14s 1/4 mile stock port N/A with 110,000 miles?
#1
Is that thing Turbo?
![](https://www.rx7club.com/images/misc/05_year_icon.png)
Thread Starter
Join Date: Jan 2004
Location: Maryland
Posts: 1,411
Likes: 0
Received 0 Likes
on
0 Posts
![Question](https://www.rx7club.com/images/icons/icon5.gif)
Alright question is easy enough, I run 15.2 with only intake and exhaust on my 86. I did this on bald tires but i did it consistanly, so my question, with new and wider tires, and a tuned SAFC i should be in 14s right? and would a RB header offer a significant increase? I currently have 3 inch pipe to rb cat back. Thanks
#2
I have read about NA's that have extensive mods such as streetports or bigger, port-matched intakes, tuned exhausts, etc. that barely break into 14's. Not that I don't believe you, but just sounds a little far-fetched. I don't think you'll hit 14's with just what you listed.
BTW, what kind of exhaust?
BTW, what kind of exhaust?
#4
Is that thing Turbo?
![](https://www.rx7club.com/images/misc/05_year_icon.png)
Thread Starter
Join Date: Jan 2004
Location: Maryland
Posts: 1,411
Likes: 0
Received 0 Likes
on
0 Posts
My car is as follows:
1986 Mazda RX-7 base N/A
cone filter
Exhaust - 3inch pipe from the stock exhasut manifold back to racing beat cat back.
If you search my name you'll find my timeslip i posted.
15.277 @ 89.10 mph with a 2.1s 60ft
gaining 3/10ths from an SAFC and tires that aren't smooth doesn't seem that off to me, any1 else got an idea?
1986 Mazda RX-7 base N/A
cone filter
Exhaust - 3inch pipe from the stock exhasut manifold back to racing beat cat back.
If you search my name you'll find my timeslip i posted.
15.277 @ 89.10 mph with a 2.1s 60ft
gaining 3/10ths from an SAFC and tires that aren't smooth doesn't seem that off to me, any1 else got an idea?
#6
Id have bet damn good money my N/A was capable of a mid 14 second run. I had a few more mods than you though. Ill list what I had done before my turbo swap:
Superchips reprogrammed ECU
RB Header
Bonez H-F cat
Greddy Cat-back
GTUs 4.3 rear end
Miata Torsen LSD
RB aluminum Flywheel
ACT X-treme clutch/pressure plate
K&N Cone w/HKS adapter
Port matched Intake Manifolds
Pineapple Aux port sleeves
BBS 'Vert wheels (11.5lbs each)
A few weight reduction stuff, etc
The car was very quick for a N/A IMO, not too far off speed wise as my Turbo2 was with an RB 2.5" Turbo-back. If you cant cut a 1.9 or so 60" (gonna be tough, but not impossible) you should break 14s. Your trap speed is pretty low though, so its gonna have to be all in that launch. Good luck
I will get another N/A once my T2 is done..theyre just fun.
Superchips reprogrammed ECU
RB Header
Bonez H-F cat
Greddy Cat-back
GTUs 4.3 rear end
Miata Torsen LSD
RB aluminum Flywheel
ACT X-treme clutch/pressure plate
K&N Cone w/HKS adapter
Port matched Intake Manifolds
Pineapple Aux port sleeves
BBS 'Vert wheels (11.5lbs each)
A few weight reduction stuff, etc
The car was very quick for a N/A IMO, not too far off speed wise as my Turbo2 was with an RB 2.5" Turbo-back. If you cant cut a 1.9 or so 60" (gonna be tough, but not impossible) you should break 14s. Your trap speed is pretty low though, so its gonna have to be all in that launch. Good luck
![Smilie](https://www.rx7club.com/images/smilies/smile.gif)
Last edited by Rxmfn7; 03-19-04 at 06:20 PM.
#7
Is that thing Turbo?
![](https://www.rx7club.com/images/misc/05_year_icon.png)
Thread Starter
Join Date: Jan 2004
Location: Maryland
Posts: 1,411
Likes: 0
Received 0 Likes
on
0 Posts
Glad to see that some1 still thinks N/As are fun lol, I think its more of a chalenge. How about those pineappe racing aux sleeves? they worth it?
Trending Topics
#8
Originally posted by totallimmortal
How about those pineappe racing aux sleeves? they worth it?
How about those pineappe racing aux sleeves? they worth it?
#9
Is that thing Turbo?
![](https://www.rx7club.com/images/misc/05_year_icon.png)
Thread Starter
Join Date: Jan 2004
Location: Maryland
Posts: 1,411
Likes: 0
Received 0 Likes
on
0 Posts
well after doin all that what was the gain like cause those are all things i've considered, I know it sounds far fetched but I'd like to be in low 14's NA stock port, then turbo my NA
#10
Full Member
![](https://www.rx7club.com/images/misc/05_year_icon.png)
Join Date: Mar 2004
Location: jacksonville, florida
Posts: 139
Likes: 0
Received 0 Likes
on
0 Posts
i have intake and exaust on my 86 as well, but i have a 3 inch down pipe going in to a y pipe down to 2 1/4 pipes, and also pacesetter headers and i am running a 14.3, so i think since we have about the same setup headers are well worth the money.
#11
i have intake and exaust on my 86 as well, but i have a 3 inch down pipe going in to a y pipe down to 2 1/4 pipes, and also pacesetter headers and i am running a 14.3, so i think since we have about the same setup headers are well worth the money.
#12
Is that thing Turbo?
![](https://www.rx7club.com/images/misc/05_year_icon.png)
Thread Starter
Join Date: Jan 2004
Location: Maryland
Posts: 1,411
Likes: 0
Received 0 Likes
on
0 Posts
Yeah something has got to be up ther that i don't know about that sounds like the same exhasut setup as me cept you have a header too, Sorry but I just can't belive that a header would knock off a full second
#16
Full Member
![](https://www.rx7club.com/images/misc/05_year_icon.png)
Join Date: Mar 2004
Location: jacksonville, florida
Posts: 139
Likes: 0
Received 0 Likes
on
0 Posts
no, i do not have the slips i juts moved to jacksonville fl, from gainesville, and i ran it at gainesvelle speedway, but in the move i lost alot of papers, dont believe it? i understand that is what everyone says until they run against me
#17
I'm bastardizing my car!
![](https://www.rx7club.com/images/misc/05_year_icon.png)
Join Date: Sep 2002
Location: Naperville, IL.
Posts: 1,258
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by 86project
no, i do not have the slips i juts moved to jacksonville fl, from gainesville, and i ran it at gainesvelle speedway, but in the move i lost alot of papers, dont believe it? i understand that is what everyone says until they run against me
no, i do not have the slips i juts moved to jacksonville fl, from gainesville, and i ran it at gainesvelle speedway, but in the move i lost alot of papers, dont believe it? i understand that is what everyone says until they run against me
#22
Is that thing Turbo?
![](https://www.rx7club.com/images/misc/05_year_icon.png)
Thread Starter
Join Date: Jan 2004
Location: Maryland
Posts: 1,411
Likes: 0
Received 0 Likes
on
0 Posts
We doubted you because you claimed it withou listing all your mods, and most people here know that stock ports with full exhaust and intake don't run low 14's, BTW what ECU do you use? I didn't think the stock one worked to great with ported motors
Thread
Thread Starter
Forum
Replies
Last Post
ncds_fc
New Member RX-7 Technical
1
08-15-15 10:06 AM