93.5 tt surpa

mega shaft play on turbo's so we decided to just swap it for two hks's..but before i get to my questions i'll let u know the problem first

in the past we had thick white smoke coming out the exhaust which we knew it'd be the head gasket since supras are known for blowing there headgaskets..we started to pull the motor apart and when i took off the intake side piping of the intercooler there was oil in it..before we'd get oil in the bov also which is the result of a blown turbo seal?



we're both still learning when it comes to supra's except for the basic stuff we've added to it

-stage 3 act 6 puck clutch
-intake
-greddy intercooler/piping
-trd exhaust
-type s bov

and some other electrical stuff

but basically i'd like some help on what we'd need* to buy to make the twin turbo hks kit work..fuel rail, injectors, cams, etc

thanks

Over the last eight years or so that I've been involved with and owned my '95 MkIV Supra, just like your 93.5, I have never heard or even remotely suspected that "...which we knew it'd be the head gasket since supras are known for blowing there headgaskets..." People with moded 2JZGTE's with large turbos making way over 800hp even 1000+hp mostly use the factory stock head gasket. So IMO MkIV's do not have headgasket problems, except in very rare cases where the motor has been extremely abused and neglected and then you will likely have other major problems.


To make the HKS twin turbo system work, you'll need the specific HKS manifolds made for the twin turbos plus the two turbos plus all the related plumbing, I think it would be a big mistake to not have a full upgraded fuel system designed to support 700+whp, cams would be a good idea since IMO those turbos are relatively laggy and could use cams to get better airflow at higher rpms.

Get in touch with Horsepowerfreaks, our forum sponsor, and they'll have everything you need, turbo, fuel, cams, engine management, etc.

This is the HKS twin turbo kit for a tad under $8000:
http://www.horsepowerfreaks.com/price/Toyota/Supra_93-98/HKS/Turbos/Turbo_Kits/part/GT_Full

And pick a complete fuel system to match, probably $1500+ or thereabouts.

You'll most likely want a standalone ECU to get most of the potential out of that kit, something like AEM along with a good tune, I'd estimate about $2000+.

thats actually the turbo kit that my dad is looking to get..i've read alot on
to4r that the headgaskets were always a problem for them so they had to change out the hg..but anywaise yea he was gonna get it off WOTM cause its cheaper, about 7300 shipped or something like that..im not real good on fuel systems for toyotas yet since i focus more on my honda..any help would work..thanks for your help (nick 95 6sp)

If you haven't already definitely made up your mind to go with the HKS twin setup, look into comparable single turbo kits ...I mean comparable in terms of power and response because price of any single will be a LOT less than the HKS twin kit.

I'm sure you'll find via a little searching around that "most" Supra people think the HKS twins look real nice, but offer no performance advantage and in fact, you can get a good single kit to spool up just as fast and make just as much power for a lot less money; or go with a larger single and make significantly more power. To me it's more about the HKS twins being relatively laggy, not so much the power issue since they make more power than I wanted anyway.

The stock MkIV TT fuel system is pretty much max'ed out on fuel flow as you get to 500rwhp or slightly more. So almost any aftermarket turbo system will need more fuel than the stock fuel system can deliver. Complete fuel systems are available from Horsepowerfreaks or any of the major Supra parts vendors of your choice. Just tell them what turbo setup you will run and that will dictate the amount of fuel needed, injector size, fuel pumps, etc.

makes sense..i think he's looking for something he can just drive around in to work etc also..and thats why he was thinking twin turbo..if it was me i'd get the t88 =)..i'll just research turbo's more and find out which is good..what do you recommend as a "daily driver" going the cheapest way?

Na

the less complicated and less power/stress the more reliable for daily driving ...so "Na" by supramacist is probably about right ...BUT if you got turbos, who the hell wants NA!!! which anyway rhymes with "pay to play"; also I like the "cheap, fast, reliable - pick any two" motto which has a lot of truth to it.

what's good for daily driver is a very personal decision. There are guys running HKS twins as daily driver cars, also T88 and it's variations, and even larger turbos; a very popular turbo now adays for daily driver 2JZGTE's are the 67mm turbos, pretty good response on the street but still capable of over 700hp. My ~61mm turbo is smaller than that, but I really want very fast response on the street and I also roadrace my car where I want near instant throttle response coming out of corners. I also drive mine to work frequently, as often as weather allows, about a 45min drive each way when I do ...perfectly reliable never misses a beat and never has missed a beat ahhh, the beauty of the Supra :)

yea i tried to tell my dad to get a single but he said he wants a twin..he says since the car came with twin..he wants twin haha..yea i'll research on turbo's more..

another problem..

the intercooler has oil in it from the broken turbo seals..is there something we can do to clean it or would we have to buy a new one?

I'm sure you can clean it out; I would use dishwashing detergent and plenty of water, flush it as aggressively as you can, do it a few times, then make sure you drain it and let it all dry.

show Ken's HKS twin Supra to your dad to give him some good ideas ;) http://www.sp-power.com/projectcar/projectcarinfo.php?id=44

While you're there, check out the other Supras too http://www.sp-power.com/main/index.php

those supra's are krazy!..so nice..how hard is it to take the head/motor out?..right we have about everything unplugged..we really wana just take out the turbo's/manifold but cant get to the bottom nuts of the manifold..so we'll just take out the motor or the head..just to replace the gasket and turbo's for sure

Some basic info on removing the stock turbos:
http://www.mkiv.com/manual/manualtt/twin_turbo_replacement/index.html

There are also other well written how-to's on removing the stock turbo stuff, but I couldn't find the links right now.

hmm imma have to find more link or how to's..cause i cant see the one u gave me..too small writings/pictures thanks !

hmm imma have to find more link or how to's..cause i cant see the one u gave me..too small writings/pictures thanks !


click on any page and it will open in a separate window; then when you move your cursor to the low right corner, click on the small orange square with the arrows that will pop up ...then the page will open full size and you can see anything you need.

oh haha..thanks..i cant even zoom on a page and im working on a supra..=/

to do all that removing..do we need to have the motor out? we've done all but take the manifold off..cause the bolts connecting the manifold to the head are impossible to take off while its on..

you don't need to take the motor out, most people don't. But if you have a lift and have done it before, some say it's just easier if the motor is out. When we took off all my stock turbo stuff, we just did it "normally" with the motor in place, but the guy who helped me ...hell, he did most of the work!!!... had done it a few times before and it went smoothly in about 4 or 5 hours without rushing.

i have never even worked on a supra motor before..so im learning as i go along also..and i hope this is the last supra motor i touch cause its so hard for me..i'll just drop my 1.6 civic liter in it =) jk hehe..i'll see what i can do =/

is there a place we could get a SP 73 and the price on that?

dad just asked me about it and wanted me to get more info..
thanks

SP = Sound Performance, near Chicago ...one of the bad ass-est Supra tuners in the U.S. ...heck, in the world.

Larry is the big mahoff/owner; Chris is one of the knowledgeable guys too.

Sound Performance
www.sound-performance.com
Email Address: XXSUPRAXX@AOL.COM
630-893-5002

I know they have 71, 72, 74, 76 ...I just don't recall a 73. Could you go up or down one? ;)

Of course Chris here on this forum is Mr. HPF himself, check out their Supra stuff: http://www.horsepowerfreaks.com/

I got a bunch of good stuff from Chris @ HPF, but my turbo is from Powerhouse Racing and I still have a soft spot for them too: http://powerhouseracing.com/

I got some stuff from Dusty too, he owns MVP, another good source for Supra stuff: http://www.mvpmotorsports.com/

another question...are the supra's headlights made for hid's or are they just regular projectors? cause we're gonna need new headlights too cause the brakets broke and i was thinking about taking it apart and trying to retrofit it in my headlights to run hid's

my dad was asking " does the sp74 have alot of lag?" would it be good as a daily?

i think he was talk'n about this guy's sp73

http://to4r.com/member.php?show=marcus.frost

my dad was asking " does the sp74 have alot of lag?"...In general, yes (depending on your perspective), assuming you don't spool it up with nos. To give you a very rough idea, I'd guesstimate it's about double the lag of the oem twins in TTC.
...would it be good as a daily?In general, probably not, depending on how you drive. If you're willing to downshift a couple of gears every time you want boost (6spd), then it may not be too big of an issue. Also, if your dad wants to keep you out of boost in most regular-driving situations, a 74mm+ turbo might accomplish that quite nicely. ;)

ahhh, so there is an SP73 ...so many varieties I don't even try to keep track anymore.

About lag, as Phil aka pwpanas said (btw, he's an extremely knowledgeable Supra guy) it's a personal preference kind of thing. I hate large turbos and to me that one is almost huge. But if your main interest is drag racing or just hammering it for a straight line highway pull, big turbos are nice. If you want throttle response like for road racing type fun, IMO they suck and are totally inappropriate.

As for HID's, the OEM Supra headlights are not HID's and they are not specifically made for HID's, but there are some nice HID conversion kits and as usual from what I've seen, the good ones are very nice, the cheap ones are more trouble than they're worth.

i think he wants to reach pretty high horses, stay street legal, and can use it as a daily driver..spool quick and power..