Hello Fellow members,

First off I want to say that I'm not in my right mind. But Its ok at least I have paperwork that shows I'm a little crazy. I rather have documents to prove I'm crazy then going around my business never knowing. While society is laughing right behind my back. Well I feel better! Now back to the conversion... I've been using my FD as a daily driver for the last 5 months and I love my car. But hate when the car loses boost and the heat those twins produce. I've been doing a lot of research on single turbo conversions and from every angle you look at it, its expensive. But Thankfully I found a way that I can do it on a budget (Not Cheap). I got a hella deal on a S5 turbo hybrid with ported waste gate and custom manifold not factory! Started this project about 2 weeks ago and having great progress as we speak. Since my Car was completely stock I wanted to upgrade all around for HP purposes. Keep in mind I want simplicity with No boost issues. These are parts that I purchased for my small project.

-S5 Turbo Hybrid with ported waste gate (12.5)psi Turbo Blanket
-Custom turbo manifold
-Custom Downpipe 3" Heat wrap
-PFS Exhaust 3"
-3" SS mid pipe
-Pettit 2 Intercooler with Duct SMIC Older style
-50 MM Tial BOV
-Rare Micro tech LT8 Plug and play ECU
-LM-2 Wideband
-KOYO N FLOW
-Mishimoto silicone hoses
-BLOCK OFF PLATES

Now my question is the fuel system As I stated this car was bone stock. I'm not sure which way I should approach it that will be simple and support up to 350hp. I hear the 1300cc secondary are not reliable due to being modified. If I change my rail then Ill need 1600cc injectors ,Rail, FPR, fittings. Regardless I do need a better fuel pump which I haven't decided which one to use.


Has anyone done this swap on a fd?
What Fuel pump do you recommend?
What Should I do about Rail Injectors and FPR?

Just need opinions and thoughts................thanks in advance

 

First off, you need to get some pics up of that setup. And, I'm interested to hear what numbers you end up with!

1300cc secondaries are a good way to go. I run them and many others do, for what you're doing and the HP level you're looking at that will be fine. Pair that with a good fuel pump and a fuel pump rewire and you'll have all the fuel you need.

Dale

 

Dale,

I'll work on those picture. There is really not much write-ups on this subject which surprises me. But on a second thought people usually take the twins off for bigger and better stuff. Not just simplicity!

-1300cc secondary's
-Good In tank Fuel Pump
-Fuel pump Rewire

If the 1300cc are as good as you say I might have to go this route. I'm leaning to a Walbro 255 as for pump but really like the Aeromotive Stealth but looks like a overkill for my setup. The supras are good but twice as much as the Walbro. I really just want to buy what I need nothing to overkill if that make sense. When all said and done I will be taking the car to do fine tuning myself.

 

Some pictures as promised

 

S5 hybrid

 

How it looks mounted

 

Birds eye view

 

Koyo N flow

 

Mishimoto.

 

looks like a very decent highflow,, wondering if you have pics of the rear or some specs// its a big ask for 350 out of any highflow but some of the 60-1 versions can get close if attention is paid to the turbine wheel and wastegate selections as to minimise the backpressure issues
// i think you may have to eventually go external gate on this manifold to get best control out of the turbo

i do expect it may have a fair bit more through the spot where twins crossover but be marginally flatter down low than fully optimised twin setups

// though is infinitely simpler and that is a very good thing

 

Details on this hybrid. Well the compressor wheel and compressor housing are from a John Deere diesel and the inducer measures out 49.5 vs stock which is 48 I believe. The wastegate is ported out to the max. That's about it im using a big -10 as the return. It worked perfect in my buddy's car and solid 12.5 psi on spring pressure. Which is good enough for now. The exhaust housing is bone stock though. Interesting enough there's quite a selection of Frankenstein swaps on S5 turbos which helps for improvements.

 

It seems like the sweet spot for S5 hybrids is sort of 'medium sized' ones. A typical FC with stock S5 turbo does around 230-250rwhp max. The really small upgrades, like the old Knightsports and BNR stage 1, seem to do high 200s to the wheels, maybe 300 max. The biggest ones push the S5 turbine housing to the limit and tend to be pretty laggy, but have been achieving high 300s. I think mid 300s is possible, but I'm not sure whether OP's combination of wheels will work to meet that goal.

 

Is that axle stand on the sill? You're a braver man than me

 

Will find out a month or so the end results when I tune it on the dyno. Mid 300 is hard to do but at the same time I'm approaching this from another angle. I was always a firm believer on the BNR stuff from past experience. I'm not going all out for power as this is a car I like to enjoy driving to work. But at the day this will be a clean swap with ac, PS, cruise control and playing techno with my Bose. I wont be sacrificing Luxury, will have more power then twins , and simple to work on that a cave man can do it. Will I make 300 I'm confident its possible above well that's what we consider the challenge.

 

Hell yeah but my car has no rust so it holds up to the task quite well.

 

I doubt the s5 turbo will make more hp then the twins or be more responsive. There was a guy I met at forged a couple years ago he had done this conversion and made around 240hp. Not sure what boost or type of s5 turbo though.

I ran 1300cc injectors in my twin fd and was hitting 90% injector duty cycle on 14#s on stock twins, but the injectors never gave me issues. I would run the supra pump it is the exact same as the stock but just flows more. If you want it cheap run a walbaro with the fd kit.

 

Sleeper7 also did this way back in 2004 or 2005 when he was in Japan. Pm him and ask him about his setup.

 

Hmmm 240 seems a little low I doubt my car will make that with the mods I'm using. I just turned it on in the shop today after assembling everything and on a free rev it was making 6lbs of boost. I won't have the mean response like sequential turbos and I'm ok with that. But compare to non-sequential I'm thinking it should be better with the single. I'm going to run 12-13psi but in all reality I got tired of the twins there truly a waste of time imo. Would love to get some good results amd make this reach its full potential reliably speaking.

 

Interesting....thanks for sharing

 

Looks pretty good in there!

 

Thanks to you and your fabrication skills!

 

Ready for tomorrow?

Mine is.

 

makes so much more room in there!

 

Pictures of completion more to come

 

Sounds way better =)