evo fuel pump

[tbehling]

my friend has an evo 8, he recently upgraded his fuel pump, and said that his stock fuel pump would be better than my stock one. Anyone know if it would bolt up and if pumps at a higher rate than a 2g turbo

 

[xrobbx03]

sorry to jump in but what would the recommended boost level be for basically the same set up as above but with:

255lph walbro fuel pump
550cc Injectors
Aeromotive Fuel Pressure regulator
Greddy 24r Front Mount
Apexi AFC Neo

 

[daren_p]

The reason you find different numbers is because every car is abit different. Whats safe for one car may not be for another. The proper & what you both should be doing is using a logger to see what is safe for you.

To the origional poster, get that stock fuel pump rewired if you haven't already. Once you've done that I would say 14 psi max. 12-13 should be safe, but there is no guarantee it will be. Just as a reference I could see 107% injector duty cycle on the stock fuel system when I ran my evoIII at 15 psi.

To the second poster, if you have no logger I would probably recommend the same as you have no idea what going on & the more mods you do, the more the chance something could be wrong. If you have a logger, turn it up to where you want (within reason) or what ever your able till untill you start to knock. You should be able to run 18-20 once you have a logging method.

 

[JayRolla]

To the OP if you dont have a logger dont go past 12psi. Get the pump rewired you may get 14psi like daren said. Get a logger ASAP.

Second poster you say you have a afc and 550's. What are your hi settings at? What is your FP set too? If you dont have a logger I would not drive that car till you do, injectors are going to make you run like crap.

 

[romeen]

sorry to jump in but what would the recommended boost level be for basically the same set up as above but with:

255lph walbro fuel pump
550cc Injectors
Aeromotive Fuel Pressure regulator
Greddy 24r Front Mount
Apexi AFC Neo

daren p is right. I basically have the same setup as you. But the tune of the car, health of the motor, octane rating of gas in your area, etc all affect how much boost you can run. There is no magic boost number that can be given for a certain fuel system, etc.

FWIW, I can safely run up to 18 psi with my EVO 3 and 550's on 92 octane with a SMIC. If I let it go to 20 psi I can actually feel timing being pulled.

 

[daren_p]

I am in no way implying to run this much boost but to the second poster for reference I was able to run 22 psi on my evoIII on pump 94, this is of course with all the proper supporting mods. If you have a logger & are able to run 20+ psi I would recommend a set of ARP headstuds to be on the safe side. The stock comp headgasket is still good for a few more psi. With that kind of boost you will also probably be getting close to maxing out those 550's depending on what fuel you run.

 

[matthewdesigns]

For the OP: My setup is similar to yours (check my profile...but I do have an upgraded SMIC), and I run 16lbs daily on my E316G with no fuel mods. I do have a logger, though, and like everybody else has said, get one. With it, I know that if I go over 16lbs my timing never gets back to a safe place (15*) on WOT runs. I can't count knock or IDC with my non-eprom ecu, so I really rely on the timing for safety. At the very minimum you should be keeping an eye on that number.

 

[kenamond]

I have a FPB28 which flows close to the same as an evo3, and I lean out past 6k at 15psi with rewired stock pump, stock injectors, stock exhaust, and stock SMIC. I'm at 7500ft elevation, so the PR at 15psi boost up here is 2.27, where the PR at sea level for 15psi boost would be 2.02, so it's a bit different. Another data point for ya, though.

 

[daren_p]

For the OP: My setup is similar to yours (check my profile...but I do have an upgraded SMIC), and I run 16lbs daily on my E316G with no fuel mods. I do have a logger, though, and like everybody else has said, get one. With it, I know that if I go over 16lbs my timing never gets back to a safe place (15*) on WOT runs. I can't count knock or IDC with my non-eprom ecu, so I really rely on the timing for safety. At the very minimum you should be keeping an eye on that number.

Are you saying that if you run more then 16 psi you get less then 15 deg timing & at 16 psi you are seeing 15 deg at redline? If so I'd make sure your logs look good as 15 deg advance seems to be on the low side for the amount of airflow you would be seeing at those boost levels. I would expect to see more around the 18 mark, atleast.

 

[lordnikon_04]

I don't mean to jack the thread but what kind of dataloggers do you guys suggest for a 2G?

 

[EvolvingGST]

I don't know if it is still there but RRE used to have a chart they did with their fuel systems on simuliar turbos and octane readings. But I say just keep it stock or get some 550s/680s and a 190 lph or a 255 high lph w/ fuel reg.

If you want a fast car I suggest atleast 680s and 255 high lph and 1:1 FPR. The new DSMer setup.

If you want something that will work get you into low 12s maybe 11s on race gas then you should be fine with 190 lph and 550s. Which has gotten people in the low 11s its just a bi***. It is actually a very old school setup.

Edit: You also need a logger and fuel control. If you want both combined get DSMlink and then you can even get 1000+cc injectors. Decide what your goal is and post back and we will answer what you need. Also give us a budget.

 

[xrobbx03]

What I wanted to accomplish was low to high 11s at the track preferably high 11s. It my daily driver so running 18psi would be fine for me even maybe a little less, I just wanted to know what my ranges were. If anything i would push it out to 20psi for the track.

 

[daren_p]

What I wanted to accomplish was low to high 11s at the track preferably high 11s. It my daily driver so running 18psi would be fine for me even maybe a little less, I just wanted to know what my ranges were. If anything i would push it out to 20psi for the track.

Is this on street tires or slicks? & what turbo do you plan on making you 11 second goal with? If its the evoIII you have listed on your wish list, I think you need to change your goals. There is noway you are going to run 11's on 18-20 psi on an evoIII & thats on slicks. On street tires & that boost you will be looking at 13's if you can drive, fwd is not like awd. If you find an awd with a similar setup, pretty much take their 1/4 time & add a second to it & thats where you'll be.

To hit 11's on a fwd a more realistic setup would be slicks, atleast a 50 trim, cams, race gas & mid 20's boost.

 

[daren_p]

I don't mean to jack the thread but what kind of dataloggers do you guys suggest for a 2G?

DSMLink

 

[Zmann42087]

^^^ Definitely agree... DSMlink is the best way to go. However, if you don't have $600 to drop for link, pocketlogger is pretty good too.

 

[xrobbx03]

didnt realize it takes all that I will stick to the setup I mentioned and just see what happens.

As for a logger what do i need piece by piece. I am looking for the cheapest way to do it.
I am going to get DSMlink down the line but i need a logger for right now.

 

[romeen]

As daren p touched on, traction will be a significant issue with a FWD. Especially with a quick spooling turbo like the EVO 3. I have this turbo on my '99 GS-T. If running anything above 16-17 psi I really have to use a controlled throttle application. If I just mash the gas like the AWD guys (lucky them!) then 1st and 2nd are almost worthless due to wheelspin and even 3rd will spin some. This is with lowering springs, upgraded shocks, sticky tires, poly motor mounts, lsd inserts.

I didn't see any suspension upgrades in your profile or in your wish list. Without these you won't be able to take advantage of all the extra power. Your stock clutch isn't going to last long at all either. So before you get too caught up in more power upgrades you might want to start thinking about these things as well.

It's easy to make more power in a turbocharged car. Getting that power to work for you in a FWD will be the hard part.

Here is a link to help you with choosing a logger: http://www.dsmtuner.com/forums/showthread.php?t=230375

 

[ILLiCliPSE]

i run 14psi on my agp t28 w/ the stock fuel system. i wouldnt run any more than that.

 

[xrobbx03]

As daren p touched on, traction will be a significant issue with a FWD. Especially with a quick spooling turbo like the EVO 3. I have this turbo on my '99 GS-T. If running anything above 16-17 psi I really have to use a controlled throttle application. If I just mash the gas like the AWD guys (lucky them!) then 1st and 2nd are almost worthless due to wheelspin and even 3rd will spin some. This is with lowering springs, upgraded shocks, sticky tires, poly motor mounts, lsd inserts.

I didn't see any suspension upgrades in your profile or in your wish list. Without these you won't be able to take advantage of all the extra power. Your stock clutch isn't going to last long at all either. So before you get too caught up in more power upgrades you might want to start thinking about these things as well.

It's easy to make more power in a turbocharged car. Getting that power to work for you in a FWD will be the hard part.

Here is a link to help you with choosing a logger: http://www.dsmtuner.com/forums/showthread.php?t=230375

I already upgraded my clutch, forgot to put that in my parts list. I did it a little while back when the original clutch in the car when i bought it went.

 

[90gst_sean]

Run 20psi on the stock fuel set up and you'l knock your engine into oblivion.

I had a evo 3 creeping so bad I couldn't run it past 5000rpms or the engine would cut out and we'd be in knock city. Salved most that with a quick port, 255HP/550's, and a little more boost on the controller.

 

[nightspeed87]

I would buy at least a 190 lph asap, id wouldnt run more than 12 psi on stock fuel system with a evo3, not worth the risk. But even with a fuel pump, on stock injectors i without the fuel pressure increase i wouldnt push it past 15psi. Hope you have good luck getting the boost low and keeping it there because evo 3s are prone to creep.

 

[xrobbx03]

I dont even have this setup yet I am in the process of buying everything. I was looking for reference so once everything gets in I can just go install everything and know my limits beforehand so I am not looking later when it could be to late.

 

[pooker]

If I was you I would wait till I had everything, running an evo 3 16g without any supporting mods could just cause problems..

 

[Dragon TalonTsi]

I have an E3 Big 16G on mine, and I can remember on my stock Fuel system, and yeah, 16 lbs. was almost too much for it. I would lean out, but don't quote me on the exact numbers. Look in my profile now, and see what mods I have now. 20 lbs daily... and lovin' it...

 

[xrobbx03]

If I was you I would wait till I had everything, running an evo 3 16g without any supporting mods could just cause problems..

I dont think alot of you are understanding me.

I do not have the EVO 3 16g yet. It is going to be the last thing I get.

My fuel system is being done now I am waiting on some of the parts to come in. I just bought a greddy front mount which will be coming at some point.

I would say in 2 weeks I will have everything installed with a logger. Then i will buy the turbo. Like I said i was looking for reference now so I wouldnt have to wait on post later one when I do get it and get it installed.

 

[oplix]

I'm running stock fuel with no exhaust and smic evo 3 at 15psi atm. Not saying it's safe in the long run but it runs nicely and the horsepower scales all the way to redline.