Real Fiero Tech

I don't see any reason this part couldn't be turned from hex (heck, even square) brass bar on a lathe. It can be... I had a few of them made up. These accept the stock Fiero hard line: http://i152.photobucket.com/albums/s162/fieroguru/F40%206%20Speed/IMG_2788.jpg http://i152.photobucket.com/albums/...

does anyone have the bellhousing depth at the input shaft handy? I'm trying to find out if my clutch/pressure plate will work with the HTOB without a spacer. This should be everything you need to know: Originally posted by fieroguru: Most F23's should measure +/- .020" of so of the measurement...

The 3800's and LS4's never had manual factory calibrations either, but it doesn't take much work for the auto calibration to work well w/o stalling with the manuals. Factory manual 3800 calibrations exist, in fact, the "base tune" for my Fiero is partially based on one. 1996+ Fbody 3800 w...

I would suggest starting with the stock OBD2 ecm for the 3.4 DOHC application (even if its an auto) and wiring it up like is supposed to be (keep SFI). All of its tables will be very close to what is needed (like cold/hot start, timing map, fueling, knock, etc). You can then tweak the timing and fue...

I thought the return line outlet was that close to the pickup to help keep debris away from it and to keep the fuel from being aerated. Think about when you fill a bucket with water, if the hose is above the water level, there is a lot of agitation and bubbles are put into the water, if the hose is ...

Rickaddy88GT has the Solstice/Sky suspension sitting around and mocked it up with is LS4 swap/cradle. http://i152.photobucket.com/albums/s162/fieroguru/Solstice/100_6446_Medium.jpg The big thing to keep in mind is that from the outer edge of the lower flange on the 88 cradle to the outer edge of the...

Forget you even heard the word "breather". PCV is POSITIVE CRANKCASE VENTILATION. If you're using a "breather" then you're stuck in ignorant 1950's backwoods redneck hot rodding. You can use a breather/filter and have it plumbed properly. The PCV system needs clean filtered air....

The C4 Vette is probably the easiest fuel pump to replace. Just remove the rectangular flip up fuel fill panel between the rear hatch glass and the rear bumper (4 bolts - I think). Then you have direct access to pull the pump... all while standing behind the car.

Didn't read that far. I'd buy those parts tomorrow if you'd let me! And I like lightweight flywheels, so don't worry if it only weighs 6 or 7 pounds. Must be nice to talk shit huh? Well I'll have you know, my car no longer has a cigarette lighter, the wiring guru moved those wires somewhere else or...

I also read Guru's LS4 build thread, and I'm pretty sure that swap is not for me. The accessory belt hell and the whole starter/flywheel look to be out of my league. I am working to make the LS4/F40 more accessible to others. I should be offering the flywheel, starter bracket, F40 shifter bracket a...

Yeah, I don't think dropping a Fiero fuel tank is bad at all. Especially when compared to some other things.

For the '88, there are a couple of aluminum rear knuckles from FWD GM cars that look like possible replacements, but those options are more likely to use tiny FWD rear brakes, which are certainly not ideal on a Fiero. FWIW, almost all the tri-link rear uprights that come on a FWD car have the later...

I have some racing experience with a fiero but I always ran on a full tank. Do fieros suffer from fuel starvation during maneuvers? Is a swirl pot required? A turbo engine that starves for fuel under boost is a recipe for melted pistons. If the stock baffle is in place and in good shape, they don't...

Large fuel pumps can heat your fuel to the point of vapor lock. Summit sells a fuel cooler to combat this. I'm running a stock C4 vette pump in The Mule... I'm guessing that Guru is running a Walbro 255... not exactly huge pumps by modern standards. I run the stock L31 pump on most my swaps, includ...

how about the early model cradles? any real improvement to be made by adjusting control arm/tierod mounts? I know the '88 is considered the ultimate, but I'd bet a second look could come up with something better. On the 84-87, you can change the angle of the lower a-arm mounts to lessen the pro-squ...

The stock 88 cradle is 50 lbs. The aluminum cradle from an LS4 car is 40 lbs for reference. On the 88 rear cradle there isn't much more that can be done but raise the lateral link pivots to help with the rear camber gain. The weak parts on the 88 cradle are the front and rear crossmembers, so I norm...

I've only ever had it happen on the highway. After about 30-40 minutes of normal highway driving, in hot ambient temps, the car randomly feels like it isn't getting fuel, loses all power, sputters, and dies soon after. The car won't restart, but the pump runs. If I wait about 25 minutes I can get i...

I don't have the file with me right now, but the camber gain with relocating the top of the struts is minimal with about .3 degree (I think) improvement over 6 degrees of roll and it really depends on the rear ride height and other mods (like my lateral link relocation kit). Edit: checked the file a...

I have zero photography skills and a cheapo camera... but I will post a few of my car. This one really makes the car look good... the paint is quite poor and has a 2 foot wide racing stripe down the hood I don't like: http://i152.photobucket.com/albums/s162/fieroguru/LS4/IMG_0454-1.jpg Engine bay sh...

Cool find. Now where do we get some metric threaded adjuster tubes?? Woodward Steering has metric swaged tubes in their catalog, but all of them are listed as unavailable due to material shortage. Might call them to see if that is still the case. http://www.woodwardsteering.com/images/swaged%20tube...