Top Speed & Fuel Economy

[gkcooper]

Quote:

Originally Posted by Reaper1 Got the pic to work As for the code 26, I'm with the above post. The connector at the injector and the connector by the head both seem to cause issues. The grease that's in them is OLD and dirty, so get some electical parts cleaner and new dielectric grease. Clean the plugs and such(if you can actually clean each contact it will be even better), put the dielectric on them, and let 'er rip!

I have, on a few occasions cleaned the old grease out with contact cleaner then completely submerged the entire connector in WHITE DISTILLED VINEGAR overnite or maybe even 2 days. Get ALL the grease out for it to work. You will have like new contacts. Rinse well with clean water then use dielectric grease for coaxial cable. Or any high-temp, waterproof substance that doesn't conduct electricity. I have seen the stuff at Lowes and H-D for cable connections. You could also use Vaseline for low heat areas. The injector harness comes completely off the car and can be hung up and dropped into a jar of vinegar one end at a time. For the car side, I just bend it down and stuff the connector in a jar. Might as well do those power module connectors while you are at it. I have never had bad feedback from someone who has done this. Carburetor cleaner will turn the plastic pieces white and I do not recommend using it.

GKC

[Reaper1]

Wow...good info!! I can honestly say I don't think I've ever heard of that, but I can't see how it would do any harm to try it!

As just posted...PLEASE don't use carb cleaner or brake cleaner on the plastic connectors...if will degrade the plastic(ask how I know ).

[ljbprrfmof]

Okay, they called me back to work last night and kept me from the yard work I needed to do. When I was finished I pulled the Shadow into the shop to look around the injectors. As I was disconnecting a vacuum line, I had raised the harness and the main connector sort of bent. I wiggled it and found it had not been completely snapped together. I gave it a push and it clicked closed.

With all the extra time I had, I gave the car a good cleaning.

Later when I was driving it, I had no problems with it cutting out, at any speed.

The problem seems to be solved. Thanks gkcooper and reaper1 for your help.

[Reaper1]

OK, thanks to Ondonti on the other forum for finding a gragh of a stock 1989 TI engine(found below). At the required rpm for attaining 145mph(which was calculated to be 4628rpm with a 1992 A568) the engine would be making just under 150hp and just over 170lb-ft of torque(confirmed using (tq*rpm)/5250).

The torque curve of the "HI-Torque" engine will only be majorly different in the lower rpm range and only slightly altered in the upper revs, but not enough to make up that difference.

Taking a look at the dyno gragh and comparing it to the R/T's, the theoretical top-speed for a TI car(given the aerodynamics aren't that of a barn) *should* happen around 4200rpm, where the torque starts to drop off. The simple math shows this to come out to be right at 130mph! WOW...who'da thunk it! Physics WORKS!! LOL Once finals are over I may be able to take this a few steps farther and plot an actual gragh of aerodynamic drag vs. speed of the vehicle(that one's simple), then possibly power required vs. speed(gotta do some math for that one, going to try and use MATLab for it).

Anyways...all this seems to make plenty of sense to me...*shrugs* Make of it what you will.


1989 2.5 Turbo I(each tic-mark is equal to 12 units)

[The Pope]

Homepage Main Menu: Flat Out On A Public Highway! (home.htm)

working on this right now. Me and one of my workers are going to start the touring this year and start working our way up. Great place to start actually driving these cars. "Must have name and blood type on your helmet", love it.

PUBLIC HIGHWAY LAND SPEED RECORD"tm Qualifications (results-record.htm)

80s Lebaron owns the record they say....

[Reaper1]

The BODY of the car is a 1992 Chrysler LeBaron coupe. The car is actually a NASCAR frame though. There is nothing LeBaron about the car except the body shape.

Yeah, I've known about that for a while. As a matter of fact I'm planning to build my 1990 Daytona for that race. Ever since I heard about it I've wanted to do it. My target is to run the 170mph class. I'd like to try to hit 200mph with the car at some point...might have to go to a top speed event to try it though. Seeing as newbies HAVE to run the Touring class with a speed no greater than 124mph at any time, it'd be a great way to test the car's tune and all witout pushing it to the limit. Trying to maintain that speed for that long is HARD...espcially not running out of fuel! MANY cars have tried to break the record...most either break or run out of gas! LOL. A few years back there was that Japanese guy who had that nice 350Z who wrecked in that race...he walked away!! I've also heard of a few cars topping over 240mph at points...hell there are 15 mile straights!! It's only a 2-lane road though...I can imagine how narrow it gets at speed!

[vw505]

Hey reaper what part of jax do you live in? and is there any good places to pick up a 2.5 turbo around us.

[Reaper1]

I'm on the westside up by Paxon High School. Think "da hood" and you pretty much got it. LOL

As far as where to get parts...they're getting kinda slim around our area unfortunatly. I know there are people that are going to find that hard to believe, but Jax-U-Pull-It hasn't had anything good in a while. Main Street is a rip off. There are a few others, but I haven't been to any of them in over 3 years probably.

Are you looking for just a turbo, or a whole engine, or a whole car?

[Powell]

A little late in the post but anyways.... Well it seems the TII cars could do over 130 stock... I reached 127 in my old one with really not much problem but ran out of straight highway. But anyways, i just thought it was interesting that a few years back i call the dealer about some spedo's and they had one that had a limit of 160 mph. I thought wow...what cars had those? The TIII's??

[ljbprrfmof]

Okay guys, back to one of my original questions. At least an update.

I had the injectors changed back to stock last week, found and corrected a loose connection in my injector wiring harness, and have a nice little CSX T that is running much more smoothly.

I had the tank filled at the local station by an attendant and the calculation for mpg showed about 21.7. This was after the new injectors and Mobil 1 0W40 was changed in. I am not real confident about that reading, although I was trying to limit the fun driving.

Today, I needed to run an errand a little over 20 miles away, so I refilled the tank myself. I let the pump stop then squeezed it twice more and it spit up gas on me.

I took off on my run across the interstate and kept it to 60 and 65 mph most of the time in fairly heavy traffic. I went back to the same pump and filled up till it clicked off once, squeezed it once more and it spit gas on me once more. I registered 33.5 mpg!

So now it looks like I have it running the way it needs to and getting the proper fuel economy, on the highway at least.

I believe my next step is either try to learn how to get better economy on my 5 mile commute that I sometimes do two or three trips a day or live with the fact my big foot is an expensive waster of fuel.

When I get my next chance to run on the stretch of road that is safe for a speed run, I let everyone know how that turned out. My guess is in the space I have, I will see it nudge over 110 mph.

I'm also going to check out the dyno I just heard about 4 miles up the road from my store.

I appreciate everyone's input.

[Reaper1]

Yeah, short trips KILL mpg! Up in Jax I have to drive more than 5 miles to go anywhere usually...I get around 25-27mpg. Here in Daytona I only drive around 3 miles and my fuel economy is around 22-24mpg, sometimes worse if I decide to have a little more fun that I should.

[The Pope]

my moms masi TC on a 415 mile trip from Portland got 34 MPG. Then I took out the POS stock TC computer and added FWDs sweet stage 3, 32 MPG but at least twice the power.

The silver state doesn't need to be run with a ton of money in the car. 125 MPH is not hard to maintain on 318, read flat boring. I take the trip often, because I live in WA to drive to Vegas. I run a constant 11-115 with the 86 GLHS, mostly to keep mileage a hair better at 24 MPG. There is one spot on 318 that's ugly, last time through with ice I saw 4 cars and a semi in the ditch. During the Vegas Shelby get together me and a guy with a 89 CSX about crashed there at 125. The canyon is ugly. Me and the guy "Willy I believe" ran into the canyon at 130 and a gust hit our cars. I mean a lift the car off the ground and drop it in another lane gust. Otherwise the canyon is gorgous 45 MPH curves. One spot south of 318 on 93 is the most boring of the drive. I run 115 on it for 45 minutes and not one single turn or hump in the road, flat and straight as a drag strip. 318 has 12 mile down hill straights and is uneventful at 125 MPH, gas is no problem. Once your in boost it changes big time. My old 87 SC had a 70 mile range floored, thats 22 miles short of the finish line LMAO.

As for the Jap that wrecked, anyone remember Bruce Hertel? He is a friend of the guy I converted a Rampage for. He was one of the guys working out there and watched it. 215 MPH and he lost it, the most destructive wreck Bruce has ever seen. I don't call being air lifted in a Helicopter to a hospitol walking away but yes he did live. bruce lives in Medford, not far from there. But is pushing me to run salt, not the silver state because of the highway has farmers and clowns dropping bolts and nails and crap on it. Salt is clean and safe. Still a huge 2.2 fan the man said he would navigate for me though and watches the race as a volunteer when getting a ride. Bruce talked about his 8v with me as well. 2.0L with 438 WHP at 1450 degrees EGT. So if a guy near 70 shows up asking questions when you go down be nice lol.

[Reaper1]

I need to lower the fuel pressure a bit more in my car. I'm still at 10.3:1 or so at 22#'s. I think I may be able to eek out 30mpg and still be safe for fuel. The other thing I want to do is make it so the WB sends the signal to the comp. I can change the switching point so it runs a little leaner while cruising and such. Dunno how much good it'll do since it already reads around 14.9-15.2 at idle(I rarely see 14.7).

I realize that running the Silver State doesn't require too much money...espcially for the lower classes. I just want to go fast!! LOL 318 seems like it is a beautiful drive. I've seen a few videos of it...I liked what I saw. I love that area of the country anyways, so I'm kinda biased. It would be SO tempting to open up out there, but if you get caught doing it within 90 days of the event you can't run it. Hence it would be a boring ass drive with me outside the event because I'd be doing close to the limit. I've slowed down a LOT compared to how I used to drive. Tickets just aren't worth it...I like going fast, but I don't like the price that the law charges to do it. I think the canyon you are talking about is called "The Narrows" toward the end of the race. It's got to be interesting trying to take those 45mph corners at over 100! The really fast guys HAVE to! I've been trying to figure out strategy for this becuase you can't go over a certain speed for your maximum allowed speed, but you have to slow down for that portion of the course from what I understand. So, how do you make up that time? I do know that having cruise control would be AWSOME for the straights...it would be SO hard to keep your speed consistant for that amount of time(espcially in a car that had WAY more potential that what you are dirving it at). I suppose that's where the navigator comes in.

The car I was reffering to that crashed blew a tire. It was around the speed you said, but it wasn't becuase the driver couldn't handle it...tire just gave out. He slowed the car down, but lost it around 140mph(still fast enough). He did in fact get out of the car on his own. I think he was hurt, but not very badly. They medivac anybody that wrecks just in case.

I would figure that they'd do some sort of saftey check for F.O.D. before the race started. They do warn against running full race tires do to them being easily punctured, and they want you to run a tube if you do IIRC. I'd personally run some shaved DOT tires(I noticed they don't allow DOT slicks...I wonder if that's drag radials or the ones you can get for autocross ect.?). Salt looks like fun too, but there's something about that 90 miles of open road that seems so much more appealing to me.

Making power out of an engine isn't so much of an issue...it's getting it to make that power for a LONG time!

If I ever do get to go out there I'll certainly keep my eye out. I LOVE talking with older racers...I ALWAYS learn something! That's why I love hanging out with my buddy Phil...I learn something every time I go over there!

[The Pope]

There is a near stock 89 CSX that runs the 155 MPH class and averages it. Which anyone that knows the VNTs knoews you can do much before they over boost out of control. Just basically raise the boost with a 3 bar. Mine has a 2.5 with an S60 turbo lol. I also run new Konig 17 x 7 wheels, the feathers. Then I run the 225 40 17 tire in a Nitto 555. ANYONE with a Shadow or CSX would be in love with a set of these and the tires, fit and grip is perfect. Then I added poly everywhere and drilled and slotted 11" brakes. So I plan to run touring, but I don't intend to run a cage so it'll be limited. I want to cage 87 GLHS for higher speeds.

A big FMIC for real cold air and a leaner AF is needed. Some one drowning there engine with 10:1 AF is NOT going to make it.

Bruce Hertel is the guy that ran 199 with a 2.0 Lebaron years ago, but he is into other racing as well. The big difference is the amount of compact knowledge. My knowledge goes way back, but really only to 1990 for 4 bangers. A guy that goes back much farther is intresting.

That guy I am thinking of spoke no english and came here with a whole crew and spent millions to run the SS. When it comes to the import guys it is flat out amazing the money they have to spend. They say so fast cost so much, those guys in Japan must pay $5 for our $.5, nuts.

So touring for a bit, need to take turns getting the navigator roll done. So I get approved both ways. They also have the gun fight I believe they call it, a 1/2 or 1 mile drag race mmmmmmmm. So the CSX will get some fun in. Can't wait, also the price has come down and the SS is really quite the deal now.

[Reaper1]

My '88 is the car I'm reffering to running the A/F's. My '90 is in semi-permanent hybernation in my back yard right now. That is the car I want to build. I want to do a full cage and all on it. Nothing will be left untouched! Engine will be a custom built 3.0 turbo V6. In a perfect world it will be mated to a sequential 6-speed tranny, but we'll see...