I'm drawing out the fuel system for my TT build. I started looking at the Racetronix stuff. Specifically the PTFE lines and fittings.

I saw in another thread that someone said they were Fragola fittings, but Racetronix said they actually have their own line.

Any input or experiences would be appreciated.

J

 

i have used their fittings with good luck but not their hose.. I actually use quite a bit of the evil energy brand from amazon and have had really good luck..

 

you havent used their hose
or
you havent used their hose with good luck?

just wanted to make sure I am reading it correctly.

 

Haven't used their hose.

 

My entire fuel system is Racetronix -8/-6an PTFE fittings and hose, pumps and electronics. It's great stuff goes together really easy and looks good

 

My entire fuel system was as well, but had to use more flexible hose in some places. IMO the PTFE is too stiff to bend - especially 90 degree bends in areas without a lot of room to arc the bends.
I replaced with Aeroquip StartLite aramid outer covered hose to route the back 1/3 of the the feed and return lines up to the tank. IMO there is no way -8an hose will make a 90 degree bend to the 98 fuel pump assembly. I cut the stock 90 degree feed and return inlet tubing and routed the hose down the front of the tank with mild bends along the frame. Not sure on the 99-2002 tanks how the feed and return are routed on top of the tank like the 98's.

Tip: order extra olives as they are NOT reuseable if you have to remake or shorten the hose in some places. If you cut the PTFE with a cutoff wheel remember to make sure to blow the fuel line out before installing the fittings. A lot of black crud accumulates in the hose when making each cut. You don't want it to contaminate your fuel filter right from the get-go.





The same applies to the -8an hose that connects the two rails together on front of intake manifold. It is so stiff it makes it difficult to clamp down the rails. I will be replacing this short hose with Aeroquip StartLite aramid -8an with Aeroquip fittings. It is much more flexible and the bend radius is much much less than the -8an PTFE hose.




Note: Racetronix does have more flexible PTFE hose. However, it is very pricey as are its competition. Sure is easy to work with, however.

IMO, Racetronix has good products and there is nothing wrong with the hose. Be aware that -8 and -10 and is very stiff to route in tight places when routing the hose.

 

I have their fbody fuel line “kit” and the quality is outstanding. Zero issues and has been on the car for 2 years without issues. Ordered from the Ws6 store and direct from Racetronix on multiple occasions and shipping is very fast from Canada.

 

What I've found that works pretty good is to use a heat gun to route around tighter places, I never use a zip disc on this hose only heavy duty cable cutters and there's zero debris inside the hose. Once I assemble my hoses I'll pressure test them to around 100 psi for 10 minutes.

 

Just wanted to update this. I ended up using Racetronix fittings for everything and was super impressed. I did not use PTFE fuel line though.

 

thanks for the update! What hose did you use?

 

Earl's black braided hose that's compatible with E85.

 

sounds good, thanks!

 

Our hose is E85 compatible as well but that being said all rubber hose (regardless of the brand and liner used) will deteriorate (dry and crack) over time with today's gas.
This is why you will not see rubber used in 99% of OE fuel applications from about the late 90's/early 2000's onward.
With rubber hose it is inevitable that vapors will permeate so the smell of fuel will be present in an enclosed environment.
It is always best to use PTFE (Teflon) hose for fuel systems.

 

Glad to see racetronix chime in.. I've found braided line on race cars running race gas the life is about 2 seasons, then it always seems like a section gets weepy, typically where the line takes heat.
Doesn't seem to matter if its PTFE or the Tygon liner..
The additives in race fuel are supremely nasty stuff, Personally I use stainless hard line end to end and keep the rubber to just the spots where its mandatory..
but we all have our little OCD tweeks...

 

I haven’t run Racetronix on a full build yet, but I have used them on a couple of supporting systems and they held up well. For a TT fuel setup I’d note that routing and support matter just as much as the fittings — especially if there’s an evil energy fuel line running close to headers or turbos. PTFE lines cut down on swelling and contamination, which is nice, but make sure everything clears heat and vibration.