Hey im lookin for some opinions and knowledge from all off you here... my car still doesnt have enough power I need more Im wondering what the smartest and best choice for what my next move should be.... ok my mods are on an s4 n/a 13b



-large streetport

-hks air intake

-pacesetter headers https://www.nopistons.com/forums/pub...R#>/violin.gif (all I could find)

-custom dual exhaust with dynamax mufflers





also I removed my air pump and 5/6port actuators... whats my next step too gain more horespower?

maybe TB mod?

Get an safc. After that maybe nitrous and start lightening the car

Turbo engine/drivetrain.

The TB mod does not give you more horsepower. You may get better throttle response but not more horsepower.



When you say you removed your 5th and 6th port actuators, you mean you wired the ports open, right? With the ports wired open, it is said that you sacrifice low end power and may be why you do not feel the power you want.



You have done intake, exhaust. There is not much more you can do. Nitrous at the expense of engine reliability or look for a Tii.



There is only so much power that can be squeezed out of an enigine that came stock with 146 to 160 Hp at the flywheel when stock. You just cannot expect to get too much. So look for a turbo RX-7 if you want power. There are guys on here generating a lot of RWHP from a Tii.

You can get over 245 hp out of a Na motor at great cost. If you are looking not to rebuild and get the most bang for your buck I say start with stripping the car and build up some good suspension. It may not make it go faster but handling can be alot of fun. If you want straight line speed on the cheap I would go with good ol N2O. A wet system of 100 shot or less is not as harmfull as many belive and can be alot of fun.

Racing Beat upper intake and a good sidedraft carb with a distributor or a set of FI throttle bodies. With the TB setup you'll need an aftermarket EMS like a Microtech or Haltech. I've switched from the factory intake using a fuel computer to a Weber 48DCOE carb and the power increase was very nice.



My Disclaimer: The carb is not what makes more HP. Its just that intake setup(wether its carb'd or FI) works well with my stock port engine and RB header.

There are superchargers out there i believe.

[quote name='NoeVuh' date='Apr 13 2005, 01:26 PM']There are superchargers out there i believe.


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yah, for more money than the cars worth

DO NOT GET PACESETTER HEADERS they suck go with racing beat or SDJ

Buy a real exhaust.



Or quit wasting your time trying to make an n/a fast, because you will spend more money and still have a slower car than a TII.

mazdaspeed what do you sujest for an exhaust system then...

[quote name='merzzzy' date='Apr 14 2005, 06:19 PM']mazdaspeed what do you sujest for an exhaust system then...


[/quote]





http://cgi.ebay.com/ebaymotors/ws/eBayISAP...ssPageName=WD1V



something like that and then either a good quality cat back and a midpipe, or a full custom exhaust.

" MAZDASPEED7 "

Buy a real exhaust.



Or quit wasting your time trying to make an n/a fast, because you will spend more money and still have a slower car than a TII.







not TOO true , i have an 86 with a BAD ASS street port , RPS 12LBS flywheel , RPS race clutch , weber 48IDA , racing beat headers and custom exhaust . . . and my car faster than a stock TURBO II . . . but ya , a turbo is usually gunna be faster than an N/A . . . if your willing to spend the money , you can make an N/A car move . . .it will cost more money though . . . https://www.nopistons.com/forums/pub...IR#>/bigok.gif

[quote name='aLL_rOTAR' date='Apr 15 2005, 02:49 PM']" MAZDASPEED7 "

Buy a real exhaust.



Or quit wasting your time trying to make an n/a fast, because you will spend more money and still have a slower car than a TII.

not TOO true , i have an 86 with a BAD ASS street port , RPS 12LBS flywheel , RPS race clutch , weber 48IDA , racing beat headers and custom exhaust . . . and my car faster than a stock TURBO II . . . but ya , a turbo is usually gunna be faster than an N/A . . . if your willing to spend the money , you can make an N/A car move . . .it will cost more money though . . . https://www.nopistons.com/forums/pub...IR#>/bigok.gif


[/quote]





So you spent how many thousands of dollars to have a car thats still slower than a TII with a couple hundred dollars worth of mods, cant pass emisions(while the TII could), and undoubtedly doesnt run as well as the TII would, etc. I could go on for a long time.



Trust me, this is the voice of experience. I could pull on my friends modded S2000 in my GTU. But for everything I had into the car, the build engine, the standalone, 8 lb flywheel, TII driveline, etc, it wasnt worth it. If I had put that money into a TII, i would have had an 11 second car.





My friend has a TII that ran a 13.4@106 mph 1/4 with just intake and exhaust and a little fuel. I could duplicate the mods he had for around $600.

" MAZDASPEED7 "



So you spent how many thousands of dollars to have a car thats still slower than a TII with a couple hundred dollars worth of mods, cant pass emisions(while the TII could), and undoubtedly doesnt run as well as the TII would, etc. I could go on for a long time.







well , my plan is to build up my car all motor first , and later on add a turbo . . . but ya , i know its a no brainer that i could have had an 11 sec if i had gone turbo . . . but i want to build up little by little . . . so ya . . . and as far as emissions , i couldnt care less . . . and what do u mean by " doesnt run as well as the TURBO II " ? . . . https://www.nopistons.com/forums/pub...DIR#>/ohmy.png

[quote name='aLL_rOTAR' date='Apr 16 2005, 03:04 AM']" MAZDASPEED7 "



So you spent how many thousands of dollars to have a car thats still slower than a TII with a couple hundred dollars worth of mods, cant pass emisions(while the TII could), and undoubtedly doesnt run as well as the TII would, etc. I could go on for a long time.

well , my plan is to build up my car all motor first , and later on add a turbo . . . but ya , i know its a no brainer that i could have had an 11 sec if i had gone turbo . . . but i want to build up little by little . . . so ya . . . and as far as emissions , i couldnt care less . . . and what do u mean by " doesnt run as well as the TURBO II " ? . . . https://www.nopistons.com/forums/pub...DIR#>/ohmy.png


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Until you scrap the stock ecu and get a standalone, every mod you do is going to make the drivability get a little worse. What happens is that even though the afm can compensate for the extra airflow, the engine starts to get close to the limits of the fuel and ignition mapping, and the maps are not accurate there. Not to mention the ecu itself has been obsolete for over 10 years. The stock ecu can only accurately run the engine at close to the stock hp level.





I think youre wasting your time, I know I was with my GTU.

Ive got years too make a turbo2 right now I want a fast n/a im only 17 years old right now I like my n/a and just want it too go faster.... but ive been thinking about the whole computer thing and I think mine is kinda messed up so I guess The next biggest thing for me would be too get a standalone then??

YO " MAZDASPEED7 ". . .





can you tell me a little more about your standalone ? . . .thanks . .

n/a seem to run while turboII seem to sit in the driveway in peices ..lol

[quote name='merzzzy' date='Apr 12 2005, 04:02 PM']Hey im lookin for some opinions and knowledge from all off you here... my car still doesnt have enough power I need more Im wondering what the smartest and best choice for what my next move should be.... ok my mods are on an s4 n/a 13b



-large streetport

-hks air intake

-pacesetter headers https://www.nopistons.com/forums/pub...R#>/violin.gif (all I could find)

-custom dual exhaust with dynamax mufflers

also I removed my air pump and 5/6port actuators... whats my next step too gain more horespower?


[/quote]





[quote name='SPD Racing FC' date='Apr 14 2005, 09:46 AM']DO NOT GET PACESETTER HEADERS they suck go with racing beat or SDJ


[/quote]





I have a Bonez exhaust system with a straight mid-pipe. I want to get a set of headers; especially from Racing Beat. The only problem is that the only headers I could find from RB are dual pipes and need the rest of the RB exhast. Correct?



What is recommended for my situation?



'='

[quote name='RevRex-7' date='Apr 19 2005, 01:37 PM']I have a Bonez exhaust system with a straight mid-pipe. I want to get a set of headers; especially from Racing Beat. The only problem is that the only headers I could find from RB are dual pipes and need the rest of the RB exhast. Correct?



What is recommended for my situation?



'='


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nope . . .u dont need the whole exhaust system . . . it would be nice though . . . i have racing beat headers and a custom exhaust system . . . its not all that great , but thats wut the car came with . . . the Racing Beat exhaust system costs around 1200 at Mazdatrix, its hella expensive , but worth it . . . thats wut im thinking of getting, that or an HKS system . . . for now , once i get my motor back in , im just gunna get a custom exhaust system , its cheaper and will work fer a while . . . so ya , my headers are from racing beat , and are cut at the end and welded onto some straight piping , onto some glass packs ( pre-silencer ) , onto some more piping , ending with the stock dual mufflers . . . so ya , pretty crappy , but it works , so since you got the mufflers , just buy the headers , and get a custom job done , its not too expensive . .. or you could go the racing beat way and spend big buck$$ . . https://www.nopistons.com/forums/pub...1047683827.gif

[quote name='aLL_rOTAR' date='Apr 19 2005, 03:26 PM']nope . . .u dont need the whole exhaust system . . . it would be nice though . . . i have racing beat headers and a custom exhaust system . . . its not all that great , but thats wut the car came with . . . the Racing Beat exhaust system costs around 1200 at Mazdatrix, its hella expensive , but worth it . . . thats wut im thinking of getting, that or an HKS system . . . for now , once i get my motor back in , im just gunna get a custom exhaust system , its cheaper and will work fer a while . . . so ya , my headers are from racing beat , and are cut at the end and welded onto some straight piping , onto some glass packs ( pre-silencer ) , onto some more piping , ending with the stock dual mufflers . . . so ya , pretty crappy , but it works , so since you got the mufflers , just buy the headers , and get a custom job done , its not too expensive . .. or you could go the racing beat way and spend big buck$$ . . https://www.nopistons.com/forums/pub...1047683827.gif


[/quote]





Excellent advice, thank you.



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