Should i go turbo or stay n/a.
11-22-08, 10:33 PM
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Should i go turbo or stay n/a.
I got an 88 gxl n/a. All i have done is built a cold air intake and bought a short throw shifter. The car is stock. What i want to know is, should i invest my money into a n/a car, or should i save up my money to rebuild the motor for a turbo set up. Which will give me more power for less money. I want something with atleast 230+ horespower. Please no flaming. Just good tips. Best argument wins my decision. 
11-22-08, 10:38 PM
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Well to get that power from a N/A you will have to do a very aggressive port job, which means drivability suffers and very poor gas mileage
If ya go turbo just boost like 10psi and get it tuned and to save gas stay outta boost
Rotaries LOVE turbos
If ya go turbo just boost like 10psi and get it tuned and to save gas stay outta boost
Rotaries LOVE turbos
11-22-08, 10:42 PM
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i can have three grand. that was my point. I could gradually put money and parts on my n/a. or i could save and do a complete turbo build in one wack. but wat give more you opinion on what i should do.
11-22-08, 10:42 PM
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3k??? get a manifold and s5 turbo then just tap the oil pan for a return line or preferably have someone weld a bung on it then just get a sandwich adapter for the oil filter for the oil feed and just get a megasquirt....can easily be done for $1200 with a descent tune
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11-22-08, 11:23 PM
#8
You do not need to rebuild the engine if you want turbo unless it has low compression...
If you run 12psi on the stock turbo with methanol/water injection on your 6 port engine it will easily put down 250whp+. Psychotic kind of forgot the injectors, fuel pump, TII intakes (or exhaust spacer), intercooler piping, stainless oil supply and drain lines, exhaust and wideband. That kind of stuff adds up QUICK unless you have a shop with cutting and welding tools and are familiar with that type of stuff. Also building a megasquirt isn't an easy job for someone not experienced with electronics...easier option would be an RTEK 2.1. Either way it will cost no more than $1500 if you browse the FS section and find good deals.
Edit: Also if all you want is power then staying NA is the worst decision ever and will cost you tons of money. The right turbo and EMS can turn your old stock NA engine into a 400whp beast, you just have to do your research.
If you run 12psi on the stock turbo with methanol/water injection on your 6 port engine it will easily put down 250whp+. Psychotic kind of forgot the injectors, fuel pump, TII intakes (or exhaust spacer), intercooler piping, stainless oil supply and drain lines, exhaust and wideband. That kind of stuff adds up QUICK unless you have a shop with cutting and welding tools and are familiar with that type of stuff. Also building a megasquirt isn't an easy job for someone not experienced with electronics...easier option would be an RTEK 2.1. Either way it will cost no more than $1500 if you browse the FS section and find good deals.
Edit: Also if all you want is power then staying NA is the worst decision ever and will cost you tons of money. The right turbo and EMS can turn your old stock NA engine into a 400whp beast, you just have to do your research.
Last edited by KhanArtisT; 11-22-08 at 11:26 PM.
11-22-08, 11:33 PM
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damn..... thnx dude.. you just answered 90% of my questions.
now i have a big favor to ask for. from anyone. Can you please give me a list the will tell me everthing i have to do or get for a successful turbo conversion of my 88 gxl n/a. Thnx
now i have a big favor to ask for. from anyone. Can you please give me a list the will tell me everthing i have to do or get for a successful turbo conversion of my 88 gxl n/a. Thnx
11-23-08, 10:33 AM
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Yes, check these links:
https://www.rx7club.com/forum/showth...threadid=26647
http://www.rotaryresurrection.com/ro...conversion.htm
What Turbo kits can I add onto my non turbo RX-7?
There are no longer kits formally made at the time of this post, however there are companies from time to time that do make available non turbo to Turbo Kits. Because most of these companies stop building the kits, or go out of business in short time, it is impossible to keep active links for them.
Most people that turbo a non turbo make their own kits:
Using the stock TII turbo, exhaust manifold with spacer, NA intakes and NA ECU:
http://www.aaroncake.net/rx-7/naturbo.htm
https://www.rx7club.com/forum/showth...threadid=88540
https://www.rx7club.com/forum/showth...threadid=88758
https://www.rx7club.com/forum/showth...hreadid=124232
http://users2.ev1.net/~ccoutts/turbo..._a_project.htm
Using the stock TII turbo, exhaust manifold, intakes, ECU:
http://forum.teamfc3s.org/showthread.php?t=37694
Turbo-NA Forum:
http://www.aaroncake.net/forum/forum...urbocharged+NA
11-23-08, 03:52 PM
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S5 turbo and manifold $200 tops.
can be found at 2nd gen parts classifieds and JDM importers really cheap
oil return flange $10
Ebay
oil filter sandwhich $30
Ebay
intercooler $100
Ebay
intercooler piping and exhaust $300
Local exhaust shops. The most expensive one we have in town was $350 for the twin turbo Stang. They used Galvanized for the intercooler
Walbro 255 fuel pump $100
Ebay
DSM BOV $40
can be found on dsmtuners.com pretty cheap
oil lines $50
local hydraulic shops make these hoses pretty cheap, ask around
ECU....too many options to list, price varies too much. can vary from anywhere from a band aid RRFPR to Apexi AFC to Megasquirt to Haltech or stock TII ECU
TII pressure sensor $50
classifieds
People forget about local shops to make things for our cars. they do great work and are really cheap bc no advertising of parts. hydraulic line shops kick *** for any oil lines. this is a rough estimate of about how much things would cost and have fun!!!
11-23-08, 05:33 PM
#17
Considering that his power goals require him to run at least 8psi which is stock boost I don't think the stock 460ccs will be enough. He needs 550ccs all around, and 720ccs for the secondaries if he wants to turn the boost up. Also for stock turbo I think the FD fuel pump will be enough, I got mine for $35 shipped. I think the exhaust (which should include the 2.5" spacer) is a little on the low side unless you have hookups but other than that its all you need.
11-24-08, 10:04 AM
#19
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I wouldn't suggest sticking with the stock injectors unless a standalone is used.
With the S5 turbo, the practical limit on the NA ECU and NA setup is about 250 RWHP. That's at around 10-12 PSI.
With the S5 turbo, the practical limit on the NA ECU and NA setup is about 250 RWHP. That's at around 10-12 PSI.
11-25-08, 11:31 PM
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yo khan...550cc injectors are known for supplying fuel for over 300 to the fly so im pretty sure the 460s can handle a puny 230, like Aaron said though be sure its fine tuned other wise i would spend an extra $100 for some used 550s and you will not need more than these if you stay under 260 to the wheels
11-26-08, 09:42 AM
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yo khan...550cc injectors are known for supplying fuel for over 300 to the fly so im pretty sure the 460s can handle a puny 230, like Aaron said though be sure its fine tuned other wise i would spend an extra $100 for some used 550s and you will not need more than these if you stay under 260 to the wheels