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Yes I did! I'll correct it Gary. Thanks! Nightshift does it to all of us. I think 3 of the cars are only worth the price of a decent SVX. I be the poor man now and can't afford a WRX (I don't want one anyways). :-p

I just thought about this and was like *WOW*. 120hp with just an intercooler and Wolf3d. I have an EA82T and was only able to put down 75hp. All dyno's aren't the same I know. I was just searching the archives and re-read this post. Don't mind me!

Oh no! I can't find anything comparable to the ones I got in the 175 range though. I'm looking at the Kumho Power Star 758s but I don't have any stat information on them. Better look quick since I already ordered the other tires. Update: Got the order corrected to get the $27.00 Kumho Power Star 758s in the 185/70R13 size.. The Firestones were $45.00 a piece so I saved a few bucks. The few reviews I read seemed positive so those are the ones I'm going with. Thanks guys!

Thanks Qman! I thought I read this somewhere before. It was the only way I could get the car home at the time since one of the rims were bent so much, it was undrivable. I had 4 rims/tires in the 13" size but one had a flat/slow leak. So I had to use 2 and 2. That's why I'm taking care of this ASAP.

Ah, nevermind. I was just searching the Tirerack in the 175/70SR13 range and decided on some tires to purchase. The Firestone Firehawk Indy 500 has an excellent rating all around and seems like the perfect tire. Kumho has a $25 tire but no rating. So Firehawk Indy 500 it is. Thanks! Sorry I'm not more patient.

You may get this question asked a million times but I couldn't find anything specific for my car. So I'm asking. I probably overlooked many post though. I need to know what is the max tire width I can put on a stock 1988 RX turbo rim? I now have a set of 185/70HR13 on the rear and 175/70R13s on the front wheel. The front wheels are what I'm keeping on the car. I want to put tires on these rims that will have no issues whatsoever (tire rubbing, etc). Can anyone recommend a good tire size to go with these rims. I'll be ordering within the next hour. Thanks!

Where would you put a cat converter on that setup? What kind/size would fit?

Looks great! Damn it where are my TWE parts? I'll give it a couple more weeks before calling (if I can wait). Will you be getting any dyno runs Will anytime soon?

Nice pics! Thanks for posting them up.

NICE!!!!! Congrats Will! Find someone around you to get some video footage as well. That would be really cool!

You have a good point! I'm not even thinking about going to the dragstrip until I put some better numbers down on the dyno. The dyno doesn't tell everything but it says a lot about what you can expect of your car. I'm looking forward to sharing my progress with the rest of you folks as I'm sure there are others that feel the same.

Good points on the air filter location. I am looking into getting some temp probes as well. Skip, I'll be PMing you about this sometime tonight. This is very important for me to know as well as EGTs. Everything I do at this point on will have a lot to do with EGTs and intake temps. I do not want my intake temps to be anything over stock with future mods. In the meantime, don't forget that on the dyno, the hood is raised and there are two big fans blowing air into the engine bay. Favorable conditions. However, I have a solution (or at least something that could help) with the suggestion you had. I'll be putting on my WRX hood scoop bonnet onto the RX from my Outback Sport. Pics will follow sometime tomorrow. Thanks guys! Great help!

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I just got finished looking at some old dyno graphs of WJM and Pleiades. WJM: http://www.geocities.com/wmaham1701/dynoday/pull4_0.JPG Pleiades: http://www.subaruworld.net/dyno/dyno.html I'm not comparing dyno to dyno because they are different. However, does anyone have an explanation as to the dramatic torque drop just past 5500? It almost seems like fuel is cut or something. I've never seen anything like this before. I know there have been discussion on fuel cut running 13psi+ boost on 87+ year (?) EA82-T's. Is there any discussion on why the power drop off takes place at 5500 so dramatically? I'll keep searching. I know the cams play a part in this but we have a 6500rpm redline. Strange! I'll keep searching. As a reference, here's what happened on the very first dyno run I did. After this particular run, I just shut down between 5500-6000rpm instead of trying to reach the 6500rpm redline.

Hello Gary, I'm thinking typical AWD/FWD drivetrain loss is between 25% - 33%. In this case it's drivetrain loss is 31% There isn't anyway to plot EGT on the dyno however I plan on getting an EGT gauge as one of my first things to do. Everything I do there after would be to try and keep th EGT below what the stock EGT is so as to keep he car running safe. If temps go over, then I know the EGTs are going to high. In this case, I believe the air/fuel ratio is too lean with the open element air filter. It could've easily been tested but I didn't have the stock air filter box with me. At this point, I'd like to get an adjustable fuel pressure regulator to richen things up across the board (Like keeping the a/f ratio around 12.0:1) or so. I'm thinking the a/f ratio got too lean and the car is cutting timing. On run #1, the rpm gauge actually stopped moving just past 6000rpm even though I was still mashing the gas pedal. Not cool! Subarutex,Where I go at, it only costs $50.00. It's $40 for 3 runs on the weekend since those are 'dyno days' and tons of people come out. I go by during the week where I can just drive up just about anytime and get as many dyno runs as I want. It's a gold mine of a place until it gets more popular. I encourage any of the Subbie folks in the Delaware/New Jersey/Pennsylvania/Maryland area to stop by.

*Special Note* I do have an open element air filter on the intake side. Maybe I should've did an absolutely, 100% stock run but this is what's already on it. I apologize for not mentioning this earlier. This air filter is what may be causing the lean running condition post 5500rpm. At any rate, above 5500rpm sucks. Shift early! :-p Also, sorry I didn't take any pics or make any movies at the dyno shop. They'll be other times. I forgot my camera.

Car: 1988 RX Turbo 4WD (Manual) Place: Xotic Motorsports Just got back from getting some baseline runs on the RX turbo before doing some mods to it. Xotic Motorsports has an AWD dyno so that helped. All dyno runs were (and will be) done in 3rd gear from here on out. There may be some arguments about this but 3rd gear pulls seem to be less straining on my tranny and it goes by quicker. I don't want to pull long dyno runs and have to wait a long time for the car to cool down. Time is $$$ and lately my $$$ have been dwindling. This is still a representation of what the car is putting down to the wheels. It's still good for comparison as mods are done to the car. I let the car cool down until the intake manifold was around 87 degrees on all the runs. Temps where taken with a laser temp probe/light beam the shop has. They aim it at the intake manifold and move it around to get temps. Gas was 93 octane. I did two runs back to back, let the car cool down again and did two more runs. This first dyno plot is with all 4 of the dyno runs that were done. Pics have been made smaller so non-cable modem readers can enjoy them. It may be a little difficult to view though. For the hard of seeing/reading, it's 74.04hp, 79.34hp, 79.24hp and 78.57hp. I should've posted these numbers like this originally. Sorry! This dyno plot is the baseline plot I'll be using as a comparison to future mods. It is run #2. Runs 2, 3 and 4 where all pretty much the same. #2 seemed to be in the middle. From here on out, I'll post a hp dyno plot then a torque plot so the lines don't look as confusing running together. This is 79.24hp. It's what I'll use for a baseline for now on. Here is the torque graph of run #2 that will be used as a baseline from here on out. This is 95.19lb-ft of torque. This is what I'll be using for a baseline for now on. All questions, comments and insults are welcome (Well, maybe not the insults).

*Post raises from the dead* I didn't do this on purpose. The car just ran this way while on the dyno. I actually would like to have my air/fuel ratio in the 13.0 - 13.5 range. Seems to make the most power this way. I don't have an adjustable fuel pressure regulator on this XT6 though. I ran into this thread looking for old dyno information about the RX and RX turbo and I hate leaving unanswered questions. Sorry if I seemed like I ignored you.

*Post raises from the dead* I hate leaving unanswered questions and I didn't answer yours so...... I found this looking or old dyno information specifically for the RX and RX turbo. Anyways, I didn't keep it close to stoich on purpose. It was simply how the car ran when it was being tested. I'd like for the air/fuel ratio to be at 13.0 - 13.5's. It seems it makes the most power in the 13.0 - 13.5 range. I don't have a fuel pressure regulator on this XT6 though.

This is an interesting read. Do you know what year/model VW 1.8T you took the intercooler off of (or just what VW it came off of)? 100F is a very, VERY significant drop in intake temperature.

Well, I've purchased a copper headgasket from Paeco Industries in the past. If I could get a copper headgasket for the RX turbo, is it recommended to purchase it? I've read that when using copper headgaskets on an engine, the head bolts have to be re-tightened due to the copper headgaskets not flexing. I'm just saying, if it's recommended to use copper headgaskets when running higher boost, I'll do so. I plan on going to 13psi and then doing what I have to fuel wise. Also, is there anyone here running copper headgaskets and if so, what's your experience with them? If not, I'll just be using OEM headgaskets until someone else is a guinea pig. I'm not a mechanic.

Don't you just hate all those rubber snake lines going through an EA82-T engine bay? Man, I hate looking at it.

Just so some of us dummies know, what year and model Subarus already have this 'spider intake'?

This is what I did not want to read. This is supposed to be a 'bolt on' affair. I'm looking forward to reading up on more people's experience. I'm not mechanic and I planned on installing a header/downpipe combo myself. Will see how that goes. It's nice to read that it's so much better. Would you say it's 'keeping pace with a stock WRX' type of nice or just nicer than stock? Again, you are only running 7psi right?

Wow! I can't believe there is actually an aftmarket product for the EA82-Ts. I'm excited!