what rpm to launch at? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Shift_Nissan · 05-31-2005, 10:33 PM

im going to the track this saturday i need to know what rpm i should launch my car at? I got a redtop sr20det w/ upgraded T28 turbo, GP Sports Spec R exahust w/3"piping no cat,Blitz dp greddy hot pipe, Greddy Type-S bov, and Greddy FMIC and i got 17" Nismo LMGT4's wrapped in yokohama parada spec 2 tires. I will be boosting at 10psi. How fast do you guys will think my car will do?

Thanks
Jimmy

infinitexsound · 05-31-2005, 10:37 PM

eh.... drag racing.... hmm i predict a low 13 maybe.. prove me wrong, but i think u need to bump up the psi... any lsd? some people like to launch hard like around 4500, me myself i like the rolling start method.. u get about a foot after the last yellow so...

Shift_Nissan · 05-31-2005, 10:43 PM

no lsd yet need to save up. how much more psi do u reccomend?

TheSnail · 05-31-2005, 10:42 PM

13.3 -13.7 As for the rpm launch, see what launches best. We are not computers.

sr420det · 05-31-2005, 10:45 PM

raise to 1.1 -1.4 bars

TheSnail · 05-31-2005, 10:46 PM

Quote:

Originally Posted by sr420det

raise to 1.1 -1.4 bars

20.6psi??????

TheSnail · 05-31-2005, 10:45 PM

13.5-14.2sec , 14psi if you want to see what you can do.

Shift_Nissan · 05-31-2005, 10:47 PM

lol 20psi i'll blow my motor up im on stock internals crazy mofo

Shift_Nissan · 05-31-2005, 10:53 PM

do you guys know any company that makes a bottom mount manifold that fits the turbonetics 60-1 turbo?

infinitexsound · 05-31-2005, 10:59 PM

buy a bottom mount mani, and buy a flange.. have a shop cut and reweld.. somethings might be a little off but.. might need some re-adjusting..to make it work... or better yet search.............

***S14DB*** · 05-31-2005, 11:14 PM

7,500k and then dump it.

TheSnail · 05-31-2005, 11:17 PM

Quote:

Originally Posted by S14DB

7,500k and then dump it.

Thats only if you have HKS rocker arm stoppers

420sx · 05-31-2005, 11:25 PM

Quote:

Originally Posted by S14DB

7,500k and then dump it.

and u just gonna spin out and look like a moron. especially with no lsd and street tires.

TheSnail · 05-31-2005, 11:31 PM

Quote:

Originally Posted by 420sx

and u just gonna spin out and look like a moron. especially with no lsd and street tires.

We were just joking.

420sx · 05-31-2005, 11:29 PM

btw, i havent ran my Sr on the strip yet, but launching a ka right at about 3500 is about right. with proper burn out of corse. i ran 15.7-8 consistantly after like 5-6 bad runs. just takes practise. u should launch at about 3200-3500k. but thats my opinion. anything higher u gonna spin out

infinitexsound · 05-31-2005, 11:48 PM

looking like a moron is doing a smokey burn out to show off.. or not even lining up right... highly doubt the dude would spin out of control.. 3500 is ok, but if your gonna dump it... kinda wanna go higher... iono car condtion, driver skill, pavement all plays a factor.. but blah.. just do a rolling start.. works well and u wont break shit..

Pank · 06-01-2005, 12:33 AM

put it in 5th gear and sidestep the clutch

infinitexsound · 06-01-2005, 02:46 AM

^

classic

05-31-2005, 10:33 PM	#1
Shift_Nissan Join Date: Apr 2005 Location: canada Posts: 39 Trader Rating: (0) Feedback Score: 0 reviews	what rpm to launch at? im going to the track this saturday i need to know what rpm i should launch my car at? I got a redtop sr20det w/ upgraded T28 turbo, GP Sports Spec R exahust w/3"piping no cat,Blitz dp greddy hot pipe, Greddy Type-S bov, and Greddy FMIC and i got 17" Nismo LMGT4's wrapped in yokohama parada spec 2 tires. I will be boosting at 10psi. How fast do you guys will think my car will do? Thanks Jimmy

05-31-2005, 10:37 PM	#2
infinitexsound Post Whore! Join Date: Sep 2003 Location: INtraweb Age: 39 Posts: 3,522 Trader Rating: (0) Feedback Score: 0 reviews	eh.... drag racing.... hmm i predict a low 13 maybe.. prove me wrong, but i think u need to bump up the psi... any lsd? some people like to launch hard like around 4500, me myself i like the rolling start method.. u get about a foot after the last yellow so... __________________ S14 TrackSlut coming to a raceway near you... 510 TimeAttack on its way...

05-31-2005, 10:59 PM	#10
infinitexsound Post Whore! Join Date: Sep 2003 Location: INtraweb Age: 39 Posts: 3,522 Trader Rating: (0) Feedback Score: 0 reviews	buy a bottom mount mani, and buy a flange.. have a shop cut and reweld.. somethings might be a little off but.. might need some re-adjusting..to make it work... or better yet search............. __________________ S14 TrackSlut coming to a raceway near you... 510 TimeAttack on its way...

05-31-2005, 11:29 PM	#15
420sx Post Whore! Join Date: Jun 2004 Location: Texas Age: 38 Posts: 3,960 Trader Rating: (0) Rides Gallery: 420sx Feedback Score: 0 reviews	btw, i havent ran my Sr on the strip yet, but launching a ka right at about 3500 is about right. with proper burn out of corse. i ran 15.7-8 consistantly after like 5-6 bad runs. just takes practise. u should launch at about 3200-3500k. but thats my opinion. anything higher u gonna spin out __________________ hydropgrahics! ls1......

05-31-2005, 11:48 PM	#16
infinitexsound Post Whore! Join Date: Sep 2003 Location: INtraweb Age: 39 Posts: 3,522 Trader Rating: (0) Feedback Score: 0 reviews	looking like a moron is doing a smokey burn out to show off.. or not even lining up right... highly doubt the dude would spin out of control.. 3500 is ok, but if your gonna dump it... kinda wanna go higher... iono car condtion, driver skill, pavement all plays a factor.. but blah.. just do a rolling start.. works well and u wont break shit.. __________________ S14 TrackSlut coming to a raceway near you... 510 TimeAttack on its way...

05-31-2005, 10:43 PM	#3
Shift_Nissan Join Date: Apr 2005 Location: canada Posts: 39 Trader Rating: (0) Feedback Score: 0 reviews	no lsd yet need to save up. how much more psi do u reccomend?

05-31-2005, 10:42 PM	#4
TheSnail Nissanaholic! Join Date: Jan 2004 Location: Marietta Georgia Age: 39 Posts: 2,434 Trader Rating: (0) Feedback Score: 0 reviews	13.3 -13.7 As for the rpm launch, see what launches best. We are not computers.

05-31-2005, 10:45 PM	#5
sr420det Zilvia Member Join Date: Jun 2004 Location: nowhere Posts: 162 Trader Rating: (0) Feedback Score: 0 reviews	raise to 1.1 -1.4 bars

05-31-2005, 10:47 PM	#8
Shift_Nissan Join Date: Apr 2005 Location: canada Posts: 39 Trader Rating: (0) Feedback Score: 0 reviews	lol 20psi i'll blow my motor up im on stock internals crazy mofo

05-31-2005, 10:53 PM	#9
Shift_Nissan Join Date: Apr 2005 Location: canada Posts: 39 Trader Rating: (0) Feedback Score: 0 reviews	do you guys know any company that makes a bottom mount manifold that fits the turbonetics 60-1 turbo?

05-31-2005, 11:14 PM	#11
*S14DB* AFC #1 Join Date: Oct 2003 Location: 昨晩あなたのお母さんの家 Posts: 20,181 Trader Rating: (3) Feedback Score: 3 reviews	7,500k and then dump it.

06-01-2005, 12:33 AM	#17
Pank Post Whore! Join Date: Oct 2004 Location: Charlotte, NC Age: 38 Posts: 3,627 Trader Rating: (0) Feedback Score: 0 reviews	put it in 5th gear and sidestep the clutch __________________ high performance driveway photography zenki s14---v8 fc rx7 my crappy flickr page (drift cars whoo)

06-01-2005, 02:46 AM	#18
infinitexsound Post Whore! Join Date: Sep 2003 Location: INtraweb Age: 39 Posts: 3,522 Trader Rating: (0) Feedback Score: 0 reviews	^ classic __________________ S14 TrackSlut coming to a raceway near you... 510 TimeAttack on its way...

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