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Double post. Please delete.

The radiator fan on my '03 Cobra doesn't come on during normal driving, and I'm trying to figure out why. History: I bought the Cobra in 2020 from a seller in Texas. I flew down and when he picked me up at the airport in it, it overheated. We discovered that the radiator fan physically would...

I've got a DoB super single heat exchanger ( Super Single Heat Exchanger S550 - Department of Boost ) and the requisite MAF Racing bumper support ( Mustang Bumpers and Core Supports ) and need to get them installed. Does anyone have a list of hoses that are needed to connect the super single to...

I want to enable DFCO (decel fuel cutoff) in the tune on my '03. Originally, the settings were as below. No matter what, letting off the throttle results in pops and burbles and clearly a bunch of unburned fuel coming out the exhaust. With the top down, I get a fair amount of gas smell too...

I picked up some used Deatchworks 60 lb injectors. They came in a Deatchworks box but without the flow sheet. I called Deatchworks and they have numbers etched into the bodies which the tech said meant they were Deatchworks sourced injectors, but couldn’t confirm their rating aside from the box...

I'm window-shopping for a replacement for my '04 Cobra to do street and roadcourse duty. No solid-axle cars, so GT500s are out. Needs to be factory supercharged, so '15+ GT and GT350 are out. Needs to have a back seat, so the Vette and Viper are out. Which pretty much leaves the Camaro ZL1...

I have 18x9 and 18x10s on my Cobra now, with R888s in 265/35R18 and 295/30R18. The R888s were great the first year, okay the second year, and mostly crap the third year. I have maybe 5K miles on them and the grip has gone to shit. The first problem is the cold. The R888s are summer-only...

I have a Gen2 TVS on my '04, and it's a disappointment. Mostly I think it's because my tuner was ridiculously overly conservative. (BBK DBTB, 60# injectors, VMP BAP and MAF, LFP dual-pass HE, 70/30 water/coolant with water wetter) I was running a 2.8 pulley, which made 19 PSI. The tuner gave...

I've recently installed an LFP dual-pass heat exchanger (which appears to be visually identical to the Afco) on my '04, which is running a TVS Gen2 with a 2.8" upper pulley. I don't have any scientific results handy, but the IAT2 temps don't seem to be any better than with the stock heat...

I recently put a set of Epic Friction pads on my Cobra. They're touted as being grippy, quiet, and clean, and sure enough, they hit all of those qualifications. But, I ran into an issue. SKIP DOWN FOR MY QUESTION, IF YOU DON'T WANT TO READ THE BACKSTORY. When installing the rear pads, I...

I was in the process of bleeding the brakes on my Cobra following rebuilding the front calipers (plus new pads and rotors) and was having some trouble getting all of the air out. One of the recommendations I saw was for pumping the brakes with the engine on, so I did so. With the car idling (I...

I refreshed the front calipers on my Cobra--cleaned them up and put in new seals and dust covers--and put on braided steel lines. (I didn't touch the rears yet--that'll happen early spring when the Cobra comes out of hibernation.) I have a fancy-pants air-compressor-powered vacuum brake...

I am installing new seals in my Cobra's calipers. Are the seals (the ones that go inside the bore and seal up against the pistons) directional? I feel like they should be, but looking at them, I can't tell. If they are directional, how do I tell which way to install them?

You guys are probably getting sick of my questions but.. I'll ask anyway. I'm currently running a TVS with a 2.8" pulley, 16.5* of timing, and 93 + booster. I have a heat exchanger on the to-do list to get IAT2 readings down, but I'm debating a smaller pulley. When I originally got my Cobra...

<edit> I have one primary question. Read everything below if you like, but I primarily want an answer to the following question: Those of you with TVSes running 93 octane, at what IAT2 does your tune start pulling timing? ------------------------------------ I'm trying to determine how the...

My Cobra has a recently-installed TVS Gen2 with a 2.8" pulley. It peaks at 19psi and drops to about 18psi at redline according to my overlaid stock boost gauge. AFR at WOT is around the mid-11 range--I have an alarm set to go off if it hits 12:1. I've been running 93 octane E10 fuel (from...

I recently finished a TVS upgrade on my '04. It got a 2.8 pulley, VMP MAF and pump booster, 60# injectors, and a BBK 65mm DBTB. My only complaint is driveability when pulling away from a stop during normal driving. (Like at a stoplight or stop sign or whatever.) Previously, when my car had...

My '04 Cobra has a recently-completed TVS swap (2.8", 60lb, SCT3000, BAP, BBK 65mm) and I am fighting a sticky throttle body with the BBK 65mm DBTB. Details here: https://www.svtperformance.com/forums/threads/new-bbk-65mm-sticky-at-light-throttle-worse-when-warm.1146128/ A buddy has offered...

I am finishing up a PPRV delete install on my '04 Cobra. I've been irritated in the past that I can't siphon gas from the tank using a hose (like if the car is being stored over the winter), so before reinstalling the tank, I removed the little check valve that's part of fuel filler neck, after...

While in the process of having my TVS install remote tuned, we are having an issue with a recurring P0405 EGR code. My tuner says that the "system software switch for EGR is already off", but that sometimes the code will still crop up and to compensate for that, he has set all of the EGR test...

You may have noticed my other recent threads regarding getting my new TVS install properly tuned. (2.8 upper, 60# injectors, VMP pump booster, VMP 3000 MAF.) Most recently, I have been trying to address a periodic hesitation issue. Someone in that thread suggested clocking the MAF housing at...

I'm in the process of remote tuning a TVS install on my '04 Cobra. It got the TVS with a 2.8 pulley, 60# injectors, VMP MAF, BBK 65mm DBTB, and VMP pump booster (on stock pumps). Occasionally the car will buck, hard. I'm not sure if it lurches and then falls on its face, or if it falls on its...

I am in the process of datalogging my Cobra for remote tuning, following a TVS install. My tuner noted that battery voltage was low in my WOT pull datalog. Sure enough, it is. That graph shows battery voltage during a second-to-third-gear pull. When I was in-it-to-win-it, battery voltage...

I'm finishing up a TVS install, and am using a BBK 65mm DBTB. I went with DB because I'd heard issues with tuning and drivability with SBTBs. The problem is that at slight throttle openings or when the throttle is gently opened, its sticky. Like instead of moving smoothly, it moves in little...

I'm nearing the end of the remote tuning phase of a TVS gen 2 install on my '04 Cobra. I'm running a 2.8 pulley, 60# injectors, a VMP MAF, VMP pump booster, and a hybrid JLT RAI / some other filter housing. I did install the S-hook. I am running a 30 / 70 ratio of coolant / water, with the...