RPM's for manual

lilspanky9119 · October 15th, 2010, 10:01 AM

I have a 5 speed 98 GT, without a tune. I seem to be shifting around 3500-4000 PRM, bc I feel my engine is revving pretty higher then it says and almost to where I should be shifting earlier. This is because my car's computer should be tuned correct? I know that with an automatic the shift points are bad, and can be easily corrected with a tune, but I thought with a stick it shouldn't be like that. I mean I could obviously just not shift until a higher RPM but I feel im hurting my engine, could that be? Thanks guys.

sharkbait · October 15th, 2010, 10:08 AM

If your serious that your shifting at 3500 - 4000 them your not getting nearly as much performance out of you car as you can be.

I spin my 5.4 to 5500 and my ol 4.6 to 6300

lilspanky9119 · October 15th, 2010, 10:11 AM

I know, I mean if I ever race, (which is rare ) I shift it later, but I feel my engine is not tuned to be shifting that late. I feel its wanting to shift way earlier, I have driven other cars and shift later in them so I know its not me.

sharkbait · October 15th, 2010, 11:17 AM

Your cars factory redline is set for 6k.

Your car dosnt need to be tuned lol. Its correctly tuned from the factory to be shifted at 6k.
Its acctually a little better to shift about 5-5.5k or so because you dont make to much power up top. But yea dude your fine. These are high revving motors its all good.

sharkbait · October 15th, 2010, 11:17 AM

Are you talking about shifting when you race or shifting when your driving around town?

lilspanky9119 · October 15th, 2010, 11:25 AM

True, cool then I feel better. When I race I shift higher I just feel like im hurting it

sharkbait · October 15th, 2010, 11:35 AM

Yea i mean i wouldnt stay up there for long. But your plenty fine up in the higher rpms.

I will say though after 5500 your really just doing more harm then good. NPI motors dont make much power up there, so your just kinda reving and wasting time. Thats untill you get boosted then shift around 6

KV007 · October 15th, 2010, 12:39 PM

Originally Posted by sharkbait

I spin my ol 4.6 to 6300

hmm, im starting to realize why it blew up lol

dcook_14 · October 15th, 2010, 12:43 PM

I shift at about 2.5k when I'm DD'ing and about 6200 when I race. If I'm doing some spirited street drivng I take it up to 4.5-5k.

sharkbait · October 15th, 2010, 12:47 PM

Originally Posted by dcook_14

I shift at about 2.5k when I'm DD'ing and about 6200 when I race. If I'm doing some spirited street drivng I take it up to 4.5-5k.

Remember your cars PI.

We make peak power at 4k. So at 5500 were completely out of steam

lilspanky9119 · October 15th, 2010, 12:47 PM

daily driving I shift around 3, thanks Sharkbait, you always have a good answer for me lol getting my 555's put on the front today, getting 555r for rear hopefully next week, and free dyno tomorrow morning, should give me an idea of where im at with everything.

sharkbait · October 15th, 2010, 12:53 PM

No problem lol.

Always here to help. Cant wait to see them dyno numbers man!

lilspanky9119 · October 15th, 2010, 12:58 PM

I didnt really intend to dyno it yet because I dont feel its ready, but there is that car show I was talking about before tomorrow and they are doing free dynos, so I cant pass up a free dyno. But I am pretty excited too! : )

dcook_14 · October 15th, 2010, 01:07 PM

Originally Posted by sharkbait

Remember your cars PI.

We make peak power at 4k. So at 5500 were completely out of steam

My car is a 4v

dcook_14 · October 15th, 2010, 01:07 PM

Originally Posted by lilspanky9119

I didnt really intend to dyno it yet because I dont feel its ready, but there is that car show I was talking about before tomorrow and they are doing free dynos, so I cant pass up a free dyno. But I am pretty excited too! : )

Free dyno??? I want one!

lilspanky9119 · October 15th, 2010, 01:08 PM

haha Brothers performance warehouse here in Deland FL is doing free dynos all day.

dcook_14 · October 15th, 2010, 01:10 PM

Originally Posted by lilspanky9119

haha Brothers performance warehouse here in Deland FL is doing free dynos all day.

I wish something around here had that. I have to drive 2 hours to even get to a dyno...

lilspanky9119 · October 15th, 2010, 01:17 PM

damm that sucks man. I was fortunate enough for Brothers Performance to be 15 minutes away. But btw your car is sick, I like it.

October 15th, 2010, 10:01 AM	#1
lilspanky9119 Enthusiast 98 Mustang GT 4.6L v8 Join Date: Jul 2010 Location: 386 FL Posts: 579 Blog Entries: 1 iTrader: 0 reviews	RPM's for manual I have a 5 speed 98 GT, without a tune. I seem to be shifting around 3500-4000 PRM, bc I feel my engine is revving pretty higher then it says and almost to where I should be shifting earlier. This is because my car's computer should be tuned correct? I know that with an automatic the shift points are bad, and can be easily corrected with a tune, but I thought with a stick it shouldn't be like that. I mean I could obviously just not shift until a higher RPM but I feel im hurting my engine, could that be? Thanks guys. __________________ 3:73 gears, Steed tri-ax, Mac o/r pro chamber mid pipe, w/ 2 chamber 2.5” Flowmasters,C&L upper plenum, Livernois PI intake swap kit, Steeda timing adjuster 16', FR 70mm throttle body, FR aluminum driveshaft, Lowering springs, BBK CAI

October 15th, 2010, 10:08 AM	#2
sharkbait Hooo Ha Ha 1997 Mustang GT 11.65 @ 115 Join Date: Apr 2009 Location: Pasadena MD Posts: 9,743 iTrader: 10 reviews	If your serious that your shifting at 3500 - 4000 them your not getting nearly as much performance out of you car as you can be. I spin my 5.4 to 5500 and my ol 4.6 to 6300 __________________ 410rwhp 520rwtq @ 12.9 psi

October 15th, 2010, 10:11 AM	#3
lilspanky9119 Enthusiast 98 Mustang GT 4.6L v8 Join Date: Jul 2010 Location: 386 FL Posts: 579 Blog Entries: 1 iTrader: 0 reviews	I know, I mean if I ever race, (which is rare ) I shift it later, but I feel my engine is not tuned to be shifting that late. I feel its wanting to shift way earlier, I have driven other cars and shift later in them so I know its not me. __________________ 3:73 gears, Steed tri-ax, Mac o/r pro chamber mid pipe, w/ 2 chamber 2.5” Flowmasters,C&L upper plenum, Livernois PI intake swap kit, Steeda timing adjuster 16', FR 70mm throttle body, FR aluminum driveshaft, Lowering springs, BBK CAI

October 15th, 2010, 11:17 AM	#4
sharkbait Hooo Ha Ha 1997 Mustang GT 11.65 @ 115 Join Date: Apr 2009 Location: Pasadena MD Posts: 9,743 iTrader: 10 reviews	Your cars factory redline is set for 6k. Your car dosnt need to be tuned lol. Its correctly tuned from the factory to be shifted at 6k. Its acctually a little better to shift about 5-5.5k or so because you dont make to much power up top. But yea dude your fine. These are high revving motors its all good. __________________ 410rwhp 520rwtq @ 12.9 psi

October 15th, 2010, 11:17 AM	#5
sharkbait Hooo Ha Ha 1997 Mustang GT 11.65 @ 115 Join Date: Apr 2009 Location: Pasadena MD Posts: 9,743 iTrader: 10 reviews	Are you talking about shifting when you race or shifting when your driving around town? __________________ 410rwhp 520rwtq @ 12.9 psi

October 15th, 2010, 11:25 AM	#6
lilspanky9119 Enthusiast 98 Mustang GT 4.6L v8 Join Date: Jul 2010 Location: 386 FL Posts: 579 Blog Entries: 1 iTrader: 0 reviews	True, cool then I feel better. When I race I shift higher I just feel like im hurting it __________________ 3:73 gears, Steed tri-ax, Mac o/r pro chamber mid pipe, w/ 2 chamber 2.5” Flowmasters,C&L upper plenum, Livernois PI intake swap kit, Steeda timing adjuster 16', FR 70mm throttle body, FR aluminum driveshaft, Lowering springs, BBK CAI

October 15th, 2010, 11:35 AM	#7
sharkbait Hooo Ha Ha 1997 Mustang GT 11.65 @ 115 Join Date: Apr 2009 Location: Pasadena MD Posts: 9,743 iTrader: 10 reviews	Yea i mean i wouldnt stay up there for long. But your plenty fine up in the higher rpms. I will say though after 5500 your really just doing more harm then good. NPI motors dont make much power up there, so your just kinda reving and wasting time. Thats untill you get boosted then shift around 6 __________________ 410rwhp 520rwtq @ 12.9 psi

October 15th, 2010, 12:43 PM	#9
dcook_14 Banned 2004 Mustang GT 12.35@114.08 w/ 1.88 60' Join Date: Feb 2009 Location: Waterloo, IA Posts: 7,015 Blog Entries: 2 iTrader: 7 reviews	I shift at about 2.5k when I'm DD'ing and about 6200 when I race. If I'm doing some spirited street drivng I take it up to 4.5-5k. __________________ Do the Right Thing, Cook. ~Zip.

October 15th, 2010, 12:47 PM	#11
lilspanky9119 Enthusiast 98 Mustang GT 4.6L v8 Join Date: Jul 2010 Location: 386 FL Posts: 579 Blog Entries: 1 iTrader: 0 reviews	daily driving I shift around 3, thanks Sharkbait, you always have a good answer for me lol getting my 555's put on the front today, getting 555r for rear hopefully next week, and free dyno tomorrow morning, should give me an idea of where im at with everything. __________________ 3:73 gears, Steed tri-ax, Mac o/r pro chamber mid pipe, w/ 2 chamber 2.5” Flowmasters,C&L upper plenum, Livernois PI intake swap kit, Steeda timing adjuster 16', FR 70mm throttle body, FR aluminum driveshaft, Lowering springs, BBK CAI

October 15th, 2010, 12:53 PM	#12
sharkbait Hooo Ha Ha 1997 Mustang GT 11.65 @ 115 Join Date: Apr 2009 Location: Pasadena MD Posts: 9,743 iTrader: 10 reviews	No problem lol. Always here to help. Cant wait to see them dyno numbers man! __________________ 410rwhp 520rwtq @ 12.9 psi

October 15th, 2010, 12:58 PM	#13
lilspanky9119 Enthusiast 98 Mustang GT 4.6L v8 Join Date: Jul 2010 Location: 386 FL Posts: 579 Blog Entries: 1 iTrader: 0 reviews	I didnt really intend to dyno it yet because I dont feel its ready, but there is that car show I was talking about before tomorrow and they are doing free dynos, so I cant pass up a free dyno. But I am pretty excited too! : ) __________________ 3:73 gears, Steed tri-ax, Mac o/r pro chamber mid pipe, w/ 2 chamber 2.5” Flowmasters,C&L upper plenum, Livernois PI intake swap kit, Steeda timing adjuster 16', FR 70mm throttle body, FR aluminum driveshaft, Lowering springs, BBK CAI

October 15th, 2010, 01:08 PM	#16
lilspanky9119 Enthusiast 98 Mustang GT 4.6L v8 Join Date: Jul 2010 Location: 386 FL Posts: 579 Blog Entries: 1 iTrader: 0 reviews	haha Brothers performance warehouse here in Deland FL is doing free dynos all day. __________________ 3:73 gears, Steed tri-ax, Mac o/r pro chamber mid pipe, w/ 2 chamber 2.5” Flowmasters,C&L upper plenum, Livernois PI intake swap kit, Steeda timing adjuster 16', FR 70mm throttle body, FR aluminum driveshaft, Lowering springs, BBK CAI

October 15th, 2010, 01:17 PM	#18
lilspanky9119 Enthusiast 98 Mustang GT 4.6L v8 Join Date: Jul 2010 Location: 386 FL Posts: 579 Blog Entries: 1 iTrader: 0 reviews	damm that sucks man. I was fortunate enough for Brothers Performance to be 15 minutes away. But btw your car is sick, I like it. __________________ 3:73 gears, Steed tri-ax, Mac o/r pro chamber mid pipe, w/ 2 chamber 2.5” Flowmasters,C&L upper plenum, Livernois PI intake swap kit, Steeda timing adjuster 16', FR 70mm throttle body, FR aluminum driveshaft, Lowering springs, BBK CAI

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