walbro 255 question

[jhennessy]

Murrillo is currently tuning my mustang and has encountered a slight problem with the adequate delivery of fuel at or around 4800 rpm. They mentioned the possibility of the pump not having been installed correctly the first time by lethal - something about a sleeve needing to be installed over the outlet valve. I have 42 pound injectors and the rest of my upgrades are listed in my sig block below. My question is in ref to the specific pump I chose to use - has anyone else had problems with this particular pump? Are 255 lph not adequate for my application? any info appreciated

[white35th]

Murrillo is currently tuning my mustang and has encountered a slight problem with the adequate delivery of fuel at or around 4800 rpm. They mentioned the possibility of the pump not having been installed correctly the first time by lethal - something about a sleeve needing to be installed over the outlet valve. I have 42 pound injectors and the rest of my upgrades are listed in my sig block below. My question is in ref to the specific pump I chose to use - has anyone else had problems with this particular pump? Are 255 lph not adequate for my application? any info appreciated

It could be the install of the pump 255 should be more than enough for up to 6000 rpm. some of the walboroos are designed for a return system if this is the case you may need a euro focus pump or one desiged for a returnless system. At about 6500 rpm dynoing 440 hp I am at 90% duty cycle with the euro focus pump and a kb bap set at about 75% boost. :shane:

[txlen]

James...i saw this with my own eyes...by the time yer at say 5k the pump is only putting out 16psi...so either the pump is bad or as you were told that there's a "sleeve" that needs to be installed so the fuel line will fit correctly..that "sleeve" was prob in the kit when Lethal installed it the first time but they didn't know what it was for and prob tossed it....i didn't work today so i don't know the outcome of Roy dropping the tank and seeing what was wrong...and a correct 255lph pump will do what ya want to do with the setup ya have now...

[Vibora 03]

I don't think it was tossed out by lethal, I went with the focus pump installed at lethal correctly It solved my fuel problems it's when I went back to the other shop I encounterd a diffrent type of problem and It was'nt fuel related

[jhennessy]

I do recall Danny mentioning having to replace the groumet on the fuel tank because it was torn/damaged - either he did not which led to the Mustang running lean on the dyno and, therefore, resulting in piston damage, or he did and never installed the sleeve. Nonetheless, I spoke with Chris when I picked up my car on sat. and he said the groumet was torn and subsequently replaced and the problem was then solved. I will be returning on wed. in order for Murrillo to finish tuning the Mustang after I have broken in the new engine - I am hoping for around 435 to the wheels...we'll see!! Thanks for all the input

[white35th]

I do recall Danny mentioning having to replace the groumet on the fuel tank because it was torn/damaged - either he did not which led to the Mustang running lean on the dyno and, therefore, resulting in piston damage, or he did and never installed the sleeve. Nonetheless, I spoke with Chris when I picked up my car on sat. and he said the groumet was torn and subsequently replaced and the problem was then solved. I will be returning on wed. in order for Murrillo to finish tuning the Mustang after I have broken in the new engine - I am hoping for around 435 to the wheels...we'll see!! Thanks for all the input
Have you had any offers from leathal to help you get your car fixed or did they just wash their hands of you?

[jhennessy]

when I have time, I will be posting a four page document that details my interactions with lethal during the whole time in which they attempted the install the charger and later exercised denial of any responsibility...Long story made short, they tuned the Mustang without obtaining any kind of base tune from diablosport for my supercharger and only manipulated a few parameters on the tuner. They more than likely did not install the fuel pump correctly which led to the piston damage. When I did pick the car up that fateful friday night, they did not have a print out for me to take home illustrating the dyno results and they explained that by saying the printer was not working. the following morning the damaged was revealed while downshifting from 5th to 4th (thus elevating rpm) when the engine stalled as a consequence of piston damage. After several confrontations, Danny did say he would send my car to another shop in order to replace the pistons/rods for about 2600.00. So, I suppose that might be viewed as some form of compensation given the extremely reasonable price (appears to be labor only) but I could not risk lethal being responsible for my car again -

[white35th]

when I have time, I will be posting a four page document that details my interactions with lethal during the whole time in which they attempted the install the charger and later exercised denial of any responsibility...Long story made short, they tuned the Mustang without obtaining any kind of base tune from diablosport for my supercharger and only manipulated a few parameters on the tuner. They more than likely did not install the fuel pump correctly which led to the piston damage. When I did pick the car up that fateful friday night, they did not have a print out for me to take home illustrating the dyno results and they explained that by saying the printer was not working. the following morning the damaged was revealed while downshifting from 5th to 4th (thus elevating rpm) when the engine stalled as a consequence of piston damage. After several confrontations, Danny did say he would send my car to another shop in order to replace the pistons/rods for about 2600.00. So, I suppose that might be viewed as some form of compensation given the extremely reasonable price (appears to be labor only) but I could not risk lethal being responsible for my car again -
That sucks big time I was under the impression they were better people than that. :mad: sorry guy I feel your pain. ( I am on my second blown rebuild).
There is a new product comming soon that I am talking to the manufaturer about that is a automatic knock\detonation detector for the eight coil cars that can detect detonation on the first knock and retard the timing on an individual cylinder basis by the next time it fires. Should be avalible within a month or so. It will eleminate detonation damage to a motor. I think it is going to be in the 500-700 buck range. cheap insurance.

[jhennessy]

that sounds interesting...what manufacturer is this??

[Vibora 03]

when I have time, I will be posting a four page document that details my interactions with lethal during the whole time in which they attempted the install the charger and later exercised denial of any responsibility...Long story made short, they tuned the Mustang without obtaining any kind of base tune from diablosport for my supercharger and only manipulated a few parameters on the tuner. They more than likely did not install the fuel pump correctly which led to the piston damage. When I did pick the car up that fateful friday night, they did not have a print out for me to take home illustrating the dyno results and they explained that by saying the printer was not working. the following morning the damaged was revealed while downshifting from 5th to 4th (thus elevating rpm) when the engine stalled as a consequence of piston damage. After several confrontations, Danny did say he would send my car to another shop in order to replace the pistons/rods for about 2600.00. So, I suppose that might be viewed as some form of compensation given the extremely reasonable price (appears to be labor only) but I could not risk lethal being responsible for my car again -

[white35th]

Yeah it happens to the best and it is a hell of a bad shot to the owner. We are trying to get double the power the factory desiged these motors to do and it is not going to work all the time. You can only hope that the guy on the computer knows what he is doing and is not having a bad day. We(owner) stand there and say (cant you get a little more with another degree of timming and we pay for it.) My motor beat itself to death with detonation and only had about 4k miles on it. And it was tuned by one of the top shops in the country. I dont blame him for it as there are a lot of varibles involved. However if the damage was caused by a faulty install on the fuel pump I would say leathal should make it right. This is a large website and if it stands like this and does not get properly resolved it is going to cost them a lot of customers. In the long run it will cost them more than the fix on the motor.
Keep in mind this is a expensive hobby\sport.

[white35th]

that sounds interesting...what manufacturer is this??
Ive got it at work I will post tomorrow.

[Vibora 03]

I'VE ALWAY HAD GREAT SATISFACTION WHEN I GO TO LETHAL THEY WILL STAND BY THERE WORK AND NOT CHARGE YOU A REDICOULUS AMOUNT IN MAKING IT RIGHT

[white35th]

MY PERSONAL EXPERENCE WITH LETHAL IS GREAT I NEVER HAD ANY PROBLEMS WHEN I GO THERE THEY ALWAYS STAND BY THERE WORK THEY DONE ALL THE MODS ON MY OLD SALEEN WITH NOTHING BUT SATISFACTION AND I'M ALSO SURE THAT WHAT EVER HAPPENED TO YOUR CAR THEY DID'NT TELL YOU TO F-OFF LIKE THE OTHER SHOP THAT BLEW MY MOTOR THEY DON'T SHAKE THERE HEADS WHEN THEY MESS UP THEY OWN TO IT UNLIKE SOME PEOPLE I KNOW,AND I KNOW THAT THEY WER'NT GOING TO CHARGE YOU A REDICLOUS AMOUNT TO FIX WHAT IS WRONG.

They should have fixed it for free. when you run a car on the dyno fuel pressure and mixture should be continusly monitered and the moter shut down at the first sign of leanness.

[white35th]

They should have fixed it for free. when you run a car on the dyno fuel pressure and mixture should be continusly monitered and the moter shut down at the first sign of leanness.
You can buy a complete forged shortblock for the price they quoted

[Vibora 03]

You can buy a complete forged shortblock for the price they quoted
THAT IS THE PRICE OF THE SHORT BLOCK THEY QUOTED

[txlen]

THAT IS THE PRICE OF THE SHORT BLOCK THEY QUOTED


DUDE!!!!...IS YER CAP LOCKS BUTTON BROKE??..OR ARE YA YELLIN??? :lmao:

[white35th]

THAT IS THE PRICE OF THE SHORT BLOCK THEY QUOTED
Ok you dont have to shout. I still think they should have at least paid for some of the block. It was their mistake with the pump that caused the problem not the dyno.

[txlen]

the prob was the "sleeve" that was in the kit was not installed at all..so the fuel was leaking around the output of the pump so it went lean on the topend of the RPM range, Murillo does tunes in increments of around 200-250 rpm not jus do a pull and see how it ends up... we do that jus for reasons such as what happened here...Mike is very meticulous in his tunes...thats why he has a good reputation and has won and set world records both with fords and chevys...proof is "Buckwheat" the Z06 Vette...we went 9.93 @ 146 mph...and thats with a STOCK BOTTOM END!!..

[Vibora 03]

DUDE!!!!...IS YER CAP LOCKS BUTTON BROKE??..OR ARE YA YELLIN??? :lmao:
My bad caps are always on here at work due to purchase orders and such there off now :hello:

[Vibora 03]

the prob was the "sleeve" that was in the kit was not installed at all..so the fuel was leaking around the output of the pump so it went lean on the topend of the RPM range, Murillo does tunes in increments of around 200-250 rpm not jus do a pull and see how it ends up... we do that jus for reasons such as what happened here...Mike is very meticulous in his tunes...thats why he has a good reputation and has won and set world records both with fords and chevys...proof is "Buckwheat" the Z06 Vette...we went 9.93 @ 146 mph...and thats with a STOCK BOTTOM END!!..
Is that ur normal text or is someones nuts down ur throat :lmao:

[txlen]

My bad caps are always on here at work due to purchase orders and such there off now :hello:

lol..it's cool dude..jus messin with ya!!!.. :lmao:

[txlen]

Is that ur normal text or is someones nuts down ur throat :lmao:

jus talkin the truth..nuthin more...nuthin less.... :mick:

[white35th]

jus talkin the truth..nuthin more...nuthin less.... :mick:
That what makes the euro focus pump so good it fits in the bucket with no mods at all. Mine is working great even without drilling holes in the bucket.
Although I would say about 450-475 would be the limit on a stock bucket.

[jhennessy]

Ok, ok, ok...here's the deal - there is already enough testosterone being exercised about which shop produces the more thorough and exciting work when it comes to creating horsepower and making cars fast. Earlier I received a phone call in reference to all of this madness and will no longer discuss what or who is specifically responsible for the damage resulting in thousands of dollars of damage to my 'Stang. There is no sense in escalating the entertainment any further as the problem, whatever its origin, is now corrected. I worked with Lethal for nearly a year without any incident prior to the engine damage and experienced no problems prior to...Danny did offer just compensation as previously mentioned and I elected to pursue an alternative option. That is all - It is only appropriate that we all at least attempt to play nicely in this sandbox we call San Antonio and endeavor to move forward in a more positive direction, placing all ******** and speculation aside. What happened, happened and my wife and I paid the financial corollary - there is nothing more to discuss or debate...Life is again good and my wife no longer has to carpool to work.

[420_mustang]

I would like to say this. I was standing by this car on the dyno watching the fuel pressure gauge and it was solid. I find it funny how it could have been installed wrong when it was fine on the dyno. I even asked the tuner where is the boost gauge. He told me that the guy did want one :omg: And the car was taken and it let go on the street. This happens and thats the chance people take with stock motors. Louis's Saleen got hurt on someones dyno and lethal fixed it for him. Did he come on here and bash anyone about it? Nope lethal fixed it and he went on with life. My point? It happens. But to say the pump was installed wrong when I had a SNAP ON fuel pressure gauge in my hand and the fuel was good is a flat out lie! You are making Lethal look like the bad guys here but theres alot more to this. History is a lie if you only know one side. Happenes to everyone. Hell how many mod motors have I seen @ Lethal with the god tune with a burnt piston? Ive said my part and no one is perfect. Sorry for butting in, But I feel as a customer from lethal and holding the fuel pressure gauge for these guy when they needed a little help proves my point even more.

[TRM8ER]

This thread is done now due to the bashing of the two businesses involved in this topic:closed: