12-26-2008, 03:48 PM | #1001 | |||
The [TST] Don
Admin
Join Date: Dec 2004
Location: Langhorne, PA
Member #3
My Ride: 07 Bugeye STi - 94 Supra iTrader: (6)
|
Quote:
Quote:
If that wont work do you have any other ideas on something that will work? I was thinking a custom hard line to at least get me past the manifold and compressor housing, and weld an AN fitting on the end to do the second half of the line in braided hose.
__________________
To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. | To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. Quote:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. | To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. Last edited by TROLL; 12-26-2008 at 03:50 PM. |
|||
12-26-2008, 04:08 PM | #1002 |
Tri-State Post Whore
Join Date: Oct 2005
Location: Philadelphia, PA
Member #989
My Ride: Toyota Celica GT-Two iTrader: (0)
|
Does the OEM fuel pump use a resistor pack to kick down the voltage to the fuel pumps at idle?
__________________
To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. The accelerator on my toyota has always been stuck to the floor.. To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. |
12-26-2008, 04:11 PM | #1003 | |
The [TST] Don
Admin
Join Date: Dec 2004
Location: Langhorne, PA
Member #3
My Ride: 07 Bugeye STi - 94 Supra iTrader: (6)
|
Yes there is a fuel pump ECU to switch between 9v and 12v, but this portion of the ECU's function is bypassed with the relays. Other functions like pump priming when the key is turned and shutting off in an accident are retained.
There are a lot of different ways to set up the dual pumps, but for now I will have both running in unison. The other option would be to wire in the second pump to activate at a certain threshold like 50% throttle or 10psi or something, triggered by the engine management. I may do this in the future but I haven't heard a strong argument for or against at this point.
__________________
To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. | To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. Quote:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. | To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. |
|
12-26-2008, 04:24 PM | #1004 |
Tri-State Post Whore
Join Date: Oct 2005
Location: Philadelphia, PA
Member #989
My Ride: Toyota Celica GT-Two iTrader: (0)
|
Good to know. Im using an oem supra pump on my car. They are very quiet compared to the annoying walbros and well worth the extra money.
However I noticed that with the pump running at full blast, the heater on, headlights, etc... I get too much of a dip in voltage at idle. Ive been thinking of wiring my resistor pack back in to help reduce the voltage draw from the pump at idle. I don't know how other guys do it with dual pumps, but I would think two if them running at all times would put a bit of a drain on your electrical system at times when the extra pump is really not needed.
__________________
To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. The accelerator on my toyota has always been stuck to the floor.. To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. |
12-26-2008, 04:33 PM | #1005 |
Tri-State Post Whore
Join Date: May 2006
Location: Glenside, PA
Member #1962
My Ride: 2001 Audi A6 2.7 Twin Turbo iTrader: (4)
|
Im not familiar with supra's, nor running a duel fuel pump system, but what would the gas milage be with this setup? Im assuming its gonna be pretty low. Im sure if you wired the second pump through the management system to kick in at 50% throttle like you said, it would help with the milage right?
__________________
--Eric '96 Mazda Miata | FM V-Maxx Coilovers | Jackson Racing Exhaust/Intake GONE To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. 01' Audi A6 2.7 Twin Turbo | Daily | NoMods |
12-26-2008, 04:41 PM | #1006 | |
Tri-State Post Whore
Join Date: Oct 2005
Location: Philadelphia, PA
Member #989
My Ride: Toyota Celica GT-Two iTrader: (0)
|
Quote:
__________________
To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. The accelerator on my toyota has always been stuck to the floor.. To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. |
|
12-26-2008, 05:15 PM | #1007 | |
The [TST] Don
Admin
Join Date: Dec 2004
Location: Langhorne, PA
Member #3
My Ride: 07 Bugeye STi - 94 Supra iTrader: (6)
|
Yeah the Supra Denso pumps do draw a lot of power but I was told it shouldn't be an issue unless I have a bunch of accessories and a system I want to run at the same time.
And Erik... the way a fuel system works is the pumps push the fuel to the front of the car, but the engine/injectors only use some of it, and the rest just circles back in the fuel return line and goes back into the tank. So mileage wont be affected at all, it'll just be cycling more fuel... the one drawback there is it raises the temperature of the fuel, and also the pumps wont last as long if they're running full time.
__________________
To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. | To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. Quote:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. | To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. |
|
12-26-2008, 05:32 PM | #1008 | |
Tri-State Post Whore
Join Date: May 2008
Location: Lincoln University PA
Member #7769
My Ride: 2012 Scion tC iTrader: (0)
|
Quote:
__________________
2012' Scion tC 6-speed M/T. |
|
12-26-2008, 09:28 PM | #1009 |
Tri-State Post Whore
Join Date: May 2006
Location: Glenside, PA
Member #1962
My Ride: 2001 Audi A6 2.7 Twin Turbo iTrader: (4)
|
ahh ok guys. i never really understood the fuel system entirely. I always wondered what the other hose was lol. my fault for not looking into that myself before asking the question. Thanks for the info
__________________
--Eric '96 Mazda Miata | FM V-Maxx Coilovers | Jackson Racing Exhaust/Intake GONE To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. 01' Audi A6 2.7 Twin Turbo | Daily | NoMods |
12-26-2008, 09:46 PM | #1010 |
Tri-State Post Whore
Banned
|
No they dont. Some car's systems use returnless fuel systems. The FPR is located on the fuel pump in the tank.
|
12-27-2008, 01:37 AM | #1012 | |
Vendor
Join Date: Mar 2007
Location: telford Pa
Member #3958
My Ride: the one in the back of the shop iTrader: (2)
|
Quote:
Not entirly true...most newer cars are returnless and the more fuel u have pumping at idle just starts to heat the fuel and the hotter the fuel gets, the easier it is to cavitate... Bryan will be OK with his set up but when you start to run dual pumps on race car set ups u typically only want one pump running at idle...
__________________
Philadelphia Area's Only Authorized and Factory Trained Pro Tuners for:HONDATA:UPREV:APEXI POWER FC:AEM:COBB:ECUTEK To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. |
|
12-27-2008, 11:48 AM | #1013 |
Tri-State Post Whore
Join Date: May 2007
Location: Warrington, PA
Member #4914
My Ride: '15 F150, '11 535xi, '95 M3, '04 Wrangler iTrader: (2)
|
SRT-4, GS300, etc.
The car looks to be coming along nice Bryan. All the hard work will be well worth it in the end.
__________________
-Chris 1995 M3 LS6 swapped 1991 Eclipse auto- 725whp - 5.93@122 1/8 || 9.14 @ 151 2006 Evo IX- 609whp-> (2.3L) || 11.19 @ 128 ->(stock 2.0) SOLD 1997 Supra- 670whp- 10.91 @ 139 SOLD |
12-27-2008, 12:08 PM | #1014 | |
TST Ruined My Life!
|
Did you go with two pumps to cut down of fuel pump whine? After driving blkz06's car his football sized single fuel pump was loud as all hell at idle.
__________________
'99 GSX - Sold '99 RS - Totaled '95 GSX - Totaled '97 GST - Sold '67 Camaro RS - Sold EVO 8 - To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. Quote:
|
|
12-28-2008, 05:25 AM | #1015 | |
Tri-State Post Whore
Join Date: Oct 2005
Location: Philadelphia, PA
Member #989
My Ride: Toyota Celica GT-Two iTrader: (0)
|
Quote:
The reason for two pumps is usually when people feel like they will make more power then one pump can supply.
__________________
To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. The accelerator on my toyota has always been stuck to the floor.. To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. |
|
12-28-2008, 05:36 AM | #1016 | |
The [TST] Don
Admin
Join Date: Dec 2004
Location: Langhorne, PA
Member #3
My Ride: 07 Bugeye STi - 94 Supra iTrader: (6)
|
thanks chris... gotta see if i can hang with that evo once i have things sorted out
and i bet blkz06 has an aeromotive pump or something external... he's supporting more hp than i am and those pumps are loud. the walbros are pretty loud for in tank pumps but dont compare to the aeromotive external pumps. the supra densos i'm running are quiet comparatively, and the reason i'm running 2 is because a single pump is said to only support about 500 whp comfortably, so running 2 ensures that i'll be able to sustain my fuel pressure without any worries. edit: wait a tick kevin... please tell me that you arent confusing a fuel pump whine with a supercharger whine... hahah. i'm assuming you're not, but i'm surprised you could hear the pump over that insanely loud blower...
__________________
To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. | To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. Quote:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. | To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. Last edited by TROLL; 12-28-2008 at 05:38 AM. |
|
12-28-2008, 06:30 AM | #1017 |
Hard Snarker
Super Moderator
Join Date: Apr 2008
Location: Philly
Member #7591
My Ride: 01 Audi TT 225, GVR-4 #72/1000, 91 TSi AWD iTrader: (16)
|
I actually run a Supra TT pump in my DSM because:
1. They are pretty easy to come by, 2. Can be had for less than a walboro of similar specs and 3. since they are OEM, the noise is pretty low-key, which I will attest to. Plus, it's cool saying that I have Supra parts in my car. haha
__________________
-Taylor DenOfDebauchery |
12-28-2008, 11:45 AM | #1018 |
Tri-State Addict
|
My wallbros are loud and the older they get the loader they became. Also when you get to 1/4 tank of gas it gets even loader. I will go back to toyota ones when its time to replace them.
|
12-28-2008, 12:54 PM | #1019 |
Tri-State Aficionado
|
The thing that makes walboros better then the denso supra pumps is that at higher pressure levels the more constant and more volume they flow. If you have the cover over the walboros they sound just like densos. I'm running twin hotwired walboros in my 3000gt and the noise doesn't bother me and isn't really that noticeable with the covers on them and the sound of my exhaust. I'm actually about to install a aeromotive a1000 inline pump to assist the twin walboros since I'm planning on running E85 this spring.
|
12-28-2008, 01:03 PM | #1020 |
Tri-State Post Whore
Join Date: May 2006
Location: Philly PA
Member #1961
My Ride: BMW E60 M5 V10 6 Speed --- Ducati Monster 696 iTrader: (4)
|
my vr4 has a single 255 and its not that annoying. However my del sol has a single 255 as well. and since the pumps practicly right under the seat its very annoying at times.
|
Bookmarks |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
troll's supra on 276 | Elliott18t | Spotted! | 11 | 05-02-2011 11:38 PM |
Troll's Supra on HellaFlush's FD New Jersey Coverage | downsmustang | Gallery | 12 | 06-20-2010 08:03 PM |
TROLL's Supra | Flaps720 | Spotted! | 3 | 03-26-2010 02:46 PM |
Exedy Twin Disc!! | RyanG | (Past Vendors) | 3 | 12-10-2007 03:13 PM |