Getting the most out of your Apexi S-AFC= Stock MAF honeycomb removal - Page 3 - 3000GT/Stealth International Message Center

BlackStealth · 08-07-2003, 06:54 AM

Hey Innovator which fuel rewire mod do you have on your car? Does your car still utilize the factory resistor&relay for low load/low voltage to the fuel pump? I just did the Erik Gross rewire mod with stock guage wire and lost 70hp to the wheel cuz my car is running way to rich now. Nothing the SAFC can't fix by leaning it out. Again, knowing how your fuel pump is wired is important...

Fascinating discovery. I wonder if I just wasted money on the MAFT + Z06 MAF that I haven't installed yet.

Innovator · 08-07-2003, 06:57 AM

I have it wired so it has full battery voltage all the time. It does run richer at idle, but as you said, the AFC fixed that.

I don't trust anything that could potentially reduce fuel if it malfunctions.

DJAuggie · 08-07-2003, 06:59 AM

Quote:

Originally posted by Innovator
I have it wired so it has full battery voltage all the time. It does run richer at idle, but as you said, the AFC fixed that.

I don't trust anything that could potentially reduce fuel if it malfunctions.

I was under the impression that the Supra Fuel Pump in its stock form is enough to flow the 555s without rewiring or anything?

Innovator · 08-07-2003, 06:59 AM

Quote:

Originally posted by Imp Pwr Online
Makes absolute sense. Why? Because I did it 6 times and have first hand experience. I did it, I witnessed it. Every time after pulling honeys the car would act up. Not right away...but eventually it would. Sometimes sooner than later but always did. I do't think a mod that requires pulling the fuse to reset to ECU is a worthwhile mod. More of a jerry rig workaround until you get proper equipment

I never said you'd have to pull the fuese. i just said you could if you ever had too....

I really don't see a single reason why this would cause a problem, now or in the future... Less timing will save the engine IMO.

Everybody has their opinion however.

Innovator · 08-07-2003, 07:00 AM

Quote:

Originally posted by DJAuggie

I was under the impression that the Supra Fuel Pump in its stock form is enough to flow the 555s without rewiring or anything?

It is, but it flows significanly more with more current. You don't need it as it stands with your current mods...

DJAuggie · 08-07-2003, 07:02 AM

Quote:

Originally posted by Innovator

It is, but it flows significanly more with more current. You don't need it as it stands with your current mods...

OK... So. Do you base what fuel pump depending on what injectors? Another words, because I am dropping in 555ccs with the STOCK turbos, do I shop for the same "pump" as if another person with the same fuel mods with DR500s?

92vr4ny · 08-07-2003, 08:25 AM

This is a good mod when you not heavily modded. After roughly 400whp the signal is not too accurate. So the LS1 MAF-T would still benefit you if you are running DR500's and supporting mods. Good find Rick.

Innovator · 08-07-2003, 08:25 AM

Quote:

Originally posted by DJAuggie

OK... So. Do you base what fuel pump depending on what injectors? Another words, because I am dropping in 555ccs with the STOCK turbos, do I shop for the same "pump" as if another person with the same fuel mods with DR500s?

I wouldn't change your injectors until you get new turbos. There is absolutely no reason to.

DJAuggie · 08-07-2003, 08:38 AM

Quote:

Originally posted by Innovator

I wouldn't channge your injectors until you get new turbos. There is absolutely no reason to.

No reason? Phalse and other members have gotten into the mid 12s @ 107-110 with BPU + 450 or 555 injectors + AFC. The increase fuel + timing helps out the trap and top end of the car.

Also, it is a really good safety precaution to run at 15+PSi. You can also run a bit more than 15 and into the ~16-17PSi range or whatever the stock turbos can spike at. Moreover, you can lean/rich out and save some MPGs on the highway. Not bad considering it can be done for under $400 depending on if ya buy new or used, brand, etc.

Also, it's a good idea for people like me, that don't want to dive into the world of upgraded turbos for the reasons of stupidity and financial reasons. How many people do I talk to drop $$$s into their car and have no friggin clue what they are doing. I can really go into this further but I just want to learn before I do things. I don't want to be a person that drops in upgraded turbos with the fuel mods and not even know how to tune my AFC or anything about my car.

It's prolly good idea to do things in small increments financially. I can't drop $4K into a turbo upgrade but I can do all the supporting mods first and then just drop in turbos when I have the financial means to do so.

Everyone has their own opinion tho.

-Shawn

DJAuggie · 08-07-2003, 08:43 AM

Quote:

Originally posted by Innovator
As I said, 475 at the wheels is proof

That's really impressive. I wonder what difference it would have made using various other turbos. If you had the time/money, it would be interesting to see what your stock turbos (if you still have them) and your IHI ball bearing turbos would do.

Also, this was done on the 15Gs? Why did you swap the 17Gs/ball bearing turbos out?

Still damn impressive. It gets me excited to know what potential the car has and all the things I can still do to it.

I wonder what you car can run now if you were trapping 125MPH before.

-Shawn

08-07-2003, 06:57 AM	#22 (permalink)
Innovator Blowing hot air Join Date: Aug 2001 Location: Albany NY Trader Rating: (6)	I have it wired so it has full battery voltage all the time. It does run richer at idle, but as you said, the AFC fixed that. I don't trust anything that could potentially reduce fuel if it malfunctions. __________________ Broadway Auto Clinic..Home of Big Dicks Performance *Rick@broadwayautoclinic.com* 518-434-4077 http://www.BroadwayAutoClinic.com http://www.BigBoysFastToys.com 19T turbos from Blouch TurboDR Stage Three Heads Pauter connecting rodsWiseco Forged PistonsNew OE forged crank Nissan connecting rod bearings32X15X3.5 FMIC and 2.5" hardpipesTANABE SUPER MEDALION RACING HYPER exhaustcustom downpipeACPT 1 piece drive shaft RPS Stage Three Clutch Emange Blue and EO1 piggyback Koyo 2" aluminum radiatorDenso 660 injectors Greddy 60MM gauges in every flavorFJO widebandDawes Twin AF gageswater cooled oil cooler H&R lowering springs and ne OE struts5Ziggen 18X8.5 FN1OC Gunmetal wheelsGoodyear F1 tires**etc,etc

08-07-2003, 08:25 AM	#27 (permalink)
92vr4ny Snake Eater! Join Date: Jan 2001 Location: NY (about 45mins from Albany) Trader Rating: (1)	This is a good mod when you not heavily modded. After roughly 400whp the signal is not too accurate. So the LS1 MAF-T would still benefit you if you are running DR500's and supporting mods. Good find Rick. __________________ Mike T. 1992 Silver VR4 Future mods (not in any order)... Stage 2/3 Heads, Rear Sway Bar, CFDS, LSD, Rebuilt tranny AGAIN (thinks to Mitsu), Clutch, CF Hood, Propane (already bought along time ago), Pre-Cat Eliminators, AEM Stand alone, Repainted, Big Brake Kit, Rims... think I could get close to 500WHP out of that on DR500s?http://www.penguinhosting.net/~matt/public/picture2/mycar/vr-4/ Vipers Beware!

08-07-2003, 06:54 AM	#21 (permalink)
BlackStealth Verified Seller Join Date: Apr 2000 Drives: 93 RT/TT Trader Rating: (146)	Hey Innovator which fuel rewire mod do you have on your car? Does your car still utilize the factory resistor&relay for low load/low voltage to the fuel pump? I just did the Erik Gross rewire mod with stock guage wire and lost 70hp to the wheel cuz my car is running way to rich now. Nothing the SAFC can't fix by leaning it out. Again, knowing how your fuel pump is wired is important... Fascinating discovery. I wonder if I just wasted money on the MAFT + Z06 MAF that I haven't installed yet.

Sponsored Links
3000GT/Stealth International Message Center Advertisement