wheel hop

mrpork · 11-04-2005, 09:31 PM

i have asked you all for help before on this problem

well i still have it after putting all of the poly bushings in

any suggestions on what to try now

Big T · 11-04-2005, 09:33 PM

Quote:

Originally Posted by mrpork

i have asked you all for help before on this problem

well i still have it after putting all of the poly bushings in

any suggestions on what to try now

what kind of tires do you use? Also what mods have you done?

mrpork · 11-04-2005, 09:35 PM

factory tires and no mods really just exhaust and air intake

mrpork · 11-04-2005, 09:37 PM

i just hope that im not damaging the car by having this wheel hop

Big T · 11-05-2005, 12:05 AM

wheel hop is not good from what I hear. It can tear up your car's rearend. Avoid it at all costs. I've been getting it also but I don't drive my car much and I only get on it occassionally. They have launch kits to buy that are not cheap. I'm going to get some new tires for x mas (either nito 555r or some bfg drag radials). I heard that good tires help alot. I'll probably have to invest more money into this problem when I get my whipple or kb.

Dave B. · 11-05-2005, 12:25 AM

Wheel hop is from two things,

1. the back of the car is light, a mid engine car does not wheel hop due to all the weight being on top of the wheels,

2, the IRS is the cause of most of it, the IRS is also lighter than a solid axil thus allowing a wheel with a huge amount of energy being pumped into it to basicly fly off the ground,

the FIX: well there is not one, all you can do is spend a lot of money to temper it down a little, the best thing to stop it, is have big enough tires on the rear to keep the rear end hooked up under even the most aggressive acceleration,,,,I may be a little off on my IRS explanation,,,,just to qualify my statment,

**cobrabitn** · 11-05-2005, 12:27 AM

I would first do a search on these forums as this has been discussed numerous times. The best way to eliminate wheel hop 99% is to put a set of lowering springs on the car along with some Steeda IRS bushings. Now some people will say an IRS brace and give you other ideas but this is what worked for me and I didn't have to have CC plates.

1 set of Steeda IRS polyurethane bushings
1 set of Kenny Brown Sport Springs to lower the Cobra 1.5 inches

Follow the installation write up and get rid of the hop! Buy the lowering springs, get rid of the hop, and the next time someone asks, you too can tell them it worked for you.

Dave B. · 11-05-2005, 12:35 AM

did that compleatly get rid of all your wheel hop??

I mean can you get on it in any condition without hop??

**cobrabitn** · 11-05-2005, 12:40 AM

I did this to my 1999 Cobra (Club founding Cobra) and it eliminated it 99% on the street as it just made the tires sizzle instead of hop. (Burn rubber quietly)

On the drag strip (which I assume MrPork doesn't go to since he has a droptop) I put on drag radials and it eliminated the hop 99%. It would only do it every now and then and when it did, it wasn't an erratic bounce, more like a skitter if you know what I mean?

Put the springs on, lower the center of gravity, and the car will lose the hip hop.

Your mileage may vary!

Big Daddy · 11-05-2005, 01:57 AM

I agree with most of what Tony said but I put on the Kenny Brown Aluminum IRS bushing and found they worked even better than the polyurithane.

kilroy · 11-05-2005, 02:13 AM

Finally, I'll add that if you are at the track, a set of DRs properly inflated for racing (read deflated) or bias plys will eliminate your wheel hop issues. Well, it has for me.

TL04SVT · 11-05-2005, 03:22 AM

Quote:

Originally Posted by mrpork

i have asked you all for help before on this problem

well i still have it after putting all of the poly bushings in

any suggestions on what to try now

Two words..................SOLID AXLE

redsnake99 · 11-06-2005, 09:23 AM

There was no plaque for the wheel hop champion at fall drag day. My car did it every single time I ran. My car is lowered, has a diff brace, tires were deflated to 16 lbs., still hopped in the first three gears. I didn't bring the drag radials this time, scared of fusing the clutch again, like last spring.

Face it, with my power and otherwise stock rear suspension, I should stick to road racing and everyday driving. In the next week, I'll top 140,000 miles in Whistler.

kilroy · 11-06-2005, 12:42 PM

Quote:

Originally Posted by redsnake99

~tires were deflated to 16 lbs., still hopped in the first three gears. I didn't bring the drag radials this time, scared of fusing the clutch again, like last spring.

Bring the drag radials next time & upgrade the clutch

Linn@Amazon · 11-06-2005, 01:19 PM

full length sub frame connectors,irs bushings,upper and lower control arm bushings,springs,DRs,adjustable shocks..some cars will respond and calm down with only a few of these..others will take more..we recommend starting with FLSC and irs bushings and DRs..if it persists...delrin upper and lower control arm bushings,then shocks,if you want it lowered springs...you just have to do this is stages and see what the results are.

with the power these cars make even stock I highly reccomend the FLSC as a basic mod...you will never be able to eliminate wheel hop..that is just the nature of the IRS...you can calm it to a safe level but the only way to eliminate it completely is with a solid axle

11-04-2005, 09:31 PM	#1
mrpork SCMC Member Join Date: Apr 2005 Location: rhode island Posts: 409	wheel hop i have asked you all for help before on this problem well i still have it after putting all of the poly bushings in any suggestions on what to try now

11-05-2005, 12:05 AM	#5
Big T Registered User Join Date: Feb 2004 Location: Madisonville, Louisiana Posts: 249	wheel hop is not good from what I hear. It can tear up your car's rearend. Avoid it at all costs. I've been getting it also but I don't drive my car much and I only get on it occassionally. They have launch kits to buy that are not cheap. I'm going to get some new tires for x mas (either nito 555r or some bfg drag radials). I heard that good tires help alot. I'll probably have to invest more money into this problem when I get my whipple or kb. __________________ 2003 black anniversary edition cobra Current Mods: Polished 2.3L whipple Kenne Bell BAP 60# injectors SCT BA 2600 3.5 whipple pulley with aux idler kit 2# LFP lower pulley dyno tune by L&L Automotive flowmaster american thunder catback bbk x-pipe with high flow cats bbk cai Accufab polished TB polished canton coolant reservoir tank LFP dual pass heat exchanger Polished intercooler reservoir tank upr polished underhood kit with hood prop Autolite racing spark plugs .032 gap hilton boost overlay Mickey Thompson ET Streets 275/40/17 566rwhp 536rwtq on mustang dyno Mods to come soon in order: suspension upgrade 2.75 upper pulley waiting for install

11-05-2005, 12:25 AM	#6
Dave B. Registered User Join Date: Dec 2003 Location: Florida Posts: 479	Wheel hop is from two things, 1. the back of the car is light, a mid engine car does not wheel hop due to all the weight being on top of the wheels, 2, the IRS is the cause of most of it, the IRS is also lighter than a solid axil thus allowing a wheel with a huge amount of energy being pumped into it to basicly fly off the ground, the FIX: well there is not one, all you can do is spend a lot of money to temper it down a little, the best thing to stop it, is have big enough tires on the rear to keep the rear end hooked up under even the most aggressive acceleration,,,,I may be a little off on my IRS explanation,,,,just to qualify my statment, __________________ 03 Cobra 10th Anniversary Red Stiegermeier Stage 4 ported Eaton 511.9 RWHP 467.7 RWTQ 2,76 Billetflow SC pulley Billetflow Aux-idler all billetflow idler pulleys Accufab single blade MAC cold air BBK Ceramic LT headers X-pipe Magnaflow exhaust Gordsford heat exchanger PST Carbon fiber drive shaft lowered 1.5 inches 18 X 9's AFS running Toyos 275/35/18's front 18 X 10.5's AFS running Toyos 295/35/18's rear Cobra "R" rear wing Cobra "R" hood 4:10 gears Pedator tuned Pro short shifter Hurst "T" handle Promotion Clutch Quad AEM widband gauge Boost & fuel Press gauges drilled & slotted rotors

11-05-2005, 12:27 AM	#7
cobrabitn Dr Jekyll on the street, Mr Hyde on the track Join Date: Jun 2001 Location: Rock Hill SC Posts: 14,636	I would first do a search on these forums as this has been discussed numerous times. The best way to eliminate wheel hop 99% is to put a set of lowering springs on the car along with some Steeda IRS bushings. Now some people will say an IRS brace and give you other ideas but this is what worked for me and I didn't have to have CC plates. 1 set of Steeda IRS polyurethane bushings 1 set of Kenny Brown Sport Springs to lower the Cobra 1.5 inches Follow the installation write up and get rid of the hop! Buy the lowering springs, get rid of the hop, and the next time someone asks, you too can tell them it worked for you. __________________ Cobrabitn 2016 Ruby Red Metallic with Caribou accent F-350 Crew Cab Stump Puller! 6.7 Diesel Automatic with Chrome Package, Off Road Package, 3.55 Locking axles, and Ultimate Lariat Interior Trim Package! 2017 Shelby GT350 Coupe - track car! Mods: JLT True Cold Air oil catch can 2009 Vista Blue Shelby GT 500 Coupe - Garage Queen Tinted Windows JLT True Cold Air Kit Pro-Dyno Tune 526 rwhp - 511 rwtq 1994 Rio Red Indy Pace Car #22 "Runabout" Snake in the grill MGW shift knob 1996 SVT Cobra Wheels 1969 New Lime Mustang Mach 1 Sportsroof - Second owner - bone stock with shaker. One SVT Cobra, one Shelby GT500, one 69 mach 1, and a Shelby GT350 is better than nothing! Custom Data Plates for your Mustang or Ford! Buy "Cool Merchandise" at Data Plates Plus www.dataplatesplus.com See my MSR Video here!

11-05-2005, 12:35 AM	#8
Dave B. Registered User Join Date: Dec 2003 Location: Florida Posts: 479	did that compleatly get rid of all your wheel hop?? I mean can you get on it in any condition without hop?? __________________ 03 Cobra 10th Anniversary Red Stiegermeier Stage 4 ported Eaton 511.9 RWHP 467.7 RWTQ 2,76 Billetflow SC pulley Billetflow Aux-idler all billetflow idler pulleys Accufab single blade MAC cold air BBK Ceramic LT headers X-pipe Magnaflow exhaust Gordsford heat exchanger PST Carbon fiber drive shaft lowered 1.5 inches 18 X 9's AFS running Toyos 275/35/18's front 18 X 10.5's AFS running Toyos 295/35/18's rear Cobra "R" rear wing Cobra "R" hood 4:10 gears Pedator tuned Pro short shifter Hurst "T" handle Promotion Clutch Quad AEM widband gauge Boost & fuel Press gauges drilled & slotted rotors

11-04-2005, 09:35 PM	#3
mrpork SCMC Member Join Date: Apr 2005 Location: rhode island Posts: 409	factory tires and no mods really just exhaust and air intake

11-04-2005, 09:37 PM	#4
mrpork SCMC Member Join Date: Apr 2005 Location: rhode island Posts: 409	i just hope that im not damaging the car by having this wheel hop

11-05-2005, 12:40 AM	#9
cobrabitn Dr Jekyll on the street, Mr Hyde on the track Join Date: Jun 2001 Location: Rock Hill SC Posts: 14,636	I did this to my 1999 Cobra (Club founding Cobra) and it eliminated it 99% on the street as it just made the tires sizzle instead of hop. (Burn rubber quietly) On the drag strip (which I assume MrPork doesn't go to since he has a droptop) I put on drag radials and it eliminated the hop 99%. It would only do it every now and then and when it did, it wasn't an erratic bounce, more like a skitter if you know what I mean? Put the springs on, lower the center of gravity, and the car will lose the hip hop. Your mileage may vary! __________________ Cobrabitn 2016 Ruby Red Metallic with Caribou accent F-350 Crew Cab Stump Puller! 6.7 Diesel Automatic with Chrome Package, Off Road Package, 3.55 Locking axles, and Ultimate Lariat Interior Trim Package! 2017 Shelby GT350 Coupe - track car! Mods: JLT True Cold Air oil catch can 2009 Vista Blue Shelby GT 500 Coupe - Garage Queen Tinted Windows JLT True Cold Air Kit Pro-Dyno Tune 526 rwhp - 511 rwtq 1994 Rio Red Indy Pace Car #22 "Runabout" Snake in the grill MGW shift knob 1996 SVT Cobra Wheels 1969 New Lime Mustang Mach 1 Sportsroof - Second owner - bone stock with shaker. One SVT Cobra, one Shelby GT500, one 69 mach 1, and a Shelby GT350 is better than nothing! Custom Data Plates for your Mustang or Ford! Buy "Cool Merchandise" at Data Plates Plus www.dataplatesplus.com See my MSR Video here!

11-05-2005, 01:57 AM	#10
Big Daddy Registered User Join Date: Dec 2001 Location: Asheville, NC Posts: 4,921	I agree with most of what Tony said but I put on the Kenny Brown Aluminum IRS bushing and found they worked even better than the polyurithane. __________________ 2008 Shelby GT500 White w/Blue Stripes STOCK AND STAYING THAT WAY! Kenny Brown '01 Cobra S Serial # 01-047C True Blue Performance Forged Short Block FR500 Heads & Cams, Fluidyne Radiator McLeod Clutch and aluminum flywheel Aluminum Driveshaft, UPR adjustable clutch cable GT40 Fuel Tank & pumps, Kenne Bell Boost-a-Pump, 60lb injectors, Vortech T-Trim W/After Cooler, 2.9" RR Pulley Anderson Power Pipe, Accufab Throttle Body (USELESS IMHO), MGW Shifter with the blue handle KB Oil Cooling system, KB Differential Cooler Autometer Phantom boost and fuel pressure guages Kenny Brown Aero Kit, Kooks LT Headers H-Pipe with H-flow cats, Bassani Cat Back Snow Boost Cooler T56 Six Speed Tranny MGW BLING-BLING interior stuff 645RWHP and 558RWTQ

11-05-2005, 02:13 AM	#11
kilroy Registered User Join Date: Oct 2004 Location: Simpsonville, SC Posts: 312	Finally, I'll add that if you are at the track, a set of DRs properly inflated for racing (read deflated) or bias plys will eliminate your wheel hop issues. Well, it has for me. __________________

11-06-2005, 09:23 AM	#13
redsnake99 SCMC Member Join Date: Jun 2001 Location: NV, NY, SC Posts: 1,258	There was no plaque for the wheel hop champion at fall drag day. My car did it every single time I ran. My car is lowered, has a diff brace, tires were deflated to 16 lbs., still hopped in the first three gears. I didn't bring the drag radials this time, scared of fusing the clutch again, like last spring. Face it, with my power and otherwise stock rear suspension, I should stick to road racing and everyday driving. In the next week, I'll top 140,000 miles in Whistler. __________________ Dave Stanfield - SCMC 424

11-06-2005, 01:19 PM	#15
Linn@Amazon Registered User Join Date: Jun 2005 Posts: 198	full length sub frame connectors,irs bushings,upper and lower control arm bushings,springs,DRs,adjustable shocks..some cars will respond and calm down with only a few of these..others will take more..we recommend starting with FLSC and irs bushings and DRs..if it persists...delrin upper and lower control arm bushings,then shocks,if you want it lowered springs...you just have to do this is stages and see what the results are. with the power these cars make even stock I highly reccomend the FLSC as a basic mod...you will never be able to eliminate wheel hop..that is just the nature of the IRS...you can calm it to a safe level but the only way to eliminate it completely is with a solid axle

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