1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Lowest 1/4 mile from 12a w/ bolt ons

Old Mar 30, 2006 | 08:37 PM
  #26  
81gsl12a's Avatar
blown up motors
Tenured Member 15 Years
iTrader: (1)
 
Joined: Sep 2004
Posts: 1,325
Likes: 1
From: morganton, NC
Originally Posted by PaulFitzwarryne
I suggest looking at www.rotaryshack.com for ideas on using a blow through system as several forum members have successfully gone down that track. With a target of 280hp at the flywheel you really should refresh the engine with new springs and seals.

With a 12AT producing an estimate 260 fwhp I get high 12 second passes.
does your car hook? or is that with street tires... i know a guy he had a 12at and 1st and 2nd gear was a waste couldint get the car to hook up at all but it was a 12 sec car
Reply
Old Mar 30, 2006 | 08:41 PM
  #27  
FCKing1995's Avatar
Thread Starter
Rotary Slave
Tenured Member 10 Years
iTrader: (3)
 
Joined: Jul 2005
Posts: 1,599
Likes: 1
From: Birmingham, Alabama
yea i plan on doing a freshen up on the engine first, then probably a weber carb, ive always trusted weber over just about any other. then i dunno what size turbo i want yet, something not too big, maybe a 60-1 unless you guys can recommend something else, cause i know **** about turbo carbed cars, this will be my first attempt at something like this, so any suggestions from knowledgable people will be helpful

ps. forgot to ask, where in the hell would i find a turbo mani for a 12a? thanks

Last edited by FCKing1995; Mar 30, 2006 at 08:44 PM.
Reply
Old Mar 30, 2006 | 08:43 PM
  #28  
81gsl12a's Avatar
blown up motors
Tenured Member 15 Years
iTrader: (1)
 
Joined: Sep 2004
Posts: 1,325
Likes: 1
From: morganton, NC
Originally Posted by FCKing1995
well this sint a daily driver, and itll be used mainly for a weekend cruiser, and im more worried about 1/4 mile times than auto-x, so im thinking im gonna turbo it now, but what would be a good carb to use for a forced induction setup? im not looking for a super fast drag car, just something i can kick the **** out of my old car with (14.5-14.8 1/4 mile time) i at least want to see the 13's and somewhere over 280hp. thanks

ps, doesnt have to be gas freindly or user freindly, just fast

12's will be ez to hit with 250ish hp and some good tires.....there are afew diff ways to go about turboing your 12a but 250hp os about the most you can get from a stock port well250-300hp 300 being the maxxxxxxxx the exhaust wont flow enough being stock...more or less you can just throw a stock turbo 2 set up on there and keep yoru stock carb just get it set up for blow thru...or i have a turbo manifold t3, waste gate, bov, side draft manifold..you just need to get IC t3 turbo and a side draft carb
Reply
Old Mar 30, 2006 | 08:57 PM
  #29  
FCKing1995's Avatar
Thread Starter
Rotary Slave
Tenured Member 10 Years
iTrader: (3)
 
Joined: Jul 2005
Posts: 1,599
Likes: 1
From: Birmingham, Alabama
Originally Posted by 81gsl12a
12's will be ez to hit with 250ish hp and some good tires.....there are afew diff ways to go about turboing your 12a but 250hp os about the most you can get from a stock port well250-300hp 300 being the maxxxxxxxx the exhaust wont flow enough being stock...more or less you can just throw a stock turbo 2 set up on there and keep yoru stock carb just get it set up for blow thru...or i have a turbo manifold t3, waste gate, bov, side draft manifold..you just need to get IC t3 turbo and a side draft carb
what do you think would be max for a street port engine? 400ish? what would your guess be at a hp number ( i know its not as easy as just guessing, but give me your best shot lol) weber carb, 60-1 turbo, full racing beat exhaust, maybe a ford 8.8 rear end, and all of the other ussual mods that go along with something like this, and maybe even a small fmic if i feel like going through the trouble, cause as i understand an intercooler isnt 100% necessary... and some good wider wheels and tires? should mid 12's be a problem running a low boost (say 8-10 maybe more)

ugh ps again... 9im a question asking sob tonight) will a stock 13b t2 manifold bolt to a 12a? and is it a t3 or t4

Last edited by FCKing1995; Mar 30, 2006 at 09:02 PM.
Reply
Old Mar 30, 2006 | 09:06 PM
  #30  
81gsl12a's Avatar
blown up motors
Tenured Member 15 Years
iTrader: (1)
 
Joined: Sep 2004
Posts: 1,325
Likes: 1
From: morganton, NC
with a large street port and full race port exhaust and the right torbo and mods you can hit in the 600's hp... and kill mid 12's..if all you are wanting is 12's...get a stock tII manifold and turbo do the waste gate mod. have some1 set up your stock carb for blow thru and yous the stock ports...with ou good tires you will find you new found power useless if you not in a 3rd gear roll
Reply
Old Mar 30, 2006 | 09:10 PM
  #31  
81gsl12a's Avatar
blown up motors
Tenured Member 15 Years
iTrader: (1)
 
Joined: Sep 2004
Posts: 1,325
Likes: 1
From: morganton, NC
the 13bt manifold will bolt up with mods done to it. and its not a t3 or a t4 i dont think err not sure tho
Reply
Old Mar 30, 2006 | 09:15 PM
  #32  
FCKing1995's Avatar
Thread Starter
Rotary Slave
Tenured Member 10 Years
iTrader: (3)
 
Joined: Jul 2005
Posts: 1,599
Likes: 1
From: Birmingham, Alabama
600hp with just those mods? i was thinking like 400ish, just a street port, exhaust, smaller turbo running 8-10psi, and maybe an fmic... im not saying im aiming for 12's, ill take whatever i can get, more or less, im just building ans seeing where it goes i guess, though at that rate might have to upgrade that stock tranny too lol, go with a ford t5 or something i guess, get the 8.8 while im at it. right now all of my income pretty much is going towards my car, and this build will be a year long project im sure, but i have nothing else to do, in college again and my work schedule is kinda messed up but i have a good bit of free time to work on it, ill keep you guys updated on it, though *cough* *cough* i dont even have the car yet... ugh, ive "almost gotten 3 fb's in the last 2 weeks, and all 3 the people either backed out, or informed me wrong... been pissed but i have another one lined up, lets hope 4th times a charm
Reply
Old Mar 30, 2006 | 09:17 PM
  #33  
PaulFitzwarryne's Avatar
Apprentice Guru
Tenured Member 05 Years
 
Joined: Oct 2001
Posts: 1,425
Likes: 0
From: Cloud Nine and Peak of God
Originally Posted by 81gsl12a
does your car hook? or is that with street tires... i know a guy he had a 12at and 1st and 2nd gear was a waste couldint get the car to hook up at all but it was a 12 sec car
That is with 205 60 14 street tires on Enkei wheels. I currently use Yokohama but prefer the Dunlop Formula W which went out of production four years ago[I bought the last two available sets]. Yes they are on the limit of traction. A critical factor is having a performance clutch/light flywheel combination.
Reply
Old Mar 30, 2006 | 09:19 PM
  #34  
81gsl12a's Avatar
blown up motors
Tenured Member 15 Years
iTrader: (1)
 
Joined: Sep 2004
Posts: 1,325
Likes: 1
From: morganton, NC
lol NO not 600 with thos mods........with the right mods you can hit that hp number......i have a super clean shell that needs a motor
Reply
Old Mar 30, 2006 | 09:21 PM
  #35  
FCKing1995's Avatar
Thread Starter
Rotary Slave
Tenured Member 10 Years
iTrader: (3)
 
Joined: Jul 2005
Posts: 1,599
Likes: 1
From: Birmingham, Alabama
Originally Posted by 81gsl12a
lol NO not 600 with thos mods........with the right mods you can hit that hp number......i have a super clean shell that needs a motor
lol i thought so, i was gonna say 600, with that.... hmmmm, and your a bit far of a drive for me, but thanks anyway, not a big fan of 7-8 hour drives for a car thanks anyway though. will a stock, street ported 12a hold that much hp without blowing ****?
Reply
Old Mar 30, 2006 | 09:23 PM
  #36  
81gsl12a's Avatar
blown up motors
Tenured Member 15 Years
iTrader: (1)
 
Joined: Sep 2004
Posts: 1,325
Likes: 1
From: morganton, NC
Originally Posted by PaulFitzwarryne
That is with 205 60 14 street tires on Enkei wheels. I currently use Yokohama but prefer the Dunlop Formula W which went out of production four years ago[I bought the last two available sets]. Yes they are on the limit of traction. A critical factor is having a performance clutch/light flywheel combination.

im a believer in a heavy fly wheel. it takes a lil more to get it going but it doesint drop in rpm as much and if gives a lil more grunt...light flywheels do free up hp but they drop rmp much faster..with a turbo car and a heaver flywheel it will help keep the turbo spooled for the rmps not droping as fast. but there is no right or wrong answer to witch is better every1 think something diff
Reply
Old Mar 30, 2006 | 09:25 PM
  #37  
81gsl12a's Avatar
blown up motors
Tenured Member 15 Years
iTrader: (1)
 
Joined: Sep 2004
Posts: 1,325
Likes: 1
From: morganton, NC
Originally Posted by FCKing1995
lol i thought so, i was gonna say 600, with that.... hmmmm, and your a bit far of a drive for me, but thanks anyway, not a big fan of 7-8 hour drives for a car thanks anyway though. will a stock, street ported 12a hold that much hp without blowing ****?

well ive never heard of a stock street ported 12a....lol if its built right 300-400 hp out of a turbo should be no problem
Reply
Old Mar 30, 2006 | 09:27 PM
  #38  
FCKing1995's Avatar
Thread Starter
Rotary Slave
Tenured Member 10 Years
iTrader: (3)
 
Joined: Jul 2005
Posts: 1,599
Likes: 1
From: Birmingham, Alabama
Originally Posted by 81gsl12a
well ive never heard of a stock street ported 12a....lol if its built right 300-400 hp out of a turbo should be no problem
haha, not a stock street ported, i meant a normal 12a with street port, no other internal work, though i guess there isnt really much to do on the inside aside from cryo
Reply
Old Mar 30, 2006 | 09:30 PM
  #39  
81gsl12a's Avatar
blown up motors
Tenured Member 15 Years
iTrader: (1)
 
Joined: Sep 2004
Posts: 1,325
Likes: 1
From: morganton, NC
you should give robert @ rotary shack a call 818-576-9191
Reply
Old Mar 30, 2006 | 10:02 PM
  #40  
FCKing1995's Avatar
Thread Starter
Rotary Slave
Tenured Member 10 Years
iTrader: (3)
 
Joined: Jul 2005
Posts: 1,599
Likes: 1
From: Birmingham, Alabama
Originally Posted by 81gsl12a
you should give robert @ rotary shack a call 818-576-9191
i just looked around the site and emailed them earlier, maybe i will give them a call tomarrow though. if i need any other help i cant get online i live about 10 minutes from the owner of bnr, might get him to do me a hybrid t2 turbo that i can bolt on. and i just found out that the guy with the car im looking at is selling it for sure, 800 bucks, needs the gas tank reinstalled, and he lives 5 minutes away
Reply
Old Mar 30, 2006 | 10:30 PM
  #41  
PaulFitzwarryne's Avatar
Apprentice Guru
Tenured Member 05 Years
 
Joined: Oct 2001
Posts: 1,425
Likes: 0
From: Cloud Nine and Peak of God
Originally Posted by 81gsl12a
im a believer in a heavy fly wheel. it takes a lil more to get it going but it doesint drop in rpm as much and if gives a lil more grunt...light flywheels do free up hp but they drop rmp much faster..with a turbo car and a heaver flywheel it will help keep the turbo spooled for the rmps not droping as fast. but there is no right or wrong answer to witch is better every1 think something diff
You could be right in the case of better 1/4 times. My combination was chosen for the open road. One of my work trips has a stretch of 650 mile 2 lane rural road with no stop sign or lights, just a stop for fuel and a ferry ride. It's a great ten hour drive in a performance gen 1.
Reply
Old Mar 31, 2006 | 07:01 AM
  #42  
trochoid's Avatar
Old Fart Young at Heart
Tenured Member 10 Years
iTrader: (6)
 
Joined: Apr 2004
Posts: 15,145
Likes: 8
From: St Joe MO
I've seen test results posted by Fidenza for thier light weight flywheels. The lighter ones actually produced better ET's, though not by much.

My toughts/theory on this is: A heavier flywheel gives a better launch, then it's benifits are done. Everytime you shift, the energy that was used in winding up the flywheel is lost between the shifts and starts over. The light weight fly takes less energy to spin up, so less is lost between shifts. This applies to drag racing. Street driving has a different comfort level. I have never driven a car with a light weight fly, but I cannot imagine how much of a pita one would be with no low end torque that I have, or lack, in the bp now.
Reply
Old Mar 31, 2006 | 07:23 PM
  #43  
FCKing1995's Avatar
Thread Starter
Rotary Slave
Tenured Member 10 Years
iTrader: (3)
 
Joined: Jul 2005
Posts: 1,599
Likes: 1
From: Birmingham, Alabama
Im not going to let this thread die So... Ill need to drill and tap an oil line for the turbo onto the front cover? anybody have a picture of proper location of the line? im always really paranoid when it comes to drilling ****, so any help and ill be very greatful
Reply
Old Apr 1, 2006 | 12:10 AM
  #44  
rotaryrudy's Avatar
given up GSL-SE TII swap
Tenured Member 10 Years
iTrader: (2)
 
Joined: Sep 2004
Posts: 700
Likes: 0
From: dallas, TX
just do a TII swap
Reply
Old Apr 1, 2006 | 04:32 PM
  #45  
PaulFitzwarryne's Avatar
Apprentice Guru
Tenured Member 05 Years
 
Joined: Oct 2001
Posts: 1,425
Likes: 0
From: Cloud Nine and Peak of God
Originally Posted by rotaryrudy
just do a TII swap
Isn't is a sign of failure to have to transplant a gen 2 engine into a gen 1 rather than working to get the best out of the 12A? Why not add a gen 3 body, then you would have a really hot FB?
Reply
Old Apr 1, 2006 | 04:38 PM
  #46  
Nicholas P.'s Avatar
Rotary Enthusiast
Tenured Member 15 Years
iTrader: (1)
 
Joined: Jun 2005
Posts: 1,415
Likes: 0
From: Louisiana
argh

Originally Posted by Paradox
dont bother draggin' with a 12a, use it for where it will actually do well.... auto-x, minisprints, slalom, roadcourse, etc...
'



I HATE BASTERDS WHO SAY DONT BOTHER WITH A 12A

Kiss me azz!
Reply
Old Apr 1, 2006 | 04:47 PM
  #47  
FCKing1995's Avatar
Thread Starter
Rotary Slave
Tenured Member 10 Years
iTrader: (3)
 
Joined: Jul 2005
Posts: 1,599
Likes: 1
From: Birmingham, Alabama
at first i wanted to do a 13b swap until i really thought about it... why? 12a is a perfectly good engine for what im aiming for... no need to do a 13b swap
Reply
Old Apr 1, 2006 | 07:59 PM
  #48  
FCKing1995's Avatar
Thread Starter
Rotary Slave
Tenured Member 10 Years
iTrader: (3)
 
Joined: Jul 2005
Posts: 1,599
Likes: 1
From: Birmingham, Alabama
to some of you turbo 12a guys, what kind of turbo are you running? and how much boost? did you build your own downpipe and intercooler piping? just curious to see what some of you guys are running
Reply
Old Apr 1, 2006 | 09:14 PM
  #49  
Nicholas P.'s Avatar
Rotary Enthusiast
Tenured Member 15 Years
iTrader: (1)
 
Joined: Jun 2005
Posts: 1,415
Likes: 0
From: Louisiana
Originally Posted by FCKing1995
to some of you turbo 12a guys, what kind of turbo are you running? and how much boost? did you build your own downpipe and intercooler piping? just curious to see what some of you guys are running

ask 680Whp12a

I think thats it.

his name is robert
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Tylerx7fb
1st Generation Specific (1979-1985)
39
May 27, 2019 12:45 PM
Snook
3rd Generation Specific (1993-2002)
12
Aug 15, 2015 08:18 AM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 10:53 AM.