3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
Sponsored by:

Horsepower increases from a Street port?

Thread Tools
 
Search this Thread
 
Old 01-22-02, 12:04 PM
  #1  
Rotard

Thread Starter
 
Red95T-Rex's Avatar
 
Join Date: Nov 2001
Location: Houston, Texas / Arlington, Texas
Posts: 250
Likes: 0
Received 0 Likes on 0 Posts
Horsepower increases from a Street port?

OK, Rotory Performance is gonna charge me another 1800 on top of everything to upgrade from a factory remanufactured (like new) motor to a motor that they have put together and claim to be "new" with better 2mm seals and a street port. Is this worth it? They wouldnt give me any HP ratings on what the Street port would do. What kind of HP increase can I expect from just the street port??? They said it could handle up to 400 Horsepower, but I have seen some guys with stock motor, and stock turbos hit upwards of that. With only a catback system, my car was making 275 FWHP...and with an intercooler, full exhaust, PowerFC, and Cold air, shouldn't my stock motor hit 400? WHAT IS THE ADVANTAGE OF A STREET PORT OTHER THAN FLOWING SLIGHTLY MORE, IF IT WONT HANDLE MUCH MORE POWER???
Thanks, Kevin (KEMRX7@aol.com / AIM-->KEMRX7)
Old 01-22-02, 02:08 PM
  #2  
WTB** Very Low Miles 94-95

 
artguy's Avatar
 
Join Date: Jul 2001
Location: Tejas
Posts: 3,298
Likes: 0
Received 0 Likes on 0 Posts
do it...

get the street port....it will wake that motor up...

I have mine ported...it used to have most of the power in the mid rpm range....with peak at 5500-6500 rpms at most....now there is no peak..it just pulls and pulls and pulls....its scary.

before I had it done Id get the jump on the supras around town but once they hit boost they would nudge past me. not anymore....well especially not anymore. ...to all the supra boys...Im sure there are many who will clean my clock...but I welcome the challenge.

rotary reliablity does their streetports to about 30-40hp gains. it is definitely worth it.

but...it depends on who does the port and how much porting they do...to much and you will lose low end power for all your high end gains...too much and your idle will suffer....too little and it was a waste of money....there is a good balance there depending on how you plan to drive your car.

be sure whoever does it understands how you plan to use the car and how much gains you expect.

it will have a bit of low end loss in exchange for all the mid and high end power...but it is worth it completely...at least it was for me. i picked up the ball bearing turbo set to gain back some of my response. I also picked my exhaust based on where i wanted the power gains to be...will be setting up the pwer fc once the motor is broken in for the same thing...I want great low end and mids with nice high rpm pwer...Im greedy.


jason

definitley get the port done...you will be a happy man if you have the fuel system done and at least exhaust and dp and intake. those few items will make that a completely different car.
Old 01-22-02, 02:10 PM
  #3  
WTB** Very Low Miles 94-95

 
artguy's Avatar
 
Join Date: Jul 2001
Location: Tejas
Posts: 3,298
Likes: 0
Received 0 Likes on 0 Posts
streetport

Im not sure on the cost they are hitting you with...seems high to me.

I paid 5500 the first time I did the motor and that included new seals and the streetport.

how much are they charging you total for the motor??? 1800 plus the new motor?? or 1800 plus labor for the install...1800 for a motor alone is a steal..but you are not clear...

jason
Old 01-22-02, 03:07 PM
  #4  
Rotard

Thread Starter
 
Red95T-Rex's Avatar
 
Join Date: Nov 2001
Location: Houston, Texas / Arlington, Texas
Posts: 250
Likes: 0
Received 0 Likes on 0 Posts
They are charging me $1800 + the Reg. Motor Price. What will he capabilities of a new street ported motor usually be? How much more HP can they handle than a stock motor?
Thanks again, Kevin (KEMRX7@aol.com / AIM--->KEMRX7)
Old 01-22-02, 08:57 PM
  #5  
Senior Member
 
MeLoco's Avatar
 
Join Date: Mar 2001
Posts: 273
Likes: 0
Received 0 Likes on 0 Posts
Pinapple racing cost me 2900 with very aggressive street port and stage three mods plus some others maybe you could give rob a call.He's the only guy I know that will give you a five year warranty on his motors.
Old 01-22-02, 10:18 PM
  #6  
WTB** Very Low Miles 94-95

 
artguy's Avatar
 
Join Date: Jul 2001
Location: Tejas
Posts: 3,298
Likes: 0
Received 0 Likes on 0 Posts
hey.

you will have more HP with the streetport than without. period. it is completely worth it. it is almost a must I would say...especially if the motor is out. it is the best bang for the buck that way.

the pineapple racing price sounds right...dont have that other shop do it....they are ripping you off IMHO.

another shop to call is rotary reliablity and racing in santa ana. ask for nick. they did my motor and many of the other guys cars on this forum. Hes been doing motors for twenty years.

Rotary can be reached at 7148398018

tell nick I sent you over and get some price comparisons before ordering that new motor. He should be able to beat that price by a mile including shipping. He has a good warrantee as well.

best of luck...both places are a steal in comparison to that place you are dealing with...if you have to have them do the work get the motor elsewhere and tell them all you want them to do is put it in.

jason
Old 01-22-02, 10:29 PM
  #7  
Laying Down Rotary Law

 
kabooski's Avatar
 
Join Date: Mar 2001
Location: central florida
Posts: 2,075
Likes: 0
Received 1 Like on 1 Post
awwww $1,800
for a street port.. YIKES!
that incudes custom apex seals

Jackson racing has 2mm HD seals for $400 with springs
$500 for street porting is a fair price on top off the motor cost

but there charging you $1,200 for street porting LABOR WOW!
Holy Cow and I thought Mercedes Mechs where expensive.

Man you got to find another reputable rotary Mech is TX

My Mech charged me $300 for street porting my TII engine
and the results speak for them selves

13.5@104 on plain street tires
2.1 60FT
with Just Exhaust and NOTHING and I mean NOTHING else.
Old 01-22-02, 11:21 PM
  #8  
Rotary Enthusiast

 
kwikrx7's Avatar
 
Join Date: Mar 2001
Location: Mechanicsburg, PA USA
Posts: 1,392
Likes: 0
Received 0 Likes on 0 Posts
Streetporting basically makes you get more power out of your intake and exhaust. I believe you get around 15-25 rwhp throughout the powerband with a mild street-port. If you are staying stock - it is a waste of time. But even with a dp, exhaust, and intake you'll notice a difference - especially in 3rd and 4th gear runs where the car pull like a freight train. If you're getting your motor rebuilt or a reman - it is worth it to get the streetport. Mine cost $5500 for a reman, streetport, oil and coolant porting, with 2mm Hurley racing seals. You lose a hair of low end - but not much.
Old 01-22-02, 11:48 PM
  #9  
Rotard

Thread Starter
 
Red95T-Rex's Avatar
 
Join Date: Nov 2001
Location: Houston, Texas / Arlington, Texas
Posts: 250
Likes: 0
Received 0 Likes on 0 Posts
My car is already there...and has been there over a month waiting for approval from my warrantee company. They finally approved it after I convinced them that I had never modified the car to cause the engine failure. So I dont know if I can take my car somewhere else. Plus, I am located in HOUSTON, TX....I am thinking about talking to Marcus Williams and seeing how much he would charge. PLEASE ANY MORE INPUT WOULD HELP!!!
Thanks, Kevin (KEMRX7@aol.com / AIM--->KEMRX7)
Old 01-23-02, 01:59 AM
  #10  
WWFSMD

 
maxcooper's Avatar
 
Join Date: Jun 2001
Location: SoCal
Posts: 5,035
Likes: 0
Received 4 Likes on 4 Posts
If they have to pull the Mazda reman apart, the $1800 addition is not that unreasonable considering the porting, dissassebly and reassembly and gasket kit costs.

Unless you are really on a tight budget and just want to put a reman in there, I highly recommend a street port. It gives a decent power increase but also wakes the car up in the high RPM range. After I got my car back with a street port (and finished break-in) I was banging off the rev limiter a lot until I got used to it. It feels great with the motor pulling hard all the way to redline!

-Max
Old 01-23-02, 08:17 PM
  #11  
Rotard

Thread Starter
 
Red95T-Rex's Avatar
 
Join Date: Nov 2001
Location: Houston, Texas / Arlington, Texas
Posts: 250
Likes: 0
Received 0 Likes on 0 Posts
They are not tearing apart a mazda Reman. They are selling me a motor that they assembled themselves. The 1800 is an increase over a mazda reman. and includes (supposedly) better 2mm seals, better springs, and a port job. Thanks for your input. Is it common to get any of the oil or coolant ports enlarged also?
Thanks, Kevin
Old 01-23-02, 08:28 PM
  #12  
Full Member

 
rx7bj's Avatar
 
Join Date: Feb 2001
Location: San Antonio TX
Posts: 101
Likes: 0
Received 0 Likes on 0 Posts
hey red95 you should call alamo rotary in san antonio the guy you need to talk to is tito. He just recently put a 3 rotor in his car and does 3 rotor conversions. He also rebuilt my motor in my 3rd gen as well as my turbo II. His webpage is www.alamorotary.com
Old 01-23-02, 11:49 PM
  #13  
Full Member

 
jbtam99's Avatar
 
Join Date: Jul 2001
Location: Benton, Ar
Posts: 131
Likes: 0
Received 0 Likes on 0 Posts
Marcus is a hell of a lot cheaper... 'cept I think he's probably too busy working on the race car to take on anything else right now.

Definately check with him though.
Old 01-24-02, 04:57 AM
  #14  
Rotary Enthusiast

 
Astro's Avatar
 
Join Date: Feb 2001
Location: Calgary, Alberta, Canada
Posts: 809
Likes: 0
Received 0 Likes on 0 Posts
try RX-7 Specialties in canada too
403 246 6980
Old 01-24-02, 01:23 PM
  #15  
WTB** Very Low Miles 94-95

 
artguy's Avatar
 
Join Date: Jul 2001
Location: Tejas
Posts: 3,298
Likes: 0
Received 0 Likes on 0 Posts
rip off

they are ripping you off...simple as that.

you can take your car elsewhere...simply call the insurace company.

jason
Old 01-24-02, 01:24 PM
  #16  
WTB** Very Low Miles 94-95

 
artguy's Avatar
 
Join Date: Jul 2001
Location: Tejas
Posts: 3,298
Likes: 0
Received 0 Likes on 0 Posts
price list

http://www.pineappleracing.com/PricelistSvcs.html

chec this out.
Old 01-24-02, 02:16 PM
  #17  
Lives on the Forum

 
rynberg's Avatar
 
Join Date: Dec 2001
Location: San Lorenzo, California
Posts: 14,716
Likes: 0
Received 8 Likes on 8 Posts
How is this a big rip-off?

RP wants $1800 over a reman, a Mazda reman is ~$1900. This puts the price of a rebuilt motor at ~$3700 for upgraded apex seals and springs and a streetport. This is certainly competetive with most of the independant rebuilders.

In addition, he's already at the shop. To go somewhere else, he has to get the motor pulled, crated hundreds of miles, wait, get the motor crated back, and have someone put it in. How is this a big rip-off?
Old 01-24-02, 10:39 PM
  #18  
Rotard

Thread Starter
 
Red95T-Rex's Avatar
 
Join Date: Nov 2001
Location: Houston, Texas / Arlington, Texas
Posts: 250
Likes: 0
Received 0 Likes on 0 Posts
Thanks for all your replies! I decided to keep my car at Rotary Performance. If anything ever goes wrong with it...I can just bring my car up to Garland, TX and make them repair it. I KNOW this price is pretty high, but I know they do quality work and have great tech support. I will also be moving to the Dallas/Ft. Worth area next year and will be only 30 minutes away from RP.
Old 01-25-02, 01:13 AM
  #19  
WWFSMD

 
maxcooper's Avatar
 
Join Date: Jun 2001
Location: SoCal
Posts: 5,035
Likes: 0
Received 4 Likes on 4 Posts
I've heard it said that getting a Mazda reman and pulling it apart can save money over buying new parts individually. If you get a reman with new rotors and housings (rotary, side, and intermediate) the $1800 price is way less than buying the parts separately. Chances are that you won't get all new housings, but still $1800 is pretty cheap. For comparison, I spent about $4000 just on parts for my last rebuild and I reused the side and intermediate housings. Pulling a reman apart and porting it isn't a bad idea unless you get a reman with mostly used parts. You still need a gasket kit, though, for reassembly.

-Max
Old 01-25-02, 11:40 AM
  #20  
Rotard

Thread Starter
 
Red95T-Rex's Avatar
 
Join Date: Nov 2001
Location: Houston, Texas / Arlington, Texas
Posts: 250
Likes: 0
Received 0 Likes on 0 Posts
The complete motor is 3600 for mazda raman. and labor PLUS the 1800 for the upgrade to the new ported motor and better seals. The also said they slightly enlarge the oil ports. They DO NOT port or rib the cooling chambers. This was another 1000 dollars, but it also came with 3mm seals and more aggressive porting of the intake and exhaust.
Old 01-25-02, 12:24 PM
  #21  
WTB** Very Low Miles 94-95

 
artguy's Avatar
 
Join Date: Jul 2001
Location: Tejas
Posts: 3,298
Likes: 0
Received 0 Likes on 0 Posts
haha

what mazda dealer is selling motors for 1900...they are 3800-4500 here in LA...at least that is what my last quotes were..parts only.

is that maz comp discount??

I still think its high.

Im on my third motor now...maybe I just got good deals.

jason
Old 01-25-02, 09:26 PM
  #22  
Full Member

 
RexTech's Avatar
 
Join Date: Sep 2001
Location: Caracas, Venezuela
Posts: 156
Likes: 0
Received 0 Likes on 0 Posts
ArtGuy: A reman. 13B engine (non turbo) is about $1950. My brother will buy one in Miami for his 1987 non turbo RX-7 (then hi need to imported to my country)
I call to a Mazda dealer called Marlin Mazda in Miami the last weekend, i asked for the price and they told me $1950+core (you know, the bad one core)

Do you know what is the weight of the core?
Old 01-26-02, 12:52 AM
  #23  
Rotary Enthusiast

 
kwikrx7's Avatar
 
Join Date: Mar 2001
Location: Mechanicsburg, PA USA
Posts: 1,392
Likes: 0
Received 0 Likes on 0 Posts
Malloy Mazda has them for $1950 through KD Rotary since he does a lot of business with Malloy. Dave at KDR said after tearing down most of the engines to streetport them, he's only found one engine with a used part in it. Good deal - they used to be $1750 - then they bounced it up right before I bought it
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Ian_D
Single Turbo RX-7's
25
10-14-15 12:31 PM
SCinfidel
3rd Generation Specific (1993-2002)
4
09-08-15 05:36 PM
doritoloco
New Member RX-7 Technical
7
09-05-15 12:41 PM



Quick Reply: Horsepower increases from a Street port?



All times are GMT -5. The time now is 06:25 AM.