up and tuned, which costs money.

Not too mention, that kit you linked is garbage and a joke, kind of like the fuel additives that add xxx horsepower and get you 50 mpg.

:lol: Brian........

Very very basic rule of thumb is the amt of air you increase over atmospheric press is how much % you gain.
EG. Air press @ sea level~=14.7psi=1 atm
6 psi boost:
6/14.7= .4=40% so if you have 200 hp... 200*1.4=280hp
25psi boost is like tripling the power. but... there is no way a stock engine will do that. Nor will a sh1tty $200 turbo. Turbos are very expensive.

You are best off just getting a low psi turbo or supercharger (6-8psi) for a good but modest % increase, or just do simple NA things. Either way tho is mad money. Prepare for thousands. A simple bolt-on centrifugal supercharger w/o intercooler is still several grand.

There is a reason I do RC and not full size cars. the $$ scales with the size :)

Pretty much what everyone else said. Are you now buying a non turbo supra? They have a different engine than a turbo supra and will not respond to mods well...

Plus you would have to fab all kinds of plumbing to make a turbo work. I have a feeling the turbo is the cheapest part. And that tubo you liked to is a wet flot bearing type, so it will not last as long as a ball bearing supported turbo. Plus you really want to find one with a 360 deg bearing, not the 270 deg type.

I run up to 45 lbs of boost - but my engine alone weighs more than that little ricer.

My tip would be to get yourself onto a supra forum, sit back and read for a while. Figure out what guys are doing that works, and what doesnt.

Or you could just post..."what batteries do I need to make my Traxxas Supra faster..." :party:

+1

Price increases exponentially for sure.

I will take a look into a 8lb for sure if thats what I need.

Certain vehicles can be modded inexpensively. I have an 02 lightning, and I can get around 500-520 whp with about 2-2.5k worth of mods. Mainly getting the blower ported, and upping the bost 6psi (to 16). The fuel system can support that, as can the tranny. Some long traction bars and drag radials are about all I will need in the suspension dept, maybe some drag shocks too. Should be good for mid 12sec runs, which will eat most things on the street. Pick your car wisely, as some have lots of potential, while others are maxed out...

I still laugh when I read import tuner and they put on 2k worth of goodies and get 3.5hp... Taking out the back seat and spare tire would about equal that, or telling the fat gf that she has to stay home while you race.

You lucky SOB!!! My friends are into Mustangs, I have always said I would rather have a Lightening.everyone knows the saying "Mostangs are like a$$holes, everyone has one" but not everyone has a lightening, or a truck that will run with a stang or camaro. I like trucks better than cars too so it's a better choice for me, maybe someday I'll get me one!

I thought he was talking about a F150 lighting.:neutral:

He is talking about a f150 thats why erevo said a truck is better ;-)

That stright 6 is a power house, but takes a bit of work to get anything out of, espicaly at that age, no matter the miles on the car, the stock headgasket on a non turbo motor is not meant to take boost in any form. If you can find a late model 2JZ-GTE motor from a 94 or 95 supra its the best bet, but as alll have said its a lot of money and a lot of work.

The conversions I read about putting the 2JZ in a 87-92 Supra ended up costing 12k plus and were very complicated. A lot of chassis work and cutting has to be done to fit the motor in correctly as it is by no means a drop in.

absolutely not drop in like i said its a lot of work, toyota changed the motor completly in the 93 car, its a better bet to just find a different car, or live with an NA supra.

Pretty much everyone is right. For one, that turbo is garbage. You don't necessarily need a ball bearing turbo, but definitely something that isn't made in China. I'd get something like a Garrett, Turbonetics, etc. Hell, a decent turbo to replace the one on my Camaro would cost upwards of 2 grand just for the turbo.

Glad to see you post once in awhile on here squee.:yes: I am now rethinking this all and I might just go for a full flowmaster exaust setup, cold air intake and to run some engine cleaner threw it. Cheap horsepower.

Yea, my cars been taking alot of the $$ so no money for RC and not to mention my time working on it and such.

Heres a picture of my baby. :mdr:

http://i41.tinypic.com/29y06tt.jpg

Very nice cama man!

One thing I have not seen mentioned about the cheapy ebay turbo is that it is a T3. There is now way a T3 can flow 25 PSI. They cap out efficiency about 19psi and optimally at 15psi, anything past that is lost to heat and creates extra wear. You can do a T3/T4 hybrid, t3 on the inlet side and t4 on the compressor side, this allows the quicker spool up of the smaller turbo with more volume of a larger compressor side. It will not push 25, but will hold 19-21 with out issue.

to run 25 psi besides all the additional mods that have been mentioned you would want to look at T4 60 trim turbos minimal.

Get a diesel. Run high boost in that :mdr:

Very good point Dicky. Not many people like to discuss the efficiency points of the turbo - doesnt make for very good bragging rights. I stated that mine will hit 45lbs. But its efficiency starts dropping at about 34-36.

Damn diesel turbo's.... :lol: Completely different animal compared to the tiny peashooters that people put on 4 bangers! Yes even a 60 trim T04 is a tiny peashooter compared to a diesel.

I put a turbo from a cummin's TD on my rx-7 when I had it just to play around. It was 8k rpm before it spooled and 12k before I hit full boost. A 200 shot spooled it quicker though :) It was just for play, I shortly returned to the single t60 with a 100 shot to spool it fast.