I've got a 1992 Talon Tsi AWD that needs a good home. I *hate* to sell it, but I'm in need of about $2300 to take care of some bills.Details: 6 bolt motor 4 bolt axles EEPROM ECU with newer caps Forged internals (Wiseco pistons, Eagle rods) Balance shafts eliminated Professionally...

Hey John... Can you take a log while you are cranking? I'd look at all the signals to see what they are doing... in particular the engine RPM and the battery voltage.If that doesn't help, it's time to drag out the old volt meter. Check and record the voltage on each of the ECU Battery or...

Hey Tim, Welcome to DSM's and car dealers...Almost anything you need to know about DSM's has already been asked, so don't forget to try searching the past forums first.The transfer case in my car has been returned to the dealer twice now, and they are bound by law to fix it. Check out...

heh heh, the calcs were pretty simple... at steady state:dm/dt = 0In other words, we want the sump to remain empty, right? so the displacement of the scavenge pumps must be greater than (or at least equal to) the displacement of the pressure pump.To ensure scavenging during a...

Interesting point, GTM. Thinking about this I would say, to this end, that there are two ways to decrease the power consumed by a vacuum cleaner (or in our case an engine due to wind): 1) block off the inlet or outlet to the impeller (or crankshaft) or 2) remove the air molecules from the...

Why not just time how long it takes you to go one mile at exactly 60 MPH?1 mile at 60 MPH takes exactly 60 seconds.That should get your speedo right on, and if you think your tach is off, just check where the needle is when idling hot, and compare that to where it used to be (or compare...

By air to fuel I assume you mean O2 sensor readings (as in air fuel ratio -AFR-), either gauge or logged?If he ran lean, his AFR would have dropped, and if he had fuel cut or any kind of missfire, the oxygen in the exhaust stream would have also dropped the afr readings. My guess is that the...

Once again.. What codes? Give us some more information.

Rogue, I'll chime in here... start with a piston that has a higher CR. like a Wiseco 8.5 or a Ross (you will loose less compression that way, perhaps even return to stock). Place 1 intake and 1 exhaust valve in the head with a light (2-3 lb) spring instead of the valve spring. Use the regular...

You got that backwards, audiodude123. Advanced (over-advanced) timing will make you knock under boost and fail emissions from HC at idle. RETARDED timing will make the airfuel mix burn later (i.e. while it is flowing out the exhaust valve), putting more heat into the exhaust (but it does make...

I'll second that... It's your brake fluid level sensor wiring.You didn't add any transmission fluid to that container, did you? That would be a bad thing....

Beat to the punch!!

The factory boost gauge gets it's information from calculations made by the ecu. There is no real pressure measurement (on the 1G's at least) other than the baro sensor in the MAF.To answer your question, fixing all the vacuum lines won't help much....

Well, here's some info that the programmers amoung us can appreciate.DSM's are all about do-it-yourself for less $$$, so take a look at the site HERE Maybe we could get some more info and make some full featured software/shareware.

Well, I might as well add my $0.02 considering that induction and exhaust was basically my engineering thesis in college.1) Toss control. I have learned to never say never in the world of engineering, but I'm gonna call BS here. NO self respecting engineer would design a connecting rod that...

Do you seriously consider this an extreme tuner subject? This information is available in service manuals and "how to rebuild your engine books" at any library or parts store. Further, you're going to need tourque specs as well, so you might as well get a manual anyway.I'm not trying to give...

One more major cause of bearing failure that is not mentioned above is from incorrect machine work. The "tang" on one end of a plain bearing shell is not intended to hold the bearing in place, but rather to correctly position the bearing half during assembly. Plain bearings are held in place...

I'll take a guess that the confusing ones are the top ring land height and the deck height.The Top ring land height is the distance from the top of the piston to the top of the first piston ring (usually around 0.250 inches).The Deck height is the distance from the top of the cylinder...

Yeah, it's (440) 951-6600.One more thing, I was just looking at their 2003 catalog. It seems they have a part number for a 4G64 with a 4G63 head, and your choice of 21 or 22 mm pins. I don't recall seeing this before, but it should be a nice starting point for you, just tell them the custom...

I would go with the custom pistons. Don't just tell them the CR that you want, but rather do the research yourself and calculate it all. If you don't know how, google search online for instructions, or use a Java based calculator like the one HEREI would be sure to tell them that you want...

I would call Wiseco and ask them for their recomendations on coated piston clearances. Also, you might contact Swain Technology (ceramic coating company) for their recomendations as well. I have only done a couple of engines with piston coatings, and I just kept the full recomended clearance to...

Yeah you can just plug them right at the deck surface. The bottom side just runs down to the crankcase, right?We used to install screw in plugs in the decks of 400 cubic inch Chevy motors, but that was in the water jacket. I don't think that is necessary here, because the crankcase doesn't...

That would be a snap! Have your machinist bore the holes out to the next larger size core plug (freeze plug). Tell them to only bore the hole down far enough so that the plug is below the deck surface. That way, the plug will stop at the step when you install it.

HaHa... We are saying the same thing. The P-port IS ported vacuum. It's actually manifold pressure when the throttle is barely open, then it has the same pressure as the inlet to the t-body when the throttle is closed or more than partly open.I just realized, though, that this won't help. If...

So why can't we just connect the external boost reference port (the one you just installed at the bov) to the ported vacuum port on the throttle body? Then, closing the throttle will essentially route the boost reference port to the UICP as it was stock--No more compressor surge.I need to...

Yeah, they told me the same crap... but they said it after they replaced the t-case and drive shaft yoke. They basically said that they fixed it, but they wouldn't stand behind their work unless I change the carrier bearing. I haven't crawled under there yet to inspect the carrier bearing, so...

Just put the synchroshift or G.M. synchromesh fluid in from the start. There are no major items that need to "wear in" in a tranny unless you have new gears, so a break in period is not necessary (as it is with rings in an engine, for instance). The only other reason for running something else...

WTF? Are we talking about two different shafts? I'm talking about the shaft that goes from the center diff to the t-case, which is locked in place by A STEEL BALL. Why would anyone use a press? If you use a press, you will f-up the end of the shaft or the vc. How else is the ball going to get...

This is a safety recall item!!! They will replace a damaged transfer case regardless of the miles on the car. They will also fix it if it leaks. They are required to do so for the life of the car. I just had mine REPLACED a month ago at over 160,000 miles. There is a sticky on this in one of the...

Don't hate, you lived! ;)Sounds like a classic t-case lockup to me!!! All except for the collision with a guard rail or the 20 car pileup... LOL.Yes, the t-case locks only the back, although the front will still skid because of the VC when your car is moving at driving speeds.You...

That's a steal if it's in good shape!!Anyway, you can usually tell as soon as you pull the head. The valves generally bend out of the way and allow the pistons to go on their happy little way (unless the valve head pops off). A thorough inspection of the top of the piston is a good idea, but...

Several things COULD cause this; as you said injector stuck, O2 sensor getting hit by the fan in the wreck, fuel pressure regulator etc. The thing to do here is to NOT guess.Start by getting the codes from the ECM. Either find a mechanic that is worth a crap (no offense if he's a friend)...

Wassup in P-Town!!Just thought I'd throw in one thing to check.... Crankshaft endplay. Hit me up with a P.M. if you want to know how to check it. Having a '97 with that kind of mileage, I'd check it every 10,000 or so miles. That way if it does c.w. :shhh: you can catch it before it does...

As was mentioned above, you are correct; two of them are grounds. One grounds the heater circuit, and the other provides the return signal to the ecm (basically a ground at the ecm).I got 28.5 mpg (all highway, few mods) just last weekend using the exact method shown above. In a mix of...

Huh?:confused:Isn't there a little 7mm ball that holds the output shaft in place? Shouldn't he remove the viscous coupler and the ball to get the shaft out?I don't remember this exactly, but I think that the shaft comes out by hand if you remove the coupler and the ball. I would hate to...

IMHO, your probably in the wrong forum, but I'll leave that to the mods... ;) So, did you do all of your mods, drive it and THEN put in your injectors? or did your injectors and fuel pump go in together? The reason I'm asking is, you don't show an FPR in your list of mods. A stock FPR tends...

So how many miles are on this tranny? One thing that some people fail to realize in their trans is that the "synchro" is not the root of all shifting problems.1) Are you using the factory recomended trans oil (bad), or are you using the G.M. synchromesh oil like you should be?2) The...

Yeah, you can drive it that way, but you really should wait for it to warm up. The noise only lasts for a short period of time. Upon rereading my post, I guess I made it out to sound like they make alot of noise. It's actually fairly subtle, but it IS there. This noise is NOT to be confused with...

You are correct regarding the cost, however one thing that should be mentioned is the extra clearance required for forged pistons, as well as the extra time that you must spend warming up an engine with forged pistons. Don't get me wrong, I have forged Wiseco's in my motor, but I do wait 5-10...

Like 1G_TSI_AWD_BLK said, take a look at your clutch fork to make sure it moves with the pedal movement, and make sure your shift cables are hooked up O.K. I doubt it's a shift problem because you would have noticed that the shifter feels funny when you move it.It sounds like you either 1)...

Yeah, that's what I was was saying (in so many words) above. As long as all the pistons/pins have athe same mass, and the rods have the same mass/big end weight, all's well with the balance (for a four cylinder inline engine).1gTURD: Yeah, that makes a lot more sense. You'll be fine by not...

Well, to answer your question, there is no problem with simply balancing the the rods to each other, and the pistons to each other as well (balance with piston pin with the piston). Just remember to write down all the numbers before you put it all together. That way, if you ever have to replace...

Clean all of the PB/WD/snake oil or whatever crap you used off of your belts and pulleys using brake cleaner, then re-tighten your belts according to the service manual and you will fix your problem.I see this all the time. Someone installs a new belt, then in a few hundred miles the belt...

:confused: huh? I think they are talking about the BRAKE master cylinder. hehe, I've done that too....Anyhow, it's not too hard to change a brake master cylinder at all. The key to it all is to use clean brake fluid from a new bottle, bleed all four calipers until you get clean fluid out...

The dual tank system is an option on F150, 250, and 350 if I remember correctly. The option was very popular on the trucks that were used for trailer towing. You could use an external pump or an internal pump with the Ford switching valve. That shouldn't matter at all. The main point is to get...

You might try looking into a fuel switching valve from a Ford pickup that has dual tanks. One valve handles all of the feed/return line switching, and it's powered by the fuel flow from the in-tank pumps. All you would need then is a check valve in the pressure line from each pump to prevent...

Well, I'd say you're right... it is pretty obvious. A leaking slave cyl should be replaced. The thing I wanted to add, however, is that you need to look at your clutch master cylinder as well. If it's leaking inside the car around the shaft (you need to crawl under the dash to inspect it), then...

I'll take a stab at this... Have TPS code, checked: within spec. By this do you mean you checked it with an ohmeter, or did you check the voltage as seen by the ECM at the ECM connector? (the latter being a good way to find bad connectors, reference voltages and grounds). This might explain...

Yeah, the radiused entry is certainly a plus. According to my fluid dynamics texts, the square edge entry influences the pressure drop in the manifold by 0.5 x Velocity squared / a constant (part of Bernoulli eqn.). Using a proper radius changes the 0.5 to 0.05, which is a 10 fold decrease! If...

Got the 2600 in my 1G Talon, and I LOVE it. It felt stiff for about a day or two, but you get real used to it (my girlfriend still complains, but she can still drive it). I took it to the dealer for the T-Case recall, and the tech told me I need a new clutch. :rolleyes: Just be sure you get the...