R&D automotive FWD

[TurboAnything]

After a long wait i finally got to run the car on the rollers. I have only changed 2 small things. I took some time and me and a friend made a T-3 manifold and i installed a Walbro 400 pump. The last time i was on this dyno i was out of fuel with my 255lph at 400hp. The first run i made 457hp at 26-27psi with a 12.4afr. After 10 or so runs and 3 more psi of boost i was at 489hp at 30psi. I turned the boost up to 32-33psi and AFRs dropped to 13.0 and i was at 90% duty cycle on my 1600cc white tops.

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It looks to me like the Walbro 400 is done at 500hp on E-85. I think i mite just put a second pump in and try again in a few weeks. And another strange thing is my torque curve is really flat. I really was hoping for over 500hp but its a mustang dyno.

R&D automotive FWD talon - YouTube
R&D automotive fwd talon - YouTube

 

[airmail96]

Mustang Dynos can be a heartbreaker. Good power though loooking forward to what you can do with dual pumps looks like there is still more in it.

 

[Pipnorcali]

Nice power does it ever get traction..

 

[TurboAnything]

Car pulls very hard feels like a lot more then 490hp. I get traction in 4th but 3rd is still fun even spinning the whole time. 1st and 2nd are useless.

 

[richard33]

Car pulls very hard feels like a lot more then 490hp. I get traction in 4th but 3rd is still fun even spinning the whole time. 1st and 2nd are useless.

nice numbers! Spinning in 3rd will get old really quick trust me! Probably around the time you lose to a much slower car or run 14s at the track spinning

 

[TurboAnything]

On a smaller turbo S258 i ran 13.1 spinning almost as bad. I think if went with my street tires i would be in the low 12 area.

A update on the pump i just got off the phone with Walbro and was told to remove the Walbro 400 pump immediately it will quickly die when run with E85.

 

[turboglenn]

great numbers.. I'll admit FWD was fun in the 430hp range but just as you said 1st and 2nd were useless, third was a white knuckle , hold on for life kinda ride and then 4th hooked and i had a quaife LSD and large tires on the car (225/55/16) I finally got so sick of the not moving out and just showing off of a high HP FWD and went AWD swap, was the best thing i've done to the car in ages (since the haltech and T3 manifold anyway)

 

[killercolt]

get rid of the walbro 400. it is not meant for fuel injection car and boost. e85 will not kill it. i believe it is for carburetor car. i tuned a car for a friend a few weeks ago and it did the same thing as your car. it maxed out at 470hp. he switch to a walbro 255 and it made 500hp with no problem. it was on e85 too.

 

[TurboAnything]

get rid of the walbro 400. it is not meant for fuel injection car and boost. e85 will not kill it. i believe it is for carburetor car. i tuned a car for a friend a few weeks ago and it did the same thing as your car. it maxed out at 470hp. he switch to a walbro 255 and it made 500hp with no problem. it was on e85 too.

No the walbro 400 pump is for fuel injection and is good for up to 90psi. I made 400hp on a 255 and 490hp on a walbro 400. I talked to walbro direct and was told that the pump is manufactured with parts that are not E85 safe.

 

[9!'clipseDOHC]

I talked to walbro direct and was told that the pump is manufactured with parts that are not E85 safe.

This is good info to know. So what are your plans with the car?

 

[killercolt]

you need to looks else where if you are only making 400hp with a walbro 255 on e85. i made 538hp on a single walbro 255 high pressure which is was not rewire. i was running e85. i already tuned 3 other cars making 500hp-535hp on e85 with a single walbro 255. all 3 did not have rewired walbro 255. rewiring the pump does help to make more power on the walbro 255.

the walbro 400lph is a over rated pos. my friend had fuel delivery issue with it. he upgraded to a bigger fuel line. bigger stainless fuel filter element. he turn the fuel pressure up on the fuel regulator. he rewire the pump. we had the fuel pressure set at 52psi. during the dyno pull, the fuel pressure goes up to 65psi and starting droping to 52psi after 6500rpm. he was running 28psi on the dyno. ideally with a 1:1 aeromotive fuel regulator, he should see 80psi of fuel pressure with fuel pressure set at 52psi.


the deatschwerks 300lph fuel pump is suspect too. we had similar problem like you but rewiring it help pushed the power over 500hp mark on e85.


so far, the bosch 044 is the try and proven monster at the shop. it is rated at 300lph. i made 625hp with it all day long without any fuel delivery issue. i am also on e85.

 

[TurboAnything]

What dyno are you running on?

 

[bastarddsm]

Why did you quit the pulls so early? Looks like it should have made more if you had wound it to 8000.

 

[TurboAnything]

I did a few pulls to 8000rpm but it was peaking around 7000rpm so i figured why push it.

 

[bastarddsm]

I did a few pulls to 8000rpm but it was peaking around 7000rpm so i figured why push it.

That's odd I'd figure with those cams and intake it should peak higher. What valve springs and hotside is on your turbo?

The way the tq falls quick at 7000 makes me think valve float.

 

[TurboAnything]

The power oscillates up and down with the wastegate opening and shutting above 7500rpm. It is very strange you can hear it as it is doing it. The fix is easy a Tial 44m to replace the Ebay 38mm.

Here you can see the power coming back up

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[bastarddsm]

Lol, that would make it do that. Have you tried running a mini regulator into the top port?

 

[turboglenn]

Are you running an EBC? MY greddy profect when the "boost response" knob is set to "sharp" will oscillate the gate audibly... when wide open it's like Bap.....bap.....bap....bap and boost bounces with it by a psi and a half on my logs

 

[killercolt]

What dyno are you running on?

We are using a Dynojet.

I want to say that it is a myth Mustang Dyno and Dyno Dynamic Dyno make less power. We get people came all time thinking they can make more power on a Dynojet after seeing low number on the other two mentioned brand. After they see the same or less power on the Dynojet, they get angry and storm out like it is our fault. . We like reporting uncorrected hp and tq. STD correction always give more power. SAE correction can report more or less depending on the temperature. On a cold day, SAE corrected hp and tq can be less than uncorrected corrected hp and tq. On a warm or hot day, SAE corrected hp and tq will be more than uncorrected hp and tq. Uncorrected is what you actually see on the roller.


Dynojet dyno can not be calibrated by the owner. Other brand require calibration. If it is not done right, you can get more or less power. I personally like Dynojet because it is more consistent from dyno facility to dyno facility and day to day.


Get you fuel issue fix. You go a lot more to make. You power is till climbing.

 

[TurboAnything]

We are using a Dynojet.

I want to say that it is a myth Mustang Dyno and Dyno Dynamic Dyno make less power. We get people came all time thinking they can make more power on a Dynojet after seeing low number on the other two mentioned brand. After they see the same or less power on the Dynojet, they get angry and storm out like it is our fault. . We like reporting uncorrected hp and tq. STD correction always give more power. SAE correction can report more or less depending on the temperature. On a cold day, SAE corrected hp and tq can be less than uncorrected corrected hp and tq. On a warm or hot day, SAE corrected hp and tq will be more than uncorrected hp and tq. Uncorrected is what you actually see on the roller.


Dynojet dyno can not be calibrated by the owner. Other brand require calibration. If it is not done right, you can get more or less power. I personally like Dynojet because it is more consistent from dyno facility to dyno facility and day to day.


Get you fuel issue fix. You go a lot more to make. You power is till climbing.

I can tell you on Devin Shultz car he made like 700hp on the Mustang dyno he ran. He then took the car to a local subaru shop P&L witch has a dynojet and the car made 797hp.

 

[TurboAnything]

Well i broke my LSD last night it is locked left to right. I am sooo done with this FWD. I am going to swap everything to my AWD even if that car needs a ton of bushings and ball joints and other maint stuff to be ready for 500hp.

 

[killercolt]

I can tell you on Devin Shultz car he made like 700hp on the Mustang dyno he ran. He then took the car to a local subaru shop P&L witch has a dynojet and the car made 797hp.

i hear about this all the time, but i always see it to be untrue. i never been on a mustang dyno, but i been on a dynojet awd dyno and a dyno dynamic dyno with my old 92 awd talon. I made 10hp more on a dynojet awd dyno (@ batlground) than a dyno dynamic dyno (@ dyno4mance). i would not think that is significant enough to worry about.

try a bosch 044 and good fuel stainless steel filter element if possible. the jayracing aka deatchwerks 300lph is pretty proven so far for us. you will have to rewire the pump to get the most of it. make sure you don't have some weakass battery either. i am running a optima blue top. it is heavy (65lb) as crap but it fixed my weak ignition problem.

 

[1SloEvo]

What do you know...another dyno war!

Who cares which one reads more? It's a tool for tuning to see how a car improves in power and torque. End of story.

As for going with the DW300 fuel pump, locally I've only seen them be able to support another 10-20whp on E85 compared to the walbro 255lph pump. A waste of money if you ask me. At any rate, I'm sure the OP will make sure fuel is not an issue anymore if swapping everything over to the AWD platform!

 

[turboglenn]

What do you know...another dyno war!

Who cares which one reads more? It's a tool for tuning to see how a car improves in power and torque. End of story.
!

+1110000000000000000

numbers mean very little when it comes to getting down the track either ahead or behind some one with numbers similar to yours..

Personally i have seen differences in readings on the samecar from Dynojet to Mustang units. Here's locally i dyno on a mustang dyno, the numbers are cool for general BS'ing at the hang out spot and being able to say "it put down "X" power" but really when it comes down to lining up a race, i'm more "affraid" of some one who says "i've got time slips for 11.70's" comparedto the guy who says "it dyno'd out to 580hp"

I had a friend with a Rousche mustand (supercharged) and it was over 650 to the wheels yet he couldn't manage much better than a low 13 - high 12 second 1/4 mile because A.) no slicks in street trim B.)Even in third he couldn't step on it without kicking the ass end out sideways on street tires ( around here moire people are concerned with what your can can do in "Street trim" as compared to what you can do "with slicks and race gas"

Anyway, i knew it was only a small window of time before you were fed up with FWD and made the swap.. I can't believe i lived with fail-wheel-drive for so long (mainly i didn't have a choice)

MY dyno talk isn't to dog on anyone, just saying what's more important in my eyes and most around here compared to the numbers you always hear tossed around or posted up.. dyno queens are one thing, putting it to the ground is the real fun in having that power

 

[killercolt]

+1110000000000000000

numbers mean very little when it comes to getting down the track either ahead or behind some one with numbers similar to yours..

Personally i have seen differences in readings on the samecar from Dynojet to Mustang units. Here's locally i dyno on a mustang dyno, the numbers are cool for general BS'ing at the hang out spot and being able to say "it put down "X" power" but really when it comes down to lining up a race, i'm more "affraid" of some one who says "i've got time slips for 11.70's" comparedto the guy who says "it dyno'd out to 580hp"

I had a friend with a Rousche mustand (supercharged) and it was over 650 to the wheels yet he couldn't manage much better than a low 13 - high 12 second 1/4 mile because A.) no slicks in street trim B.)Even in third he couldn't step on it without kicking the ass end out sideways on street tires ( around here moire people are concerned with what your can can do in "Street trim" as compared to what you can do "with slicks and race gas"

Anyway, i knew it was only a small window of time before you were fed up with FWD and made the swap.. I can't believe i lived with fail-wheel-drive for so long (mainly i didn't have a choice)

MY dyno talk isn't to dog on anyone, just saying what's more important in my eyes and most around here compared to the numbers you always hear tossed around or posted up.. dyno queens are one thing, putting it to the ground is the real fun in having that power

so what is your excuse for running 11.7s with 438hp and 398tq? that is kinda slow for that much power and tq on a mustang dyno. have you ever question the accuracy of the mustang dyno? assuming that dynojet reads more, that will put you some where between 460-480hp and 420-440tq on a dynojet. my friend went 10.6s in his 1g awd when he made 500hp and 450tq on a dynojet. his car was converted to fwd to dyno too.

i always tell people that if they can not put down good number on a dyno, their cars will suck ass at the track. not everyone can be great driver but at least know your car has the potential to make you look like a good driver.


going back to this post. if a walbro 400 can not make 500hp on a komet's mustang dyno and my frend dynojet, it means that it sucks.