kamakazi racing

I just got a 1998 rx-7 turbo and i have no idea what to do to it. So i was searching the web and found this site, so i thought i would ask you guys what your suggestions are on what to do to the car. The only goal i have with this car is to be able to beat a stock sti? I was thinking about upgrading the turbo to a t70 but im not sure what else i should do ex. ecu, fuel injectors and exc. Thanks for your help

kamakazi racing

opps, i meant to say 1988, not 1998.

iceblue

Not to be mean. But I think you are jumping way beyond your skill leval at the moment just slow up take your time and search on here for a few months. A T70 will cost you meany thowsends of dollors. Second will require huge amounts of modifications to the motor and including a 3mm rebuild. To do that mod right you will spend over 20 grand in your motor. If you have the cash go for it. It would be cheeper to swap a 20BTT if your only goal is to beat a STI.

First thing what is your HP goal? Other than beating a STI. How much do you have to spend? When was your last rebuild and what is your compreshion? What mods do you have now? Will you be doing the work? Do you ahve the facilitys to do these kind of mods? All things to ask and us to know to help.

dweller

Hey Kamikaze- Welcome to the forum!

As a new owner of an 88 T-2 (have owned a GTU for about 5 years) I would first off recommend lots of reading (FAQ's) and using the search function to learn about your car. You'll probably want to check & replace all hoses if needed and make sure your cooling system is working properly before starting any other mods. Getting a non-cat performance exhaust will bring you the easiest gains in power (especially if yours is still original). My full Racing Beat is supposed to add 50+ HP, but I'm still working on getting it through emissions. You can add Fuel Cut Defenser and upgraded fuel pump which will allow you to run higher boost. You can get more fresh air by replacing/modifying the stock air intake. Many people here seem to have invested in engine management systems ...something I still have to learn about. If you have enough money, you can also relocate the intercooler to a front mount.
I'm not sure exactly sure how much modding is required to be faster or quicker than a stock STI, but if you go about it smartly it'll probably have more to do with your driving skills than anything else.

Have fun and enjoy your new ride!

Impreza2RX7

Just throw a LS1 in it, should easily be able to beat an STI into the ground

pd_day

iTrader: (6)

I beat a STi when I had my pet project 87 TII.
All I did was:

stock interior
15 inch GXL wheels (10lbs lighter then TII rims) - 100/set
S5 turbo with TID - $200
2.5inch RB dp/mp to stock exhaust - FREE
680cc GSL-SE secondaries - $80
FD flywheel - $30
FCD - $4
No a/c - FREE
14psi of boost. - FREE
87 TII - $1200

Total = 1600

I had it for a summer and tracked.
When I ran the STi, it was at a road track on the back straight so I'd assume he is racing.

RETed

Click link in my .sig


-Ted

ultradef

Not to be mean, but please don't give bad advice and spout false information. A "T70" turbo does not cost "many thousands of dollars" and doesn't necessarily require a rebuilt engine. The turbo + supporting mods would cost a few grand, but not the turbo itself. It DEFINITELY does not require 3mm apex seals, and even if it did it would cost ~$4000 for the rebuild...NOT anywhere near 20 grand. NO WAY would a 20B swap be cheaper...now that would cost 20 grand or more...If his goal is to beat a stock STI that can be done, maybe even on the stock turbo as long as the race isn't from a dead stop.

Kamikazi - First, you should read the FAQ at the top of this forum. That should clear up some of the questions you have about your car. Second, you should get a compression test done on your current engine if you haven't already. Make sure its done by someone who knows rotaries (and NOT a Mazda dealer, they DON'T know rotaries). Then do a full tuneup, including oil change, new plugs, wires, adjust TPS (throttle position sensor), etc. Then you can move onto modding your car. Best bang for the buck would be a 3" TID, cone filter, full 3" turbo back exhaust along with the necessary fuel mods to go along with it, including an upgraded fuel pump (Walbro 255 works well), 720cc secondary injectors, boost controller (set to 12 psi), a FCD, and a fuel controller of some sort (S-AFC or emanage). Then take it to a dyno and have it tuned. That should get you on your way to beating an STI as long as you don't drag race (their AWD will own you)...

Mr. Gadget

I will be mean - your nuts. I would be happy to do a 3mm rebuild for you personally for 10,000 - cash of course. Why are u misleading this guy?

iceblue

Your nuts have you ever looked at the price of a greddy T70???? hmm 6grand
manifold for that turbo atleast 750$
To install it aleast 250$
new exhout for it 600$
3mm seal and rebild and install $2,800
Injectors 850$
Fule system 550$
Stand alone EMS and tuning time good 2000$
Intercooler piping 200$
silicon sleeves 100$
Intercooler 1500$
Installing intercooler 350$ at least
Drive train upgrades to hold that much HP ohh atleast 5000$
cooling upgrades 600$
Ported UIM LIM 200$
Ignition system and wires 500$

Oh wait how much is that $22,250
So WTF are you talking about ultradef thast what I thought just trolling I see

pd_day

iTrader: (6)

6 Grand for a T70 ???

http://cgi.ebay.com/ebaymotors/ws/eB...category=33742

damn, how about I'll sell you one for 1G (with wastgate and BOV!) ..... and I'll still make 250 off you....

OWN'D

Smoken'

iTrader: (1)

Hey dude, where in NC do you live?

ultradef

ok n00b. did you even read what you wrote? you said "Second will require huge amounts of modifications to the motor and including a 3mm rebuild. To do that mod right you will spend over 20 grand in your motor." last time i checked, turbos, fuel systems, intercoolers, etc are not part of the motor. as i already stated, a 3mm rebuild (which is totally unnecessary for his application) will NOT COST 20 GRAND as you stated it would.

i don't want to fight over semantics, so if you meant the engine, turbo + supporting mods would cost 20 grand (still a gross overestimate), then fine. i'll give that to you, especially if someone else is doing the work for you and you overpay by about 2x. but that was misleading to the threadstarter bc you said that the motor itself would cost 20 grand. first of all, greddy isn't the only company that makes a "T70", so how can you assume he wants a greddy t70? other companies make them for significantly less (Master Power, etc.) then you told him that he would NEED a rebuild (not necessarily true). then you told him a 20B swap would be cheaper (not even close).

now who's the troll? looks like kamikazi isn't the only one "getting in over their head"

Impreza2RX7

If you do all of the work yourself, you can spank stock STIs badly for give or take $10K. I'll make a list of what I'm doing/have done to my car after I get something to eat

iceblue

plz. I posted a good estimate to purchas real parts not ebay XS and having work done. No greddy look alike style stuff. Second There is no way in gods name you can exspecty to push a T70 on a stock motor your crazy. Do it right you have to build for it. a FMIC or sort is neccisary, So is full system exchoust ported engin and if your there a 3mm would be a wise choice for a turbo the size of a greddy T70 and the hot side on the XS T70 is more comparable to a T6.

If he just wanted to slap on a T70 that gives me the asumption someone ells will be doing the work it takes. Ps how do you exspect to bolt such a larg turbo onto the manifold??? Hmm custom manifold hmm another 800$

as was stated you could easaly beat a STi with stock turbo with correct mods. I posted on regurds of him wanting a T70. And do go through all that yes I could swap a 20B cheeper. 5 grand for a new rebuilt 20B and 2k for EMS and tuning another 500$ for fule system. Custom drive shaft 300$ guess what I just swaped a 20B alot cheeper. granted its stock and all but still done.

And now I rest.

SonicRaT

iTrader: (6)

Your prices are EXCESSIVELY HIGH.

A) you can get a FULL INTERCOOLER KIT from greddy for $800 WITH PIPING
B) A standalone runs around $900
C) 1600cc injectors are about $150-200, 680 primaries are about $120
D) BOV is around $150
E) exhaust can be done by any decent shop for under $400
F) aluminum radiator is $350
G) exhaust manifold is about $200-300 depending on who you get
H) Drivetrain upgrades to support 450rwhp? $500 for a good clutch/flywheel combo

I'm not going to bother going on.

iceblue

I am sure with your exsperiance you could pull these prices off. When I looked for 3row FMIC from greddy they wanted 1.5k The haltek was like 1.3k plus dyno time and person to tune it so I figured 2k Aluminum IC pipe with clamps 200 or so I payd 250$ for my BOV + flange + shipping. wastegate I balive 250?? When I priced custom manifold stainless steal they were ranging 600 to 1000 New RC injectors were 250$ a pice. Rad 350 as you said. Drive train I was estimating a new tranny and rear end to suport the easy 550BHP but maybe im wrong. RB exhoust 650$ And so on. But who knows I dont realy care just 2 differ outlooks on brands and quality of products to use.

Impreza2RX7

Sorry, I'll post my list of prices and sources tomorrow.. BTW, why do you need to buy piping for the Greddy kit, it already comes with it.. Why would you need a new tranny and rear? Where are you going to get a quality wastegate for 250? Why would you need a csutom manifold, just get a turbo that bolts to a T4 flange or go BNR stage IV..

Cosmo_TT

iTrader: (11)

if you would actually pay for that turbo on ebay then you are the one getting owned it is a piece of **** and would in no way be good for high horsepower numbers well not for a decent amount of time

Mx6-Rx7 Addict

Ok, i know this will turn into a flame war. There's no reason you should post this utter BS misinformation to the new comers. Maybe you don't have the "hook up" or whatever you want to call it that we have, or maybe we actually compare prices between different products. Just because "our" price list is cheaper than yours doesn't mean its going to be ebay crap. Doing a little research before you buy will save you large amounts of money in the long run. I know because i've just spent less than 10 grand on my turbo FC. That includes:

Turbo (Hybrid T04B)
Greddy FMIC
Microtech LT8S
Greddy Profec B spec II
Greddy EGT, A/F, and Water temp guages
ACT Clutch
Port work using Judge ito's templates
Racing beat downpipe/presilencer
RA Master Rebuild Kit
Mazda Apex seal springs
Greddy power extreme catback
Leather re upholstered seats ($$$$$)
Momo steering wheel and adapter
Koyo radiator
Suspension bushings
Denso 720 and 1600CC injectors
Walbro Fuel pump
SX FPR
TII CF front lip

So much more on the list that i can't even think of...

I understand you are reffering to a "T70", and the custom costs of the manifold, Wastgate, and other custom required parts will add up, but by no means you will need to spend 20 grand for that type of a setup. You might spend 20 grand, but i guarantee that you are buying coke or some other addictive expensive drug to keep you awake building the car.


So in other words, don't scare off the new people by posting crap.


-Justin

ultradef

I still don't understand why you think its necessary to use 3mm apex seals for a large turbo. And plenty of people have had much success running Garrett T70 turbos without paying for the Greddy name...and I'm not talking about ebay XS Power pieces of ****. And an $800 stainless manifold is not necessary for a street car, an HKS cast manifold will work just find and is built like a tank.

As for the 20B swap - I don't know how you can assume that he can't rebuild his own engine and bolt on a T70 turbo, but he can do a 20B swap himself? Find me any decent shop that will do a 20B swap for under 20 grand. In your original post, you did not say that it would be cheaper for you to install a 20B, you said "It would be cheeper to swap a 20BTT if your only goal is to beat a STI." Totally untrue.

I'm not trying to pick a fight with you, I just think that you mislead the thread starter by posting misinformation. He's obviously new to the rotary and doesn't know much (nothing wrong with that, we all started somewhere), so he doesn't need to be scared off with misinformation.

iceblue

Mx6-Rx7 Addict points valid. Am I wrong to asum a T70 and hte custom modifications will run neer 8grand and the added costs of the shop porting morder realy jumps that budjet up.

ultradef - "It would be cheeper to swap a 20BTT if your only goal is to beat a STI." Totally untrue. I should have left out sti and stated compared to a proper T70. Not trying to scare him just stating where the road he was looking would lead and that it would be wise to chill for a bit and gather NFO here and rethink best posible rought. The 3mm well if your into the motor and you plan on runing it hard high boost on a huge turbo why not?

kamakazi racing

OK, so after reading what you guys said im going to go get my compression check in a week or two, i have already replace the plugs and the normal maintenance stuff. Since you guys say that a stock turbo will be enough to meet my goals, ill stick with that.