cat back prep and a product q

tyler · 06-27-2011, 12:28 PM

Hey guys just got a call from the muffler shop and they said my 3inch catback is ready for fitment. And after a few weeks of working 14hour days I finally have the $$ to start some upgrades. My car is a 90 gtu with the tii swap and only has a cold air intake so far. I know with the soon to be catback there will be some boost issues and as soon as the car gets back its going to sit for a week or so, that way I can finish my fiberglass project. While it sits I'm going to have the wastegate ported and install a fcd and mbc. Will that set up be safe untill I can afford to get a safc to tune it better?. Also what's better, the afc- neo r the safc 2, I've read mixed results about each?

85rx-7gsl-se · 06-27-2011, 12:32 PM

S4 or S5?

tweiss3 · 06-27-2011, 12:36 PM

s5

tyler · 06-27-2011, 12:46 PM

Yup the turbo has the bigger wastegate from the series 5

FerociousP · 06-27-2011, 01:01 PM

definitely need a FCD... a MBC will help build boost a little faster but it will still most likely fall off in high RPM. Depending on what your goals (or future goals) are, you might want to look into an Rtek. Performs the functions of an FCD and also provides other benefits like timing retard about 9psi, can handle larger injectors, etc. (so for a little extra you get a little extra)

tyler · 06-27-2011, 01:32 PM

I was looking at them a while back but few people on 7club could answer my questions without being pricks. There where a few who answered my first question but fell off after that. So would the rteck still need a fuel computer if i went the 2.x route? My goal for now is to run about 10psi on the stock turbo, thbat should hold me over untill I have the cash to upgrade the whole turbo.

tyler · 06-27-2011, 04:39 PM

Ok scratch that last question 2.1 has adjustable fuel maps

FerociousP · 06-27-2011, 04:48 PM

Quote:

Originally Posted by tyler

I was looking at them a while back but few people on 7club could answer my questions without being pricks. There where a few who answered my first question but fell off after that. So would the rteck still need a fuel computer if i went the 2.x route? My goal for now is to run about 10psi on the stock turbo, thbat should hold me over untill I have the cash to upgrade the whole turbo.

I ran a Rtek 2.0 for about 8 months on the stock turbo at 10-12psi with 550/750 injectors. Its was great and allowed me to nail my idle and richen up in higher rpms. Just sold it actually. its about $500 after you get a palm and cable (the downsides to the deal), you get alot of functionality for not much more than the cost of a FCD ($50) and a SAFC ($150-200).

Pete_89T2 · 06-27-2011, 06:40 PM

^Agreed. I've been running an Rtek 2.x on my S5 T2 since this past February and am very happy with it, given my limited mods (BNR Stage 1 turbo upgrades, 720cc injectors in all 4 holes, Supra TT Denso fuel pump, RB/Borla exhaust system).

Don't let hunting down a compatible Palm device scare you away - the old low-tech monochrome display palm m100 models with a couple of extra hot-synch cables can be had from a number of online resellers (new or refurb) for under $40 delivered. These work fine for tuning/logging, and since I don't use the palm for anything else, it's good enough for me.

tyler · 06-27-2011, 07:01 PM

Is it easy enough to pick up on? Meaning since I have zero uning expierence will I be able to pick up on it?

Pete_89T2 · 06-27-2011, 08:30 PM

Easy is a relative term, but the Rtek is pretty straight forward to work with. I would recommend working with an experienced tuner, preferably on a dyno where AFRs can be monitored while tuning to dial it in just right.

But getting started is simple - you get into the initial setup menu, check the boxes to match your car's FI setup (e.g., 550/550s, 550/720s, 720/720s). Assuming you're running the stock turbo at close-to-stock boost levels (say 10psi or less), and your fuel system is up to the task (good pump, correct fuel pressure and known/tested injectors) do nothing else with the Rtek and you're up & running with a safe map, and no more fuel cut headaches.

tyler · 06-27-2011, 08:33 PM

Sounds great and this ecu I've heard can easily work upto my 300whp goal so now I just need to find a palm and my ecu is set to ship out next week

Pete_89T2 · 06-27-2011, 08:42 PM

One other thing about these older Palm's & Rtek - to load the Rtek pocketlogger software and hotsync your palm, you'll need a PC that has an RS232 serial port to use with it. If you have nothing but newer PCs, that may be a problem since most made today don't include RS232 ports anymore. I'm using a circa-2005 Dell desktop PC to talk to the palm m100.

misterstyx69 · 06-27-2011, 08:46 PM

I'm running an Rtek with a New laptop windows 32 bit.
the 64 bit OS will not allow you to run the Palm software,

tyler · 06-27-2011, 09:09 PM

I'm a pc tech by trade so ill whip up and old desktop and throw xp on it just for the occasion

06-27-2011, 12:28 PM	#1
tyler Rotary Fan in Training Join Date: Jun 2011 Posts: 64 Rep Power: 14	cat back prep and a product q Hey guys just got a call from the muffler shop and they said my 3inch catback is ready for fitment. And after a few weeks of working 14hour days I finally have the $$ to start some upgrades. My car is a 90 gtu with the tii swap and only has a cold air intake so far. I know with the soon to be catback there will be some boost issues and as soon as the car gets back its going to sit for a week or so, that way I can finish my fiberglass project. While it sits I'm going to have the wastegate ported and install a fcd and mbc. Will that set up be safe untill I can afford to get a safc to tune it better?. Also what's better, the afc- neo r the safc 2, I've read mixed results about each?

06-27-2011, 12:36 PM	#3
tweiss3 Mazda Lover Join Date: Aug 2010 Location: Akron, Ohio Posts: 319 Rep Power: 15	s5 __________________ 2004 Mazda6 V6 5-spd - still waiting on money for a motor 1991 Mazda RX7 NA 5-spd - my new DD with 145,000 miles

06-27-2011, 01:01 PM	#5
FerociousP I-had-a-bad-experience... Join Date: Feb 2008 Location: M'boro Posts: 1,046 Rep Power: 19	definitely need a FCD... a MBC will help build boost a little faster but it will still most likely fall off in high RPM. Depending on what your goals (or future goals) are, you might want to look into an Rtek. Performs the functions of an FCD and also provides other benefits like timing retard about 9psi, can handle larger injectors, etc. (so for a little extra you get a little extra) __________________ '15 Juke Nismo '06 MX-5 GT SOLD '04 S Silver RX-8 GT Track Day Use SOLD '90 Black TII vert w/ Sprint RE stock port/turbo DD dyno (242.6whp@5500rpm @12psi 8psi@redline) and (250ftlbtq@4800rpm @13psi) SOLD '89 GTUs 6p TII SOLD, '87 sport SOLD, '79 SA stock SOLD '91 B2600i 4x4 w/ Rx-8 LSD SOLD

06-27-2011, 12:46 PM	#4
tyler Rotary Fan in Training Join Date: Jun 2011 Posts: 64 Rep Power: 14	Yup the turbo has the bigger wastegate from the series 5

06-27-2011, 01:32 PM	#6
tyler Rotary Fan in Training Join Date: Jun 2011 Posts: 64 Rep Power: 14	I was looking at them a while back but few people on 7club could answer my questions without being pricks. There where a few who answered my first question but fell off after that. So would the rteck still need a fuel computer if i went the 2.x route? My goal for now is to run about 10psi on the stock turbo, thbat should hold me over untill I have the cash to upgrade the whole turbo.

06-27-2011, 04:39 PM	#7
tyler Rotary Fan in Training Join Date: Jun 2011 Posts: 64 Rep Power: 14	Ok scratch that last question 2.1 has adjustable fuel maps

06-27-2011, 06:40 PM	#9
Pete_89T2 Lifetime Rotorhead Join Date: Apr 2010 Location: Elkton, MD Posts: 874 Rep Power: 16	^Agreed. I've been running an Rtek 2.x on my S5 T2 since this past February and am very happy with it, given my limited mods (BNR Stage 1 turbo upgrades, 720cc injectors in all 4 holes, Supra TT Denso fuel pump, RB/Borla exhaust system). Don't let hunting down a compatible Palm device scare you away - the old low-tech monochrome display palm m100 models with a couple of extra hot-synch cables can be had from a number of online resellers (new or refurb) for under $40 delivered. These work fine for tuning/logging, and since I don't use the palm for anything else, it's good enough for me.

06-27-2011, 07:01 PM	#10
tyler Rotary Fan in Training Join Date: Jun 2011 Posts: 64 Rep Power: 14	Is it easy enough to pick up on? Meaning since I have zero uning expierence will I be able to pick up on it?

06-27-2011, 08:30 PM	#11
Pete_89T2 Lifetime Rotorhead Join Date: Apr 2010 Location: Elkton, MD Posts: 874 Rep Power: 16	Easy is a relative term, but the Rtek is pretty straight forward to work with. I would recommend working with an experienced tuner, preferably on a dyno where AFRs can be monitored while tuning to dial it in just right. But getting started is simple - you get into the initial setup menu, check the boxes to match your car's FI setup (e.g., 550/550s, 550/720s, 720/720s). Assuming you're running the stock turbo at close-to-stock boost levels (say 10psi or less), and your fuel system is up to the task (good pump, correct fuel pressure and known/tested injectors) do nothing else with the Rtek and you're up & running with a safe map, and no more fuel cut headaches.

06-27-2011, 08:33 PM	#12
tyler Rotary Fan in Training Join Date: Jun 2011 Posts: 64 Rep Power: 14	Sounds great and this ecu I've heard can easily work upto my 300whp goal so now I just need to find a palm and my ecu is set to ship out next week

06-27-2011, 08:42 PM	#13
Pete_89T2 Lifetime Rotorhead Join Date: Apr 2010 Location: Elkton, MD Posts: 874 Rep Power: 16	One other thing about these older Palm's & Rtek - to load the Rtek pocketlogger software and hotsync your palm, you'll need a PC that has an RS232 serial port to use with it. If you have nothing but newer PCs, that may be a problem since most made today don't include RS232 ports anymore. I'm using a circa-2005 Dell desktop PC to talk to the palm m100.

06-27-2011, 08:46 PM	#14
misterstyx69 .drives like MrMagoo! Join Date: Feb 2008 Location: Smiths Falls,Ontario Posts: 198 Rep Power: 18	I'm running an Rtek with a New laptop windows 32 bit. the 64 bit OS will not allow you to run the Palm software,

06-27-2011, 09:09 PM	#15
tyler Rotary Fan in Training Join Date: Jun 2011 Posts: 64 Rep Power: 14	I'm a pc tech by trade so ill whip up and old desktop and throw xp on it just for the occasion