Factory Five Forums https://v1.thefactoryfiveforum.com/ Builder community site for Factory Five Racing. en Sat, 02 May 2026 09:54:27 GMT vBulletin 10 https://v1.thefactoryfiveforum.com/images/misc/rss.png Factory Five Forums https://v1.thefactoryfiveforum.com/ FOR SALE FACTORY FIVE MK lV https://v1.thefactoryfiveforum.com/showthread.php?53579-FOR-SALE-FACTORY-FIVE-MK-lV&goto=newpost Thu, 30 Apr 2026 00:47:52 GMT 2021 Factory Five MKlV MKlV complete kit from Factory Five Drivetrain from Blueprint Engines. 302 c.i. carbureted engine. T5 5 speed... 2021 Factory Five MKlV

MKlV complete kit from Factory Five
Drivetrain from Blueprint Engines. 302 c.i. carbureted engine. T5 5 speed transmission
Ford 8.8 rear end. 3.55 gears. 28 spline Moser axles. 11.65 disc brakes

Factory Five Options:

powder coated chassis
3 link deluxe rear suspension
stainless steel bumper kit
stainless steel side exhaust
wind wings
sun visors
brake duct wire mesh
chrome roll bars
roll bar grommet set
assembled side louvre set
FFR GPS gauge set
vinyl dash with glovebox
Wilwood disc brakes in front
wood grain steering wheel
FFR logo floor mats

Other options:

Finish line seat belt bezels and bumper grommets
Dark Water Customs rear view mirror bracket and trunk access panel
Russell Thompson throttle pedal
Herb's custom door panels
Breeze automotive engine bay battery mount kit, hood scoop fasteners, fan shroud, hinged upper radiator kit, lower radiator kit, cockpit storage kit, seat slider, radiator cowl
cover.
Metco driveshaft safety loop
Cobra heated seats
American Muscle wheels 17x10 rear and 17x9 front
Firestone Firehawk Indy Tires 275/40R17 rear and 255/40R17 front

Cherry wood console (original ffr console also included), removable head rests, engine bay panels powder coated, wheel well panels coated with truck bed liner.
GM sunset Orange paint.

I am the builder and seller of the car. It runs excellent and I have had no problems with it since the build was completed. I enjoy building the cars more than driving them and it does not get driven. I am currently building a FFR hot rod truck.

Clear Ohio title listing as an assembled vehicle. located in Portsmouth, Ohio.
Asking $45,000.00

Please contact me for more information, more photos, or to see the car in person. Thanks. ]]> For Sale - Factory Five Cars Dennis W. https://v1.thefactoryfiveforum.com/showthread.php?53579-FOR-SALE-FACTORY-FIVE-MK-lV ERA 289 Cobra replica for sale https://v1.thefactoryfiveforum.com/showthread.php?53578-ERA-289-Cobra-replica-for-sale&goto=newpost Thu, 30 Apr 2026 00:31:44 GMT ERA-2080---Factory turn key built in 2002 by ERA. Titled as a 1964 Ford using the ERA VIN, Painted white frost pearl, with deep maroon metallic... ERA-2080---Factory turn key built in 2002 by ERA. Titled as a 1964 Ford using the ERA VIN, Painted white frost pearl, with deep maroon metallic colored stripe similar to CSX 2173, proper FIA dash w/correct Stewart Warner gauges, switches, Heater/defroster, wipers, convertible top W/side curtains, Correct 15”wood Cobra steering wheel, Leather seats on sliders, E-brake handle cover, door panels, 4 point seat belts, full carpet set, Wind-wings, Sun visors, AC pedals, proper FIA-6 pin knock off wheels with fresh Cooper Cobras, 235/60/15 fronts, 295/50/15 rear, ERA competition rear W/outboard brakes , ERA competition front brakes (12.3 rotors), Front and rear sway bars, Adjustable coil over shocks, Tremec TKO 5spd with hydraulic clutch and blowproof Lakewood bellhousing, ERA spec HD aluminum radiator with aluminum overflow tank, Oil cooler, Front bumperettes, Full rear bumper, Per documents in build binder-351W stroked to 396ci, 9:8:1 comp, SCAT steel stroker crankshaft, Eagle HiPo rods, Keith Black-Hypereutic pistons, canton 8 quart oil pan, Car cover, All docs back to original order from ERA, Fully sorted, needs nothing, 20+ years old and eligible for export to Canada and elsewhere $72,500 downsizing our collection now that there is only one driver. PPI welcomed here in Greenville, SC.
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]]> For Sale - Other Cars mrmustang https://v1.thefactoryfiveforum.com/showthread.php?53578-ERA-289-Cobra-replica-for-sale Roadster radiator question https://v1.thefactoryfiveforum.com/showthread.php?53577-Roadster-radiator-question&goto=newpost Thu, 30 Apr 2026 00:26:47 GMT Just replacing a two year old rad, that seems to have a small leak. Ordered a new one from factory fave and it just came in. Question is the new one... Just replacing a two year old rad, that seems to have a small leak. Ordered a new one from factory fave and it just came in. Question is the new one has the same angled top tube but the bottom comes out at a straight shot from the bottom, is this a new setup or did I get the wrong rad. The outside of the box says roadster . Just looking for input. If this is the new setup is there any tricks ideas to help reroute the lower hose for a 302 engine .

Thanks ]]> Roadster Bellecobra https://v1.thefactoryfiveforum.com/showthread.php?53577-Roadster-radiator-question Carbon Fiber Dash? https://v1.thefactoryfiveforum.com/showthread.php?53576-Carbon-Fiber-Dash&goto=newpost Wed, 29 Apr 2026 22:17:05 GMT I didn't know this was available? Looks a lot like Brent's.

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]]> PNWTim https://v1.thefactoryfiveforum.com/showthread.php?53576-Carbon-Fiber-Dash Upgraded Louver Install. https://v1.thefactoryfiveforum.com/showthread.php?53575-Upgraded-Louver-Install&goto=newpost Wed, 29 Apr 2026 19:13:09 GMT I wanted to install my louvers without a rivet showing, so I took this route. Stole this idea from another member here and I apologize for not... I wanted to install my louvers without a rivet showing, so I took this route. Stole this idea from another member here and I apologize for not remembering the user name. So credit goes to the unknown member that got me started down this path.

I contemplated using the epoxied studs on the body, but ended up using industrial velcro. I measured the thickness of the velcro to give me an idea of how much gap to have on the backside.
20260429_120021.jpg
This is the stuff I'm using. Once stuck to the body, it felt very secure.

I then started bending the tabs up on the louver.
20260306_170916.jpg

Once I had all the tabs bent up, I was able to create a template for the L bracket.
20260306_172721.jpg20260306_171035.jpg

From there, I just transferred the template to the L bracket and ground slots where marked.
20260306_173805.jpg20260306_172919.jpg

A little trimming and the L bracket sits on the louver quite nicely. Then just bend the tabs back down.
20260306_175013.jpg20260306_174726.jpg

I had even 3d printed a gauge for the thickness of the velcro. It's off by about .008, so don't rely on that for an accurate.
20260306_175057.jpg

Hope this gives some options for people. You could still use the studs epoxied to the body this way. This just makes it so you don't have to rivet the L bracket on.
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]]> Roadster Wizbangdoodle https://v1.thefactoryfiveforum.com/showthread.php?53575-Upgraded-Louver-Install T45 pops out of 2nd gear https://v1.thefactoryfiveforum.com/showthread.php?53574-T45-pops-out-of-2nd-gear&goto=newpost Wed, 29 Apr 2026 05:11:42 GMT Hello Gentlemen, My MK4 is a donor build (circa 2015 with a 98 Mustang GT donor) 4.6 2v with T45 five speed transmission. As my car is in body... Hello Gentlemen,
My MK4 is a donor build (circa 2015 with a 98 Mustang GT donor)
4.6 2v with T45 five speed transmission.
As my car is in body shop jail, body off now after body work and almost ready for paint I brought the chassis home for cleaning, wire tidy up, etc.
I drove the car 5000 miles in gel coat before taking it to body shop and never having driven the Mustang as it was a crashed car I discovered that the transmission would pop out of 2nd gear while cruising or decelerating if I hit a small bump (or big bump).
Does the forward slanting shifter handle play much of a part in this?
It stays in gear fine under throttle.
If transmission is in need of parts now is the time.
Any insight into this situation is greatly appreciated.
Thank you,
Dave ]]> Roadster Duke66 https://v1.thefactoryfiveforum.com/showthread.php?53574-T45-pops-out-of-2nd-gear Could use some help with my steering rack https://v1.thefactoryfiveforum.com/showthread.php?53573-Could-use-some-help-with-my-steering-rack&goto=newpost Wed, 29 Apr 2026 03:05:58 GMT Hi all. I just received a PSC steering rack (https://www.summitracing.com/parts/PFN-RA-33500), which I bought to finish my rolling chassis as my kit... Hi all. I just received a PSC steering rack (https://www.summitracing.com/parts/PFN-RA-33500), which I bought to finish my rolling chassis as my kit POL parts are over 2 months out. Researching it a bit, I found that many of you all are not happy with the F5 rack anyway, and have used this PSC upgrade. My question is with regard to the F5 tie rod extensions. What I gather is that these are intended to improve the stock mustang rack against bump steer, and not needed on the F5 complete kit racks. So, should I pull apart the PSC rack and install them, or is this a better performing part?
Thanks for the help!
Tom ]]> SMF-Coupe https://v1.thefactoryfiveforum.com/showthread.php?53573-Could-use-some-help-with-my-steering-rack Gen4X oil change oil quantity. https://v1.thefactoryfiveforum.com/showthread.php?53572-Gen4X-oil-change-oil-quantity&goto=newpost Wed, 29 Apr 2026 00:20:54 GMT I dropped my car off at a tuning shop and they are doing my first oil change as well. They just called me because the Moroso oil pan distorts the... I dropped my car off at a tuning shop and they are doing my first oil change as well. They just called me because the Moroso oil pan distorts the stock dip stick.
Can anyone please advise the recommended replacement oil quantity?
Thanks in advance. ]]> Myron Nelson https://v1.thefactoryfiveforum.com/showthread.php?53572-Gen4X-oil-change-oil-quantity Free MK4 Chassis Dolly - Georgetown TX https://v1.thefactoryfiveforum.com/showthread.php?53571-Free-MK4-Chassis-Dolly-Georgetown-TX&goto=newpost Tue, 28 Apr 2026 21:08:19 GMT Just like the title says. This one sits a bit higher (stacked the 4x4's) and sits on amazon 3000 lbs casters.

It'll be disassembled by this weekend to get some space back, but I can re-assemble with you at my place if you'd like.

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]]> Pay It Forward! ACDad https://v1.thefactoryfiveforum.com/showthread.php?53571-Free-MK4-Chassis-Dolly-Georgetown-TX Mythical art of plug reading (help needed) https://v1.thefactoryfiveforum.com/showthread.php?53570-Mythical-art-of-plug-reading-(help-needed)&goto=newpost Tue, 28 Apr 2026 20:38:09 GMT Hello Peeps!
Since it's a rainy day here I decide the next things to start looking into is to see what the plugs are telling me about the running condition of the car. It's been about 20-30km and not much driving since I've started to adjust the carbs and moved the vacuum advance to port vs timed (i.e. more timing at idle). The car was definitely running rich before, and is probably still rich but less so now. I only did 2 plugs for now just to see what I find, will probably pull the rest later.

Car has around 9300km at this point, plug likely have been in since rebuild.

Here's what Cylinder one plug looks like:
cyl 1 042826.jpg

And cylinder 5
cyl 5 042826.jpg
cyl 5 042826 - 2.jpg

Gap is at .35 (a little low isn't it?) and its a NGK Vpower R5671A-8.

What I'm seeing is:
1. Running rich (carbon build up)
2. Some carbon build up on the electrodes, especially Cyl 5 on the case of the side electrode

I don't have enough run time on the "new tune" to see if its leaned out yet, but looks to me like the plugs are too cold? Would appreciate your opinion!
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]]> Roadster Kivyee https://v1.thefactoryfiveforum.com/showthread.php?53570-Mythical-art-of-plug-reading-(help-needed) Longer Brass Nuts for sidpipe mounting (?) https://v1.thefactoryfiveforum.com/showthread.php?53569-Longer-Brass-Nuts-for-sidpipe-mounting-(-)&goto=newpost Tue, 28 Apr 2026 18:19:05 GMT I'd like to replace my existing 3/8" Brass Nuts next time I remove the sidepipes.
I've had the longer nuts and prefer them, but can't remember where I purchased them from. I've seen the shorter Dorman nuts, but can't find the longer ones now.

Can anyone tell me where they got them from?

Thanks! ]]> Roadster MPTech https://v1.thefactoryfiveforum.com/showthread.php?53569-Longer-Brass-Nuts-for-sidpipe-mounting-(-) Replacement for Odyssey PC925 battery? https://v1.thefactoryfiveforum.com/showthread.php?53568-Replacement-for-Odyssey-PC925-battery&goto=newpost Tue, 28 Apr 2026 16:29:22 GMT I found an old thread about replacing the FFR-recommended Odyssey PC925 battery with an Optima 9078-109 but the poster hasn’t been on the forum for a... I found an old thread about replacing the FFR-recommended Odyssey PC925 battery with an Optima 9078-109 but the poster hasn’t been on the forum for a few months, so I thought I’d see what others are using in their trucks. Questions:

1) The specs for the Optima 9078-109 (roughly 10x7x7) appear to make this battery too large to fit on the stock battery shelf which is about 8x8x8. Has anyone used the Optima without modifications to the stock battery space?

2) Any other recommendations for an Odyssey replacement?

Thanks! ]]> ggeezer https://v1.thefactoryfiveforum.com/showthread.php?53568-Replacement-for-Odyssey-PC925-battery Windshield wiper wheel box locations with firewall forward https://v1.thefactoryfiveforum.com/showthread.php?53567-Windshield-wiper-wheel-box-locations-with-firewall-forward&goto=newpost Tue, 28 Apr 2026 14:03:48 GMT Hello all Creeping up on getting to the State patrol office for my VIN inspection here in Colorado. One of the last few steps I have is to mount... Hello all

Creeping up on getting to the State patrol office for my VIN inspection here in Colorado. One of the last few steps I have is to mount the wiper wheel boxes. I went with the specialty windows unit, and I installed a firewall forward in my Mk4. I wanted to see if the locations of the wheel boxes needs to be changed at all? Sounds like it might be the better/easier answer to have the cable run to the front/hood side of the engine bay rather than towards the firewall? All input appreciated!

Thanks ]]> Roadster Rian_Colorado https://v1.thefactoryfiveforum.com/showthread.php?53567-Windshield-wiper-wheel-box-locations-with-firewall-forward Need Wide Band A/F Gauge Advice https://v1.thefactoryfiveforum.com/showthread.php?53566-Need-Wide-Band-A-F-Gauge-Advice&goto=newpost Tue, 28 Apr 2026 12:23:05 GMT .
I'm running a 427W with Holley 750 double pumper. I wanted a "stand alone" air/fuel meter to aid with tuning. I installed an analog-style (NOS brand) meter along with a Bosch LSU 4.9 O2 sensor which came with the kit. I am NOT impressed with the gauge. (Yes, it is installed correctly). It works sometimes....but not other times. Sometimes, under a steady load, rpm, and throttle position the needle will jump around quite a bit (for example, from back and forth from 13.0 to 19.0 rapidly).
.
1) I've decided I want to change out the gauge and I am looking for recommendations for a better gauge. I would prefer analog style if possible as I find it easier to read at a glance while driving.
.
2) I'm wondering about the plug connection for the Bosch 4.9 sensor. My question is: Is this connection a universal connection? If so, I would only need to buy a gauge and plug it in the the sensor I already have. This would lower my cost as I would not have to buy a complete kit. For some reason, I am thinking all Bosch 4.9 sensors have the same plug.
.
Thanks for any help. ]]> Roadster ProfessorB https://v1.thefactoryfiveforum.com/showthread.php?53566-Need-Wide-Band-A-F-Gauge-Advice First attempt at a somewhat authentic glove box door https://v1.thefactoryfiveforum.com/showthread.php?53565-First-attempt-at-a-somewhat-authentic-glove-box-door&goto=newpost Tue, 28 Apr 2026 02:16:17 GMT I have been going back and forth as to whether or not to add a glove box. Finally, I decided to try to build the door and if it turned out... I have been going back and forth as to whether or not to add a glove box. Finally, I decided to try to build the door and if it turned out reasonably well then I would move forward with the glove box project. Below is a picture of my first attempt at building the door... I cut a total of six pieces of aluminum, so I actually have enough aluminum to make two more should this one not be satisfactory once completed.

I moved the fuse box to the right side of the car so there is not much room behind the dashboard where the glove box is located. The glove box will only be about an inch deep. A buddy of mine is going to 3D print the box itself. I looked at this project as the door and hinge being the difficult portion... if I can pull that off then my buddy can design the box to work with the door.

Cobra glove box door 3.jpg
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]]> Roadster StangRacer https://v1.thefactoryfiveforum.com/showthread.php?53565-First-attempt-at-a-somewhat-authentic-glove-box-door