mr2-digest Wednesday, February 4 1998 Volume 02 : Number 220 Race MR2 For Sale Re: MR2 wheel offset Cool Racing Site (not MR2 stuff) MR2 MKII NA MagneCoreWires and Home Dyno MR2 re: cd players MR2 re: 4A-GZE block Re: MR2 Mk1 Headlights MR2 RE: More Boost Loss MR2 changing SC oil? MR2: MKII straight line driveability 2-way radios for meets (not really MR2 related) Re: MR2: MKII straight line driveability Re: MR2 RE: More Boost Loss RE: MR2 mr2 load capacity of a 2! RE: MR2 speaking of cam covers.... (now about leaking oil on cam cover) MR2 need some info RE: MR2 changing SC oil? Re: MR2 re: cd players ---------------------------------------------------------------------- Date: Wed, 04 Feb 1998 09:22:19 -0500 From: Tony Kern Subject: Race MR2 For Sale Saw this in the classifieds of the Feb. issue of SCCA's SportsCar magazine and thought to pass it on to the group: 1986 TOYOTA MR2. Fresh motor, Accusump, Kirkey seat, MSD, Stainless steel header, eight Revolution wheels, four new Kuhmos, 1997 NYSRRC champion. $5000. (717)869-1871 days, or (717)869-2855 eves. Lotsa goodies there for MKI owners ! (I am in no way associated with the seller). ------------------------------ Date: Wed, 04 Feb 1998 09:28:09 -0500 From: Steve Bagdon Subject: Re: MR2 wheel offset Bihn, Jeff S wrote: > > anyone know the offset and bolt pattern and size for the mkII turbo? Offset is on the wheel (14x7JJ45, I believe, 45 is the offset). Bolt pattern is standard Toyota 5-bolt (matches the Camry), whatever that is. Steve B. ------------------------------ Date: Wed, 4 Feb 1998 09:36:00 -0500 From: "Burns, James B." Subject: Cool Racing Site (not MR2 stuff) Check out: http://www.kwyjibo.com/ispeed/ This is an awesome site for wheel-to-wheel racing photos with very high quality pictures. They now have pictures from the recent Daytona 24-hour race. No MR2s, but there was a 2-liter turbo Eclipse in the GT3 class and some RX7s. Brad ------------------------------ Date: Wed, 4 Feb 1998 10:04:47 EST From: Mr2toy726@aol.com Subject: MR2 MKII NA MagneCoreWires and Home Dyno After all the hype about dyno testing wires I actually expected more than 2 responses to this post...maybe you guys were to bust talking about VTEC motors to notice...(sarcasm) How much are the magna core wires for a 91 NA MR2, and where do I get them? I suppose I should tell you guys the whole story...I got the Jacobs Omni Pac installed a couple weeks ago, I also purchased The Home Dyno...I haven't had a chance to weigh my car so the home dyno may or may not be real accurate...but it is consistent as hell...I made baseline runs 4 runs and all returned with 1 hp of each other, then I returned to the garage and disconnected the Jacobs stuff to see how much "power" I would lose...to my suprise I gained an average of 2 hp and 3 ft lbs of torque. So I pulled the system off my car and was preparing to return it to Jacobs...When I called them, they asked what wires I was running, and I said "brand new stock ones"...the guy immediately claimed that was my problem...when I retorted back that they had recommended the stock wires he admitted that was only because they didn't currently make wires for my 5SFE...then he offered me a $50 credit to go spend on new high perfomance wires such as MagneCore (and extended my trial time another 30 days)...I haven't made up my mind yet as to whether I will get the wires, because what if the Jacobs still doesn't make more power? Then I would have a set of high-po wires with no use for them.....Anyone want to buy a slightly used (less than 500 miles) set of Toyota wires? I am really suprised by the loss of power from the Jacobs unit, I could easily see a break even, but how could a stronger spark be making less power? I'm really beginning to think Jacobs is all hype. On the good side of things my homemade intake and K&N filter did give me a 3 hp and 5 ft lbs of torque gain. You guys should see the torque curve on my 5SFE, it is a damn flat line from 2000-5000 rpm. I am planning on a free-flow exhaust and maybe a hollow cat (moew)...I know everyone says I will lose some low end torque, but after seeing the curve I think I really need more top end and am willing to sacrafice some low end. Thanks, Aaron 91 NA ------------------------------ Date: Wed, 4 Feb 1998 10:00:59 -0500 From: "Miller, Bill [PRI]" Subject: MR2 re: cd players I've always wondered why this seems to be the accepted way of connecting a CD player to an existing or in some cases new tuner / receiver. By using the tuner section for CD playback, aren't you limiting not only the frequency response but also the dynamic range, etc. to the specs on the tuner? FM tuners are severely limited in each of these areas simply because the FM signal transmitted is also limited. I was initially skeptical of this. And I would have to agree that how can you get the full dynamic range of a CD if the tuner specs have a narrower range. What I can offer is real world experience. I have a Pioneer 12 disc changer that hooks to a Pioneer KEH-P8600R head unit and I playing through MB-Quart speakers w/ a Soundstream amp and a JL Audio sub. My wife has a Pioneer 12 disc changer that goes through the FM and plays through the stock speakers in her Cherokee. While my system sounds better, my wife's CD's sound fine. Since it's so easy to hook up, I might try and hook the FM modulated changer up to my system to get a true head-to-head comparison of direct connection vs. FM modulated. If I do, I'll post to the list. Bill ------------------------------ Date: Wed, 4 Feb 1998 10:11:52 -0500 From: "Miller, Bill [PRI]" Subject: MR2 re: 4A-GZE block It's my understanding from talking to the people at TRD and Toyota Motorsports, that the newer (88-89, maybe late 87) NA blocks are the same as the SC blocks. They have the additional webbing and enlarged crank journals. I'm not sure about the piston pin height but I would guess that the SC engines are lower compression than the NA ones and one way to do this is to change the piston height. I don't have the hard numbers, but I do know that turbo versions of engines have lower CR than NA versions. I'm guessing it has to do w/ the additive effect of putting a pressurized charge into a chamber from an SC or turbo motor combined w/ the overall CR of the engine to give some 'net' CR that is higher. I would think (and I'm sure there are plenty of cases out there to back this up) that if you just and a turbo or SC (w/ some significant boost) to a motor and not strengthening the motor or lowering the CR, you'll end up blowing something (usually the head gasket as it becomes the weak link). My $0.02 Bill ------------------------------ Date: Wed, 04 Feb 1998 10:22:30 -0500 From: Steve Bagdon Subject: Re: MR2 Mk1 Headlights > The headlights on my Mk1 have become very temperamental. > > They do not always rise when I flick to headlights. Replace the headlight switch. > --------------------------------------------------------------------------- > This email is only for the use of the addressee. It may contain information > which is legally privileged, confidential and exempt from disclosure. > If you are not the intended recipient you are hereby notified that any > dissemination, distribution, or copying of this communication and its > attachments is strictly prohibited. If you receive this communication in > error, please email nadmin@tsbbank.co.uk. > --------------------------------------------------------------------------- I was sure to forward this to everyone I knew... Steve B. ------------------------------ Date: Wed, 4 Feb 1998 10:37:38 -0500 (EST) From: "Gregory T. Euliss" Subject: MR2 RE: More Boost Loss >Date: Tue, 3 Feb 1998 20:28:53 -0500 >From: "Burns, James B." >Subject: MR2 RE: More Boost Loss > > >Ayways, if this is the case, how do you bipass the VSV? Is >this >possible? Yes, I completely removed the bugger and joined the two hoses together with a graduated hose connector purchased at the local auto parts store. > >what are the side affects? Works like a charm, no more cold weather boost limiting, and maximum boost is available all the time now. >what should I do. I'm going to >willow soon, >and I > >don't want to be limited to 7psi... > > > >Austin T Email me if you need further details. ------------------------------ Date: Wed, 04 Feb 1998 10:40:25 -0500 From: Steve Bagdon Subject: MR2 changing SC oil? Ford finally got in my 2 bottle of SC oil, so I'm ready to change it. Any words of wisdom from anyone using Ford SC oil. Supposedly the Toyota oil comes in a syringe, and after checking my fluid level I see why - the hole is incredibly small! Any hints on draining what's in there, and gettting new oil in? Thanks in advance to anyone who can help with this! Steve B. ------------------------------ Date: Wed, 4 Feb 1998 10:43:00 -0500 From: "DOUGLAS A SCHNEIDER" Subject: MR2: MKII straight line driveability Help my car won’t drive in a straight line!!! I am having a problem were my car on snow wiggles back and forth. It feels like the back end moves about 2-3 inches side to side while driving down the highway. Last year it was doing this in rain, but when I put a new set of tires on the rear, the problem went away. Now the tires have about 50% ware on them and it’s doing it again just on snow. Has anyone experienced this, or knows what the problem is. I can’t take this constant side to side motion. Doug 92 NA 98K miles ------------------------------ Date: Wed, 04 Feb 1998 10:57:09 -0500 From: Jamie Dennis Subject: 2-way radios for meets (not really MR2 related) I remember that there was talk about using 2-way radios for MR2 meets, but only sort of followed the conversation at the time. With the big Southern Fried Meet coming up, I'd be interested in hearing about people's experience's with staying in communication. Did you use FRS radios (I've been poking around a bit on dejanews), or some other means (GMRS?)? I'd like to stay away from licensing for the time being, and will probably want hands-free operation. Also, anyone attending the S.F.M already have some such device? - -Jamie '93 Turbo - -- Misspellers of the world untie! ------------------------------ Date: Wed, 04 Feb 1998 11:02:21 -0500 From: Mark Sink Subject: Re: MR2: MKII straight line driveability I was limited to 45 MPH going to work today because of the rain, and lack of tread on my tires. Yes, the back end moves a lot. If you don't like it: 1. Get better tires 2. Don't drive in the snow 3. Buy a front-heavy American car. What you are experiening is the what makes this car a blast to drive in the dry. Low polar moment of intertia, rear weight bias. The car is designed to corner and be fun to drive, not plow through snow in a straight line. :) mark sink DOUGLAS A SCHNEIDER wrote: > > Help my car won’t drive in a straight line!!! I am having a problem were > my car on snow wiggles back and forth. It feels like the back end moves > about 2-3 inches side to side while driving down the highway. Last year it > was doing this in rain, but when I put a new set of tires on the rear, the > problem went away. Now the tires have about 50% ware on them and it’s > doing it again just on snow. Has anyone experienced this, or knows what > the problem is. I can’t take this constant side to side motion. > > Doug > 92 NA 98K miles ------------------------------ Date: Wed, 04 Feb 1998 11:12:28 -0500 From: Jamie Dennis Subject: Re: MR2 RE: More Boost Loss Burns, James B. wrote: > > >Ayways, if this is the case, how do you bipass the VSV? Is > this >possible? > >what are the side affects? what should I do. I'm going to > willow soon, >and I > >don't want to be limited to 7psi... > > > >Austin T > > I was thinking that maybe you could rig up the VSV so that it is > energized all the time, but I think this may cause some problems. First > of all, in my case I want to adhere to stock class Solo2 rules so I'm > not allowed to do this. > > The VSV has +12v applied to one side, and the ECU supplies the ground on > the other side in order to energize it. You could cut the wire to the > ECU and ground the VSV side of it, and this should keep the VSV always > energized. However, there may be some problems with this: > 1. It might cause the ECU to sense something amiss and give you an > error code and maybe retard timing, etc. > 2. The VSV would be open even under vacuum (it is normally energized > only when you have positive manifold pressure), and this would cause air > to get sucked backwards through the VSV. This would be a very small > amount of air that flows through that skinny vacuum line, but there must > be a good reason they designed it this way. > > As far as bypassing the VSV, I don't know how. Do manual boost > controllers bypass it? If so, what keeps air from getting sucked > backwards under vacuum? Is there a check valve in the MBC? > Manual boost controlers themselves don't bypass the the vsv (they are, as are electronic controllers, a way to bleed of pressure and fool the wastegate into not opening until some higher pressure is reached). Part of the install process is usually to block off the turbo vsv, though, since you want to take it out of hte loop. I did this by capping both entrances to the vsv, and then plugging each vacuum hose that was formerly attached to it. You don't want the VSV and boost controller both fighting to control the wastegate actuation pressure. As a consequence to the above, when I have my profec turned off, I only get 7psi (pressure at which the wastegate really opens). Stock (with the VSV connected), I was getting 10-11psi! Note: I don't see this as a bad thing. > Another solution is to sell the MR2T (or give it to me), and buy a > Fiero. > > Brad Burns - -- Misspellers of the world untie! ------------------------------ Date: Wed, 4 Feb 1998 09:30:36 -0700 From: "McQuillin, Gordon" Subject: RE: MR2 mr2 load capacity of a 2! Moving into my new studio, I finally decided to buy a bookcase and get the books out of the boxes they had lived in for the past 3 moves (seems like once a year damnit....). So I buy the bookcase, and it comes unassembled in a box 7 foot tall, about 1 ½-2 foot wide and about 6 inches thick. The guy wheels it out on a dolly and proceeds to walk straight to the minivan parked next to me. I say "no, over here in the tiny one" and he asks "can you put the back seat down?". I avoid telling him only if he thinks it will go through the engine also, and manage to have it go from passenger footwell out through the t-top. Fit just fine, and since I was msart enough to place a towel over the roof behind the t-top area it didn't mark the car up at all. I need to make a few friends who own pickup trucks, since my other form of transportation is a sportsbike, which has only slightly more carrying capacity than the MKII. :-) Have a good one. Gordon Talking of load carrying.. I went to pick up some flat pack boxes and styrofoam for work in my mk1. Anyway I crammed it in (whilst defying the laws of physics) and drove back to work with polystyrene balls jammed against my head. I once purchased a set of Sony 150W speakers for my home system and The salesman NEVER thought I had a chance of fitting it all in the '2 (and to tell the thruth, neither did I ;) ------------------------------ Date: Wed, 4 Feb 1998 09:34:52 -0700 From: "McQuillin, Gordon" Subject: RE: MR2 speaking of cam covers.... (now about leaking oil on cam cover) I've found that "Simple Green" works wonders as an engine degreaser. Spray it on, wait a few minutes, wash it off with water. On a common note, I get oil that seems to leak out of one of the sparkplug wells, noticed by a slowly increasing dirty area around the well. (seems all the dirt sticks there for some reason...wonder why..:-) ) What do you all figure is the way to take care of this? Tighten the sparkplug, or is it more likely a leakly gasket? Thanks for any help you can give. ------------------------------ Date: Wed, 4 Feb 1998 12:13:54 -0500 From: "Miller, Bill [PRI]" Subject: MR2 need some info To our European contingent. I have a request. I'm trying to locate some European headlights for my 93 VW Corrado. I have the VW part #'s if someone could price them for me and look into what it would take to ship them to me here in the states. The part #'s are 535 941 017C Left side 525 041 018C Right side These are the full headlight assembly, less bulbs. Thanks much, Bill PS Please respond in private ------------------------------ Date: Wed, 4 Feb 1998 12:28:31 -0500 From: Chris Conlon Subject: RE: MR2 changing SC oil? Steve B. wrote: > Ford finally got in my 2 bottle of SC oil, so I'm ready to change it. > Any words of wisdom from anyone using Ford SC oil. Supposedly the Toyota > oil comes in a syringe, and after checking my fluid level I see why - > the hole is incredibly small! Any hints on draining what's in there, and > gettting new oil in? I got a few feet of thin-wall aquarium tubing (if you get the very stretchy silicone rubber type, so much the better) and a syringe designed for giving medicine to babies. Plus many band-aids & much patience ;) You might do better with a tiny funnel or the like, but I only had to add a few tens of milliliters. As for draining the old... sorry. It was spotless on the dipstick and I didn't bring *that* much patience. HTH, Chris C. ------------------------------ Date: Wed, 04 Feb 1998 09:46:29 -0800 From: James Yothers Subject: Re: MR2 re: cd players Just .02$ Within the FM band there can be found numerous frequencies that is used publicly wide. Hence FM restrictions. As a private user, and non broadcasting, there are only the restrictions of how much power can you supply. There are FM modualtors that prevent you from getting the response you are looking for. The radio stations are allowd 10K on their frequency, and that quality is not so bad. CD frequency response is 30K and better depending on the player. The problem lies that most humans can only hear a 15-20K frequency response. ( I could be wrong on the actuall numbers - it could be 100K? I could be missing a 0?) Basically there is no problem with this and I get the real high highs and the extremely low lows from my Pioneer system. I have it connected up to my Technics system for DJ functions. And I need it loud and low. Just 2 cents Jim At 10:00 AM 2/4/98 -0500, Miller, Bill [PRI] wrote: > >I've always wondered why this seems to be the accepted way of connecting >a >CD player to an existing or in some cases new tuner / receiver. By >using >the tuner section for CD playback, aren't you limiting not only the >frequency response but also the dynamic range, etc. to the specs on the >tuner? FM tuners are severely limited in each of these areas simply >because the FM signal transmitted is also limited. > > >I was initially skeptical of this. And I would have to agree that how >can you get the full dynamic range of a CD if the tuner specs have a >narrower range. What I can offer is real world experience. I have a >Pioneer 12 disc changer that hooks to a Pioneer KEH-P8600R head unit and >I playing through MB-Quart speakers w/ a Soundstream amp and a JL Audio >sub. My wife has a Pioneer 12 disc changer that goes through the FM and >plays through the stock speakers in her Cherokee. While my system >sounds better, my wife's CD's sound fine. Since it's so easy to hook >up, I might try and hook the FM modulated changer up to my system to get >a true head-to-head comparison of direct connection vs. FM modulated. >If I do, I'll post to the list. > >Bill > > - ----------------------------------oo(^)oo------------------------------- James A. Yothers - jyothers@cadence.com, jyothers@iname.com, jyothers@hotcity.com, jyothers@interpart.com horserider@unforgettable.com 85 MKI RED If you find yourself in a hole......stop digging! ___________________________________oo00oo_______________________________ ------------------------------ End of mr2-digest V2 #220