Rev limiter ??

Mustang_289 · 09-05-2002, 06:43 AM

We've got an 88GT with a 5-speed, looking to take it to the track soon with my 17-year old son. He's learning the ropes with shifting and dragging a car.

Is there a built in rev limiter on these cars?

HiFlow5 0 · 09-05-2002, 08:39 AM

Yes, I believe its at 6,125 rpms. If your car is pretty much stock I wouldn't shift it that high. I believe power drops off as the rpms get that high. Maybe someone can post HP curves for a stock motor, to determine what the best shift points are.

bigblockcoupe · 09-05-2002, 09:06 AM

actually the rev limit is 6,250 but if the car is pretty much stock anything over 5500 is just killing power tell him to shift at 5250-5500 to achieve your best times

bigred90gt · 09-05-2002, 11:03 AM

Just out of curiosity, given the mods in my sig, what should I shift at? I have the 6000 rpm plug in the MSD box. Thanks
Caymon

Dark_5.0 · 09-05-2002, 11:22 AM

I would guess around 5400rpms....That is where my 5.0 runs the best.

Eric4Nitrous · 09-05-2002, 11:39 AM

Mine runs best at 9,000 rpm's

gofastmercury · 09-05-2002, 11:44 AM

MY mostly stock 5.0 is the fastest @ shifting 5400 in first and 5200 after that. There is a big spread between 1-2 and it kills alittle torque so the tires dont spin too bad. It works for me.

Dark_5.0 · 09-05-2002, 12:15 PM

Gofastmercury Do you have any pics of your Comet. The reason I ask is I dont think that I have ever seen one.

Later,

gofastmercury · 09-05-2002, 12:24 PM

Just the one in users rides. one on these days I'll get a camera....

drtbiker · 09-05-2002, 01:24 PM

I SHIFT AT 5500 AND RAN THE BEST TIME on my car almost all stock but gears and exaust

09-05-2002, 02:36 PM

bigred-
6000 rpms is a little high if you have stock heads and cam. Shifting somewhere between 5200 & 5500 rpms should be about right for a mostly stock '86-'93 Mustang. Of course, if your bored .040 over engine has bigger heads & cam...then by all means rev the crap out of it!

09-05-2002, 06:43 AM	#1
Mustang_289 Registered Member Join Date: Sep 2001 Posts: 512	Rev limiter ?? We've got an 88GT with a 5-speed, looking to take it to the track soon with my 17-year old son. He's learning the ropes with shifting and dragging a car. Is there a built in rev limiter on these cars?

09-05-2002, 08:39 AM	#2
HiFlow5 0 Registered Member Join Date: Mar 2000 Location: Springfield, Ma, usa Posts: 706	Yes, I believe its at 6,125 rpms. If your car is pretty much stock I wouldn't shift it that high. I believe power drops off as the rpms get that high. Maybe someone can post HP curves for a stock motor, to determine what the best shift points are. __________________ NewEngland Auto www.baystategearheads.com -91 Mustang Coupe, ex 4cyl (sold) -99 F150, 3" lift, 35" Procomps, Magnaflow exhaust Last edited by HiFlow5 0; 09-05-2002 at 03:41 PM..

09-05-2002, 09:06 AM	#3
bigblockcoupe Registered Member Join Date: Aug 2002 Location: broken arrow Posts: 212	actually the rev limit is 6,250 but if the car is pretty much stock anything over 5500 is just killing power tell him to shift at 5250-5500 to achieve your best times __________________ Rice Haters Club member #68 '93 Cobra 10.20@135 '89 Gt Coupe 12.20@115

09-05-2002, 11:03 AM	#4
bigred90gt 2 Stangs in the Stable Join Date: Apr 2002 Location: Baytown, TX Posts: 1,209	Just out of curiosity, given the mods in my sig, what should I shift at? I have the 6000 rpm plug in the MSD box. Thanks Caymon __________________ '90 GT Under construction Best E.T. = Fast @ High Speeds - OK So I Lie. So What!!! 04 F-150 STX 4.2L 5 spd Rice Haters Club Member #128

09-05-2002, 11:22 AM	#5
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	I would guess around 5400rpms....That is where my 5.0 runs the best. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

09-05-2002, 11:39 AM	#6
Eric4Nitrous Registered Member Join Date: Jan 2002 Location: Va Posts: 1,122	Mine runs best at 9,000 rpm's __________________ 68 Camaro Gene Fulton 632ci Two stages of Jug 8.41 164mph Rockingham 1-26-03

09-05-2002, 11:44 AM	#7
gofastmercury Registered Member Join Date: May 2001 Location: calgary alberta canada Posts: 366	MY mostly stock 5.0 is the fastest @ shifting 5400 in first and 5200 after that. There is a big spread between 1-2 and it kills alittle torque so the tires dont spin too bad. It works for me. __________________ 93LXcopcarSOLD14.3@96 @ 4500ft 2.02 60ft on street tires. my 67 ranchero NOT A 390 ANY MORE! 460! 3.70's cast manifolds, comp cams 262H, performer, 750DP 100K out of 79 F250 NEW(oct20/02)14.58@95mph 2.3 60 ft corrects to:13.86@100 66 merc comet351w, isky roller 600 lift 268/260@.050, vic jr. 700DP, 5000stall, 4.56's c-4, 3400lbs with driver 12.3@110 @ 4000ft 1.69 60 ft corrects to:11.69@115

09-05-2002, 12:15 PM	#8
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Gofastmercury Do you have any pics of your Comet. The reason I ask is I dont think that I have ever seen one. Later, __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

09-05-2002, 12:24 PM	#9
gofastmercury Registered Member Join Date: May 2001 Location: calgary alberta canada Posts: 366	Just the one in users rides. one on these days I'll get a camera.... __________________ 93LXcopcarSOLD14.3@96 @ 4500ft 2.02 60ft on street tires. my 67 ranchero NOT A 390 ANY MORE! 460! 3.70's cast manifolds, comp cams 262H, performer, 750DP 100K out of 79 F250 NEW(oct20/02)14.58@95mph 2.3 60 ft corrects to:13.86@100 66 merc comet351w, isky roller 600 lift 268/260@.050, vic jr. 700DP, 5000stall, 4.56's c-4, 3400lbs with driver 12.3@110 @ 4000ft 1.69 60 ft corrects to:11.69@115

09-05-2002, 01:24 PM	#10
drtbiker Registered Member Join Date: Jan 2002 Location: Mt. Prospect,IL Posts: 474	I SHIFT AT 5500 AND RAN THE BEST TIME on my car almost all stock but gears and exaust __________________ 87-ford-mustang-SOLD! mods: 3:73's, off road h-pipe, b303 cam in gt- 40 motor w/ Power Plus intake, edelbrock 70mm tb & egr spacer, 72mm C&L, bbk long tubes, tremec tranny, centerforce dual friction clutch, upr and lwr CA's 255lph FP and soon more to come.... when i have money again SOME ADVICE Don't do burn outs in reverse it is very expensive New times with dead hook on dr's 13.27@103 with 2.0 60 foots w/100lb system Fastest time to date: 12.8@113

09-05-2002, 02:36 PM	#11
Simi Stang Guest Posts: n/a	bigred90gt bigred- 6000 rpms is a little high if you have stock heads and cam. Shifting somewhere between 5200 & 5500 rpms should be about right for a mostly stock '86-'93 Mustang. Of course, if your bored .040 over engine has bigger heads & cam...then by all means rev the crap out of it!

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