dont flame but really can the twins do this?
#1
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dont flame but really can the twins do this?
Please dont flame for asking but im really in a cross roads where i can go either route. I have my twins already there in excellent shape with only 20K miles on them, they been ported by Pettit and are full non sequential.
I am shooting to break into the high/mid 11's in my FD this summer.
I have an excellent suspension setup I think.
I have the rx7.com Launch kit
tein flex coil overs
transmission and differential brace
and I will be running BFG drag radials at the strip
Hooking up should not be a problem (mydriving maybe since i havent driven the 7 at the strip ever)
anyways lets pretend I can drive pretty darn good in it.
and my car has pretty much every bolt on under the sun for the stock twins.
down to the intercooler to the downpipe to the HKS ignition system..
now my question is if i run therse twins at lets say 14psi or 15psi for that matter and get a propper tune.. should this car be cappable of running those times safely?
or should i ditch them now and just go single turbo??
reason i ask is I love the twins, they way the look sound, run everything. I have everything for them already also.. I have no ambition right now to really go faster than an 11.5 ET in in the quarter mile..
the motor I have is also a Pettit street ported motor.
can the twins get me there or should i not even try it?
I am shooting to break into the high/mid 11's in my FD this summer.
I have an excellent suspension setup I think.
I have the rx7.com Launch kit
tein flex coil overs
transmission and differential brace
and I will be running BFG drag radials at the strip
Hooking up should not be a problem (mydriving maybe since i havent driven the 7 at the strip ever)
anyways lets pretend I can drive pretty darn good in it.
and my car has pretty much every bolt on under the sun for the stock twins.
down to the intercooler to the downpipe to the HKS ignition system..
now my question is if i run therse twins at lets say 14psi or 15psi for that matter and get a propper tune.. should this car be cappable of running those times safely?
or should i ditch them now and just go single turbo??
reason i ask is I love the twins, they way the look sound, run everything. I have everything for them already also.. I have no ambition right now to really go faster than an 11.5 ET in in the quarter mile..
the motor I have is also a Pettit street ported motor.
can the twins get me there or should i not even try it?
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ok cool.. i just dont want to waste my time with the twins if they wont do it.
plus i wanna be able to get a decent life out of them also.. and not fry in my first year.
plus i wanna be able to get a decent life out of them also.. and not fry in my first year.
#5
Mr. Links
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Yes, it can and has been done on stock twins. However, I'll tell you right now that you are going to (eventually) break something at the strip. You'll need the following:
* Either a TII or a Kaaz diff
* Chromoly axles
RTS3GEN here on the forum ran an 11.77 a few years back. I watch him over the years break a lot of things to get to that 11.77.
* Either a TII or a Kaaz diff
* Chromoly axles
RTS3GEN here on the forum ran an 11.77 a few years back. I watch him over the years break a lot of things to get to that 11.77.
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actually mahjik.. the money ill save from not going single will actually fund my Kazz locker unit.
the stock axles ill have to deal with till winter tho sadly.
the stock axles ill have to deal with till winter tho sadly.
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if im going to keep the twins.. i want my car to have pretty much the best of everything while running non-sequential twins for now.. maybe 2-3 years ill still go single but for now I might as well have fun!
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#8
Mr. Links
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As you strengthen one part (the diff), another part becomes your weak link (i.e. the axles). RTS3GEN broke his axle after his 11.77 run. He had already upgraded to the Kaaz, but snapped an axle on his next run trying to better his time. Well, I wouldn't call it a run as it didn't leave the starting line.
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i got ya.. yeah maybe ill just get used to my car this year upgrade everything and do the axles when i get the money and then see what she will do!
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plus i always thought the axles were good to the mid 10's i think hinson even says it on there site.. i was hoping i could get away from the axles at least for a year.. but i def know the locker is a must have.
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understood sir..
ill just upgrade the diff, now and take it somewhat easy at the strip until i can afford the axles too..
or i can just not run drag radials
ill just upgrade the diff, now and take it somewhat easy at the strip until i can afford the axles too..
or i can just not run drag radials
#18
Eh
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Probably about 10-15 peopel over the years have gone 11.0-11.5s on the stockers. Some have done it on stock ports also. A lot of those guys later switched to singles and still run about the same E.T. but trap obviously higher. The stock twins are very capable to make a fd move down the track in a hurry.
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excellent news and help guys! and thanks for not flaming me for asking, cause im sure its a topic thats been beat to death..
So pretty much i need to look into upgrading axles and the kazz and i should be safe for about anything id then run right?
So pretty much i need to look into upgrading axles and the kazz and i should be safe for about anything id then run right?
#20
GorillaRaceEngineering.co
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Yes, a drag radials have a stiff sidewall which causes drive train "shock" under a hard launch. A true slick has a very soft sidewall and has a dampining effect on the drive train. The fact is you will always have a weak link.... clutch, input shaft, gears, output shaft, drive shaft, diff, diff case, diff gears, axles, suspension, wheels and tires all have to work together.
Also I would consider something a little softer than your coilovers.....
-J
Also I would consider something a little softer than your coilovers.....
-J
#22
GorillaRaceEngineering.co
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Probably about 10-15 peopel over the years have gone 11.0-11.5s on the stockers. Some have done it on stock ports also. A lot of those guys later switched to singles and still run about the same E.T. but trap obviously higher. The stock twins are very capable to make a fd move down the track in a hurry.
I've been 12.02 @ 113mph with 312 rwhp on 245/45 16 street tires. 11.XX is not as hard as people think, you just have to have a GOOD driver and the right setup.
-J
#24
GorillaRaceEngineering.co
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https://www.rx7club.com/rotary-drag-racing-167/proper-drag-suspension-541711/
-J
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ok i think i know my setup ill run for the street/strip but its not set in stone.. im readin up on it for now..
now i gotta figure out my fuel system thats the only last thing i need and im thinking 4-850cc injectors will do well for 350rwhp?? you guys agree?
now i gotta figure out my fuel system thats the only last thing i need and im thinking 4-850cc injectors will do well for 350rwhp?? you guys agree?