FS Single fuel pump conversion for LT5

[Flyman 27]

Have fuel Pump problems? There is a solution! A conversion to a single high performance pump. Invested a LOT of time researching & building one for my ZR-1. Decided to see how much interest there would be in more of them. All stainless construction. High performance Racetronics Turbine Fuel Pump.
Specs & notes:
ZR1 ZR-1 LT5 New Fuel Sending Unit, Single Pump Conversion
? Entire unit made of Stainless steel, No more corrosion!
? All power leads upgraded to 16 gage for cooler running.
? All new High Performance, corrosion resistant Bulkhead.
? All New electrical Connectors upgraded; corrosion resistant.
? Simple plug-n-play installation, you just need to unplug one lead from the ECU, instructions provided.
? OEM single pump capacity = Nom 18.8 GPH @ 5 Amps.
? OEM Both Pumps Capacity = Nom 26.7 GPH @ 10 Amps.
? New Performance pump = max 67 GPH Capacity @ 12 Amps.
? System combines power leads from both OEM pumps to power the single Performance pump, no rewiring required, plug-n-play!
? New Racetronics high performance fuel pump installed.
? New pump is Turbine Type for long, sustained running at full power!
? Noise reducing sleeve installed on pump.
? Rated for up to 550HP at the crank.
? Fuel Supply tube modified for extra flow.
? Includes new tank flange seal/gasket.
I just added all stainless installation hardware to the kit.
These are not cheap to build and they take a couple hours to build. I decided that $400 shipped would be a fair asking price. Please PM me if you have any interest.

[DRM500RUBYZR-1]

Nice!
I like it!
Sold.
PM me payment details.
Thanks,
:cheers:
Marty

[DRM500RUBYZR-1]

Dan,
Payment sent via paypal.
YES, it looks beautiful!
GREAT workmanship!
My Ruby should love it!
Thank you,
Marty

[JT ZR-Won]

Wow, that is fantastic! Good to know, thanks for posting that

Jay

[Matt B]

You should build a batch of them, it looks amazing, provides plenty of volume, should be bullet proof and is plug'n'play. What else do you want?
Great product!

[aafc]

Very nice,
I would like one. I was going to due this mod, but you have made it
happen. PM me information on how to pay.
John
1990 white/black #2546
one of a few 4l8OE EQ ZR-1's

[Flyman 27]

These are in stock and available for immediate shipment!

[aafc]

Dan,
have a question on the single fuel pump conversion. PM me.
JOHN

[Flyman 27]

These are available for immediate shipment.

[DRM500RUBYZR-1]

Have not installed it yet.

TOO Busy ADMIRING it!

I just might buy another for display purposes only.

The execution is FLAWLESS!

True Auto ART!

You just might say that I like it.

Arrived in 48 hours!

Well done all around!

:cheers::cheers::cheers:

Thank you,
Marty

[Flyman 27]

Thank you for the nice words, it is greatly appreciated!

[Matt B]

Will you be at the gathering?

[Flyman 27]

No, not this year.

[Flyman 27]

Matt B,
I can't send you a private message until you clear out your old messages, your account is totally full.
Dan

[aafc]

Well after having trouble with the stock fuel system (two pumps) in my ZR-1
I was going own make my own based on marks write up. But Flyman 27
offered single pump setup for the ZR-1. Well that made It easier for me a
already made system that I could install with out to much trouble (getting
out the two pump system).Brought the single pump system and installed
It. Works great, but I noticed that the fuel pressure would drop as soon as
I turned off car. Not a big deal, turns out there is no drain back valve . OK
now my engine is a 368 cu.in. motor with 12 to 1 compression. Flyman 27
said just install a check valve from tank output to the engine.
And problem solved, holds pressure starts in about 3-4 seconds
and pressure holds for restart.
I'am very happy with this system and would recommend it if your having
issues with dual pump system.

John
1990 white/black # 2546
one of a few 4l8OE EQ ZR-1's

[Jagdpanzer]

I'm interested
PM sent


Sent from my iPhone using ZR-1 Net Registry (http://r.tapatalk.com/byo?rid=90383)

[Matt B]

Matt B,
I can't send you a private message until you clear out your old messages, your account is totally full.
DanDone. Sorry, it all came together this time [emoji23]

[Matt B]

Got mine today. Thanks Dan for making, thanks Marc for bringing it [emoji3]

Looks awesome, can't wait to install it. Definitely great work!

[efnfast]

I saw Matt's at BG, what a beautiful job. Looks factory.

[Flyman 27]

I saw Matt's at BG, what a beautiful job. Looks factory.

Thank you for the kind words.

Dan

[bmarcum]

I am very interested as well. What is the one wire that has to be disconnected from the ECM? How do you suggest disconnected it? What does the computer know/do? Also how best to order your set up. BTW. I agree it looks like very nice work!

[Flyman 27]

The pumps come with step-by-step instructions on how to unplug the ECM connector, it literally takes a minute, very easy.
You get your choice of a Racetronix turbine pump or a comparable Walbro gear pump. Same price.
The Racetronix turbine is pretty much dead quiet and is made in Canada.
The Walbro is a gear pump so it can be heard similar to the OEM pump, it is made in USA.
The pump is a very easy install.
You will want to order a new boot usually, they are stiff & tear easily if OEM.
https://www.amazon.com/1984-1996-Corvette-Filler-Neck-Boot/dp/B00355QWOK/ref=sr_1_1?crid=1BMB1ESTHDKGW&keywords=corvette+fuel+filler+boot&qid=1653310855&sprefix=corvette+fuel+filler+boot%2Caps%2C95&sr=8-1

I will PM you payment info.

[viper107]

do these need a one way valve installed in line, i read from here somewhere where he had to do that due to long crank to reprime fuel lines?

[Flyman 27]

It's a matter of choice.
If you want a check valve for the Racetronix pumps, I can include it for free.
The Walbro pump has an internal check valve.
It's your choice.

[HAWAIIZR-1]

It's a matter of choice.

If you want a check valve for the Racetronix pumps, I can include it for free.

The Walbro pump has an internal check valve.

It's your choice.



I don?t understand that. My car with your Racetronix pump works perfectly and starts the same as before. If there was a delay I would not mind it at all since it would allow more oil priming which I do anyway (depress all the way down and hold while cranking) if not started recently. I remember you offered the check valve but I don?t need or want it. Thanks for an awesome product.


Sent from my iPhone using ZR-1 Net Registry (http://r.tapatalk.com/byo?rid=90383)

[fastpace]

Installed the single pump from Flyman on my 1990, was about an hour job in total. What's really nice is that he's already done the wiring on the tank side so the sending unit plugs directly into the factory plug, no wiring needed on the tank side. The only thing needed is to remove the wire at the ECM, which takes a paperclip and a minute to push the pin out then cover with heat shrink. Happy I went ahead with the upgrade, an hour now will probably save me hours of frustration later when the originals decide to give out.

[Prez1967]

Received my pump a little over a week ago. The thing is a work of art. Looking forward to tackling install sometime next week.

[Flyman 27]

These are still available. I stock ones with the Racetronix Turbine Pump (made in Canada) and the (Made in USA) Walbro gear pump. Your choice, same price, same performance specs.

[RUSSELL]

PM sent

[XfireZ51]

Dan, have u ever measured if there was any difference in fuel pressure between the single v dual pump setup.

[Raykahn]

Dan, have u ever measured if there was any difference in fuel pressure between the single v dual pump setup.

Short answer: No difference for me

I have a fuel PSI gauge in my Z and had been pretty familiar with my fuel PSI during various.. activities :) . Recently bought one of these through Dan's ebay (didn't realize he had them listed here). I had no issues with my dual pumps, but my sending unit tracings were damaged and my fuel level didn't read correctly. So my comparison is probably accurate for both systems functioning properly

Normal operation it sits around 45 PSI for me. WOT the PSI jumps up to around 52.

Previously I had an opportunity to talk to Haibeck about the single pump conversion and he said as long as it stays above 48 PSI at full throttle and 6000 rpm then it is working well. I have not experienced anything to make me disagree.

I have the racetronix version.

[1993C4LT1]

Any available? I'm a buyer asap.

[tnova]

Looking for two assembles. Still available?

[Flyman 27]

I have 2 pumps available immediately, more on the way in a few days.
Please PM me if interested.
Prices on everything has gone up.
I am selling at $400 + $25 shipping (fully insured).
Mark has installed my pumps now and he recommends them on his webpage.

[tnova]

Sent a PM but not showing in my PM sent files. Did you get it?

[Flyman 27]

Didn't get it.
I didn't get any notifications of posts on my thread either. Not sure what is going on.
Please email me At:
DLMERRILL27@gmail.com

[1993C4LT1]

Email sent!

[tnova]

This is absolutely one of the best whole package, quality products for a car I've bought. Complete instructions, all accessories, top notch materials, and assembly.

[Flyman 27]

I am leaving on vacation this Friday & will be out of the country for almost 2 weeks.
If anyone needs a pump, please order ASAP so I have time to ship.
I have 4 pumps ready to go for immediate shipment.
DLMERRILL27@gmail.com

Dan Merrill

[TallySpeedRacer]

I've tried cleaning unit my sending unit twice now, it works for a couple of tanks and is now again stuck at full. It's time for some new hardware, I'm going to the mountain run in May and would like to have this problem resolved. What do I need to send you?

Andre'

[TallySpeedRacer]

I'll take one, what do I need to send you?

Andre'

[Flyman 27]

PM sent

[ws6ta444]

I would like one of these, how do we order one?

[Flyman 27]

PM sent

[ws6ta444]

thank you, I will be ordering from you

[Domestic Power]

Hi Dan,
Could you send me a PM on how to order your kit ?
Thanks in advance !

[Bristowb1]

Hi Dan how do I order?

[Flyman 27]

I sell on ebay, it's the easiest way.

https://www.ebay.com/itm/166458203967

[TallySpeedRacer]

I installed one of your fuel pump conversions last year which ran well for 6 months or so. I I currently have a fuel pressure issue which kicks me out of full power due to low pressure (code 61, lean). The idle pressure is showing 38 psi, thinking it should be around 47-48. Have you any idea what the problem may be other than a faulty pump?

Andre'

[Flyman 27]

1) Using the connector plug under the hood at the harness can you check the amperage being pulled by the pumps? At idle & rpms?
2) Did you change both the relays when you changed the pump? Sometimes they are worn & won't pull full amperage.
3) Idle pressure should be around 43PSI give or take a little.
4) Also, pull the vacuum hose off the fuel pressure regulator & see if you smell gas, if so, your regulator may have failed.

Please let me know what you find.

Dan

[Flyman 27]

I will be leaving the country on Saturday & will not be back until Feb 5. I will not have access to the forum.
After you verify the info above, if the relays are new & the amperage is appripriate being drawn from the pump. The most likely culprit I can think of is the plastic fuel line clamp at the Fuel Pump. That would limit the max pressure the system would see.
Haven't seen one break yet, you would be the first, but it is more likely than a turbine pump failing.
IF The clamp has failed, replace it with a narrow steel clamp, don't overdo it & don't use a heavy clamp. You will break the pump trying to tighten it. The nozzle on the pump is not torque tollerant. Be very careful.
I am confident that you are experiencing one of the above issues. I have not seen one of these pumps fail yet and some guys have tons of miles on them.
IF you DO have a failed pump, I will replace it for you when I get back.
Please update theis forum or send me a PM on what you are finding.

These are the FP Relays I have been recommending and people have had good results with:
https://www.amazon.com/gp/product/B004Z0WMQQ/ref=ox_sc_saved_title_1?smid=ATVPDKIKX0DER&psc=1

[TallySpeedRacer]

Dan,
After the first attempt at repair we replaced the secondary solenoid and fuel pressure regulator only because one was available. Upon start up we could only muster 31-32 psi at idle, and about 38 psi at 3500 rpm.
After removing your pump we did notice the clamp on the line connecting to the pump was broken, couldn't tell you if that happened on installation or removal.
Aaron Scott who is more of a corvette purist wanted to put two new Delphi pumps on the original assembly and clean up the faulty sending unit as this was the reason for replacement in the first place. So, after rebuilding and installation we were able to attain 42 psi at idle and 51 at 3500 rpm. We tested the car on the road and had the secondaries kick in without interruption or fault codes. The gas gauge also seems to be working for the time being.
I don't recall Aaron mentioning if he tested your pump for amp draw so I can't tell you if that was a problem.
I'm sorry I couldn't isolate a specific problem for you but do appreciate your feedback in helping me along the way.

Andre'

[Flyman 27]

I don't get it. I must be missing something.
I figured out that the only thing I could think of that could cause what you were seeing would be a broken fuel hose clamp at the pump output.
The mechanic removed the sending unit & found a broken fuel hose clamp at the pump (like I figured) & decided to replace the whole unit anyway? For a 50 cent broken hose clamp?

[sgentilella]

Are these still available? If yes, what is the lead time and payment options

Thanks

[Flyman 27]

I have 1 in stock now, don't delay if you need it.
After that it will take 7-8 days to get more materials in.
I sell them on ebay for an easy, secure transaction.

https://www.ebay.com/itm/166637693615

[RUSSELL]

you wouldn't happen to be making any of these any time soon would you.

[Flyman 27]

Just leaving on vacation.
Will be back next Friday.
I will have 2 ready to shi at that time.
On ebay.

Dan Merrill

[green91ZR-1]

Purchased your fuel pump and had a local garage install it because the rebuilt fuel pump I tried got stuck during installation. Your pump got my ZR-1 running again. Problem now is it stumbles a bit if pushed hard with my vallet key turned off. It stumbles and acts like it is not getting any fuel at times with the valley key turned on. Any suggestions regarding what I did wrong?

Bruce Dickey
1102 Brown Cir
Rhome, TX. 76078
mbrucedickey@gmail.com

[Flyman 27]

Sorry, I did not get a not of your message, didn't see it.
Was the installation complete? Was the ECM terminal disconnected? This allows the power from the secondary circuit to add power to the single pump. Each single circuit supplies a max of 10A, the single pump can pull up to 17A under full power conditions, it needs both circuits.
Also, the second Fuel Pump relay or fuse may have failed or the relay is intermittant.

Let me know what you find.
Feel free to DM me, I am sure I will get the message then.

Dan

[aod]

The eBay link no longer works to purchase these and I have sent a private message to Flyman 27 last week but have gotten no response. I would like to get this fixed before Winter is here if possible. Does anyone have one of these setups they would like to part with?

Thanks.

[Flyman 27]

I was on vacation.
I now have parts in stock again.
I plan to assemble a couple more pump assemblies this weekend.
I anticipate having them back on ebay sometime Monday, ready for immediate shipping.

[aod]

Excellent news! Thank you so much! I look forward to when they are available again and I will order one right away.

[Flyman 27]

Just listed 4 more pump assemblies.

Dan

[aod]

I just wanted to write a post in here that this fixed my issue right up! The build quality on this piece is astounding. I felt kinda bad putting the rubber boot back on top of it and hiding all that beautiful hardware.

One word of warning: When removing the old assembly be very careful and try not to bump or touch anything that has been submerged in fuel. I barely bumped the plastic zip tie that went around one of the fuel pumps on the old assembly and it crumbled and fell right into the tank. I had to go fishing for 34 year old zip tie pieces.

[Flyman 27]

Thank you for the review.

Dan