E-303 Cam.. New install on stock motor. Do they really Idle bad??

89FHPLX · 01-06-2002, 10:47 PM

Yep, just found out that there is rumors about the E-303 cam. I new to this about cams. I am Installing one on Monday so I need to know if these cams really have a idle problem.

And How much Horsepower will I get with a E-303 cam on a stock motor. I know I got some mods but lets just say I have a Bone stock motor.

NO SLO PK · 01-06-2002, 11:23 PM

My buddies and I who run E-cams don't have any idle issues. I'm sure some folks might have problems.

How much hp will you get by installing an E-cam on a bone stock motor? I've never measured it, but I believe the answer is hardly any, less than 10 if I had to bet.

Coupe5oh · 01-07-2002, 12:13 AM

yea hate to say it, but you will actually lose performance in the 1/4 if you run, with 3.08's your car will be slower at lower rpms until it reaches powerband, then again ive heard of people gaining a little with a stock motor, but usually they have 3.73 grs.

The h.o stock cam is well matched with stock intake and heads, now get gears and intake for a noticeable increase, or heads are the most important as im sure you know, the cam shouldnt idle to rough, and will sound great.

Unit 5302 · 01-07-2002, 01:02 AM

Many people experiance idle surge with the E cam. Most of the time the problem is almost impossible to find. You're not going to gain anything with a stock engine. At least not enough to mention.

89FHPLX · 01-07-2002, 01:43 AM

Well, that's good to know. Anyways I wanted to know if it was true or not. I got stock upper intake ported and polish, and a lower intake also ported. I should see Hp from that with the E-303 cam.

Thanks Guys

Keep spanking those Ricers!!!

HiFlow5 0 · 01-07-2002, 09:05 AM

you won't much gain from a cam with a stock motor, even if you intake is ported. you may see more gain if you port you heads, and a bigger gain with aftermarket heads.

as far as idleing goes, you should set your idle slightly higher with the e-cam. i have my car idleing around 900 to 1000rpm's. i don't have any surge problems and it sounds great.

429mustang · 01-07-2002, 06:28 PM

I have the E-303 cam in my car now, I noticed a slight difference in power, it's more in the upper rpms. I have the idle set around 750 rpm, I have no idle problems. I say do it up, especially if you plan on beefing your car up more in the future.

exgmguy · 01-08-2002, 06:51 AM

E-cam idle problems are easy to find. It runs rich at idle, throwing the computer for a loop.

The best fix is a custom chip, but I gave mine a slight vacuum leak at the tree.

Skyman · 01-08-2002, 01:44 PM

Mines the best its ever been now.

It idles at 1600-1700 when I put in the clutch driving.

When I come to a complete stop it comes down to 1000-1100.

Skyler

rick8750 · 01-08-2002, 03:42 PM

I have E303 on my sick 89 Pony (threw a rear ball!) I thought it idled fine. You'll need a chip burned and slight TPS bump over 105v @idle Any amount of port you've added to the heads will help. I'd have to agree that 10HP is expected.

89FHPLX · 01-09-2002, 12:28 AM

Well I am going to finish the car sometime on Wednesday. I will let all of you how it went and how the car is running

gtsr515 · 01-09-2002, 11:18 PM

Hello, years ago a well respected tuner (still in business today!), did a test on a stock 5.0, swapping a stock intake for a GT-40 and dyno'd the difference, here's the results.

Stock Intake v.s GT-40 was a 12 horse increase
Stock cam for an E-303 was a 7 horse increase
Stock heads for GT-40's was 17 horse increase

now, these were done independant of each other, not combined.

but no matter which one you do, without at least 3.73 gears, you may even slow down with the 3.08's.

Good luck!

89FHPLX · 01-10-2002, 01:04 AM

Hey guys, ok my car is running now. Here is the deal, remember I put a ported stock upper and lower intake, and a E-303 cam. I also had to change the Timeing Chain because it was worn out. I also replace the roller lifters. the car feels stonger. the power is there even if a I have the 3.08's on the car. I will put in gears in the future but I'm thinking of 3.55's because I dont race my car much like many do. maybe 6 times a year. Today a Mustang Bullit(spelling?) try to pass me today and he could'nt even catch up. I also found out that my Stock heads are a little different from the stock heads of a 87-93 mustangs. I dont know but I think that from Factory they made Special Service Mustang with a little more Power.

gtsr515 · 01-10-2002, 03:45 PM

Interceptor heads are E7TE's, just like a H.O. , whoever told you they were different is probably enthusiastically optimistic, unfortunetly, they are the same heads. But, as you know, there were several other genuine differences.

I hate to say this, because I always get slammed, but 3.55's are good for only 1 thing - Road Racing, they are the worst drag racing gear there is, it forces you to shift 4rth gear to close to the finish line and you go through way below your power peak, bad choice, stay with the 3.08's, they will allow you to go through in 3rd gear at your power peak, or get 3.73's.

Trust me, been there, done that!

89FHPLX · 01-11-2002, 01:07 AM

HMM?? good to know

Mach 1 · 01-11-2002, 10:19 AM

Quote:

Originally posted by exgmguy
E-cam idle problems are easy to find. It runs rich at idle, throwing the computer for a loop.

The best fix is a custom chip, but I gave mine a slight vacuum leak at the tree.

easy to find and custom chip seems like a contradiction to me?

if they are so easy to find, why do you have to give yours a vacuum leak?

8950LX · 01-12-2002, 01:26 AM

With stock E7's don't count on much of an increase with any cam. If you only see the strip 6 times a year I would go with the 3.55's. With good traction you will still accelerate quicker than the 3.08's. You won't be disappointed.

Bill

89FHPLX · 01-12-2002, 02:23 AM

yeah I know I need gears but right now I cant. I just had Install for free two solid motor mounts because the stock ones where really bad. The car now with the mods I have takes off strong. The E-cam and the porting we did help alot. the car runs great and idel's at 900RPM. Anyways, I think a E-cam does do a diffrence. the car was check by a Pro here in Miami that only works on mustang and he's Top dog here. he said's my car runs to strong with the mods I have, meaning that it's rare that he see's that. Still I guess trooper Mustangs have slighty modified heads and other things. Even without the mods I have, the car run strong and keep up with other mild mod mustangs.

Anyways, keep showing those "Ricers" who is the Boss!

DZEE'S LX · 01-14-2002, 12:45 AM

How does the E-cam sound? Just curious because I'm putting one in next week.
BTW as stated before your heads and HO engine are the same (from the factory) as any stock stang. The heads must have been modified by someone after it left the fleet. They usually don't mess with police car engines, if there is a warantee it would become immediately void. Depending on the state who ordered it, Special Service cars mostly got functional options like oil coolers, 130 amp alternators, silicone hoses, and other things not necessarily related to speed. There is a Special Service site out there that will tell you the whole story - can't remember the link.

Dan

Jeb_Bush_2000 · 01-14-2002, 01:05 AM

SSP Mustang engines were identical to the civilian cars, performance-wise.

01-06-2002, 10:47 PM	#1
89FHPLX Registered Member Join Date: Aug 2000 Location: Miami, Florida Posts: 116	E-303 Cam.. New install on stock motor. Do they really Idle bad?? Yep, just found out that there is rumors about the E-303 cam. I new to this about cams. I am Installing one on Monday so I need to know if these cams really have a idle problem. And How much Horsepower will I get with a E-303 cam on a stock motor. I know I got some mods but lets just say I have a Bone stock motor. __________________ 89 Mustang Police Interceptor Cobra Upper Intake GT-40 Lower Intake Ported TFS Track Heats Heads Crane Cams 2040 Reground By Crawford Performance 1.6 Scorpion Roller Rokers FMR 65mm TB BBk Equal Lenth Shorty Headers Billit Fuel Pressure Regulator (45Lbs) Under Drive Pullies Moroso Cold Air MSD Blaster TFI Coil X-Pipe with 2 chamber Flowmaster Cobra water pump pully 34 Degree Total Timing with spout out Short Belt No Air Silencer Hurst Short Throw Shifter Taylor 8.8 Blue Wires 3.8 Taurus Electric Fan 3.08 Gears (soon 3.55's) 19# Injectors (soon 24lb) Stock mass air

01-06-2002, 11:23 PM	#2
NO SLO PK Registered Member Join Date: Mar 1999 Location: Arcadia, CA, USA Posts: 731	My buddies and I who run E-cams don't have any idle issues. I'm sure some folks might have problems. How much hp will you get by installing an E-cam on a bone stock motor? I've never measured it, but I believe the answer is hardly any, less than 10 if I had to bet. __________________ Russ L '91 LX - 331 w/ Procharger '03 Cobra Convertible - Pullied '94 Lightning '65 Mustang Coupe

01-07-2002, 01:43 AM	#5
89FHPLX Registered Member Join Date: Aug 2000 Location: Miami, Florida Posts: 116	Well, that's good to know. Anyways I wanted to know if it was true or not. I got stock upper intake ported and polish, and a lower intake also ported. I should see Hp from that with the E-303 cam. Thanks Guys Keep spanking those Ricers!!! __________________ 89 Mustang Police Interceptor Cobra Upper Intake GT-40 Lower Intake Ported TFS Track Heats Heads Crane Cams 2040 Reground By Crawford Performance 1.6 Scorpion Roller Rokers FMR 65mm TB BBk Equal Lenth Shorty Headers Billit Fuel Pressure Regulator (45Lbs) Under Drive Pullies Moroso Cold Air MSD Blaster TFI Coil X-Pipe with 2 chamber Flowmaster Cobra water pump pully 34 Degree Total Timing with spout out Short Belt No Air Silencer Hurst Short Throw Shifter Taylor 8.8 Blue Wires 3.8 Taurus Electric Fan 3.08 Gears (soon 3.55's) 19# Injectors (soon 24lb) Stock mass air

01-07-2002, 09:05 AM	#6
HiFlow5 0 Registered Member Join Date: Mar 2000 Location: Springfield, Ma, usa Posts: 706	you won't much gain from a cam with a stock motor, even if you intake is ported. you may see more gain if you port you heads, and a bigger gain with aftermarket heads. as far as idleing goes, you should set your idle slightly higher with the e-cam. i have my car idleing around 900 to 1000rpm's. i don't have any surge problems and it sounds great. __________________ NewEngland Auto www.baystategearheads.com -91 Mustang Coupe, ex 4cyl (sold) -99 F150, 3" lift, 35" Procomps, Magnaflow exhaust

01-07-2002, 06:28 PM	#7
429mustang Registered Member Join Date: May 2001 Location: westerville, OH USA Posts: 618	I have the E-303 cam in my car now, I noticed a slight difference in power, it's more in the upper rpms. I have the idle set around 750 rpm, I have no idle problems. I say do it up, especially if you plan on beefing your car up more in the future. __________________ 1990 Notchback: BBK Ceramic Coated Full length headers, Dr. Gas 3"- 2 1/2" x-pipe, Flowmaster 40's/turndowns.

01-07-2002, 12:13 AM	#3
Coupe5oh Registered Member Join Date: Nov 2001 Location: SanAntonio, Tx Posts: 734	yea hate to say it, but you will actually lose performance in the 1/4 if you run, with 3.08's your car will be slower at lower rpms until it reaches powerband, then again ive heard of people gaining a little with a stock motor, but usually they have 3.73 grs. The h.o stock cam is well matched with stock intake and heads, now get gears and intake for a noticeable increase, or heads are the most important as im sure you know, the cam shouldnt idle to rough, and will sound great.

01-07-2002, 01:02 AM	#4
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	Many people experiance idle surge with the E cam. Most of the time the problem is almost impossible to find. You're not going to gain anything with a stock engine. At least not enough to mention.

01-08-2002, 06:51 AM	#8
exgmguy Registered Member Join Date: Feb 1999 Location: Utica, Michigan Posts: 2,631	E-cam idle problems are easy to find. It runs rich at idle, throwing the computer for a loop. The best fix is a custom chip, but I gave mine a slight vacuum leak at the tree. __________________ 1988 Mustang GT stock bottom 302, C4 10.9 @ 128 with 8 psi of Novi 1000 boost!----STOLEN 1989 Mustang notchback Warmed up 306 with a Procharger.

01-08-2002, 01:44 PM	#9
Skyman I need 110mph Trap Speed! Join Date: Feb 1999 Location: So, CA Posts: 4,315	Mines the best its ever been now. It idles at 1600-1700 when I put in the clutch driving. When I come to a complete stop it comes down to 1000-1100. Skyler __________________ 2001 BMW M3 6spd 12.79@108 RIP ---- 1993 Notch w/ 98 4V 4.6 Fasttt... -1989 Saleen Mustang #406- 12.32@109 -1999 Black Cobra Coupe- JBA Shorties, Bassani Cat-X, Magnaflow 3", Pulleys, 85mm Pro-M, Ported Intake, Soild Rear w/ 4.30s, Tubular Front End, X2C arms, 13lb batt, few others.

01-08-2002, 03:42 PM	#10
rick8750 Registered Member Join Date: Jan 2002 Location: Houston, Tx Posts: 15	E303 on Stock I have E303 on my sick 89 Pony (threw a rear ball!) I thought it idled fine. You'll need a chip burned and slight TPS bump over 105v @idle Any amount of port you've added to the heads will help. I'd have to agree that 10HP is expected. __________________ 87 DropTop NA (Project Sleeper 12.8) BBK Shorty Headers, 2 chamber FlowMasters dumped at axle. 3.73 gear, Crank Pully, 1.7 RollerRockers, MSD Blaster Kit 9MM wireset, ported upper and lower, blocked EGR port. 65MM EGR plate and TB, k&N filtercharger, Electric fan, Homespun ramair, ratio eprom, 24# injectors, 1" phenolic plenum spacer, FR Fuel pump, 15 deg TDC Best 12.886 @ 108.56

01-09-2002, 12:28 AM	#11
89FHPLX Registered Member Join Date: Aug 2000 Location: Miami, Florida Posts: 116	Well I am going to finish the car sometime on Wednesday. I will let all of you how it went and how the car is running __________________ 89 Mustang Police Interceptor Cobra Upper Intake GT-40 Lower Intake Ported TFS Track Heats Heads Crane Cams 2040 Reground By Crawford Performance 1.6 Scorpion Roller Rokers FMR 65mm TB BBk Equal Lenth Shorty Headers Billit Fuel Pressure Regulator (45Lbs) Under Drive Pullies Moroso Cold Air MSD Blaster TFI Coil X-Pipe with 2 chamber Flowmaster Cobra water pump pully 34 Degree Total Timing with spout out Short Belt No Air Silencer Hurst Short Throw Shifter Taylor 8.8 Blue Wires 3.8 Taurus Electric Fan 3.08 Gears (soon 3.55's) 19# Injectors (soon 24lb) Stock mass air

01-09-2002, 11:18 PM	#12
gtsr515 Registered Member Join Date: Nov 2001 Location: Sunny, Hot, Sebring, Florida Posts: 725	Hello, years ago a well respected tuner (still in business today!), did a test on a stock 5.0, swapping a stock intake for a GT-40 and dyno'd the difference, here's the results. Stock Intake v.s GT-40 was a 12 horse increase Stock cam for an E-303 was a 7 horse increase Stock heads for GT-40's was 17 horse increase now, these were done independant of each other, not combined. but no matter which one you do, without at least 3.73 gears, you may even slow down with the 3.08's. Good luck! __________________ Remember...2nd place is 1st place for losers!

01-10-2002, 01:04 AM	#13
89FHPLX Registered Member Join Date: Aug 2000 Location: Miami, Florida Posts: 116	Hey guys, ok my car is running now. Here is the deal, remember I put a ported stock upper and lower intake, and a E-303 cam. I also had to change the Timeing Chain because it was worn out. I also replace the roller lifters. the car feels stonger. the power is there even if a I have the 3.08's on the car. I will put in gears in the future but I'm thinking of 3.55's because I dont race my car much like many do. maybe 6 times a year. Today a Mustang Bullit(spelling?) try to pass me today and he could'nt even catch up. I also found out that my Stock heads are a little different from the stock heads of a 87-93 mustangs. I dont know but I think that from Factory they made Special Service Mustang with a little more Power. __________________ 89 Mustang Police Interceptor Cobra Upper Intake GT-40 Lower Intake Ported TFS Track Heats Heads Crane Cams 2040 Reground By Crawford Performance 1.6 Scorpion Roller Rokers FMR 65mm TB BBk Equal Lenth Shorty Headers Billit Fuel Pressure Regulator (45Lbs) Under Drive Pullies Moroso Cold Air MSD Blaster TFI Coil X-Pipe with 2 chamber Flowmaster Cobra water pump pully 34 Degree Total Timing with spout out Short Belt No Air Silencer Hurst Short Throw Shifter Taylor 8.8 Blue Wires 3.8 Taurus Electric Fan 3.08 Gears (soon 3.55's) 19# Injectors (soon 24lb) Stock mass air

01-10-2002, 03:45 PM	#14
gtsr515 Registered Member Join Date: Nov 2001 Location: Sunny, Hot, Sebring, Florida Posts: 725	Interceptor heads are E7TE's, just like a H.O. , whoever told you they were different is probably enthusiastically optimistic, unfortunetly, they are the same heads. But, as you know, there were several other genuine differences. I hate to say this, because I always get slammed, but 3.55's are good for only 1 thing - Road Racing, they are the worst drag racing gear there is, it forces you to shift 4rth gear to close to the finish line and you go through way below your power peak, bad choice, stay with the 3.08's, they will allow you to go through in 3rd gear at your power peak, or get 3.73's. Trust me, been there, done that! __________________ Remember...2nd place is 1st place for losers!

01-11-2002, 01:07 AM	#15
89FHPLX Registered Member Join Date: Aug 2000 Location: Miami, Florida Posts: 116	HMM?? good to know __________________ 89 Mustang Police Interceptor Cobra Upper Intake GT-40 Lower Intake Ported TFS Track Heats Heads Crane Cams 2040 Reground By Crawford Performance 1.6 Scorpion Roller Rokers FMR 65mm TB BBk Equal Lenth Shorty Headers Billit Fuel Pressure Regulator (45Lbs) Under Drive Pullies Moroso Cold Air MSD Blaster TFI Coil X-Pipe with 2 chamber Flowmaster Cobra water pump pully 34 Degree Total Timing with spout out Short Belt No Air Silencer Hurst Short Throw Shifter Taylor 8.8 Blue Wires 3.8 Taurus Electric Fan 3.08 Gears (soon 3.55's) 19# Injectors (soon 24lb) Stock mass air

01-12-2002, 01:26 AM	#17
8950LX Registered Member Join Date: Sep 2001 Location: Franklin Park Posts: 10	With stock E7's don't count on much of an increase with any cam. If you only see the strip 6 times a year I would go with the 3.55's. With good traction you will still accelerate quicker than the 3.08's. You won't be disappointed. Bill Last edited by 8950LX; 01-12-2002 at 01:35 AM..

01-12-2002, 02:23 AM	#18
89FHPLX Registered Member Join Date: Aug 2000 Location: Miami, Florida Posts: 116	yeah I know I need gears but right now I cant. I just had Install for free two solid motor mounts because the stock ones where really bad. The car now with the mods I have takes off strong. The E-cam and the porting we did help alot. the car runs great and idel's at 900RPM. Anyways, I think a E-cam does do a diffrence. the car was check by a Pro here in Miami that only works on mustang and he's Top dog here. he said's my car runs to strong with the mods I have, meaning that it's rare that he see's that. Still I guess trooper Mustangs have slighty modified heads and other things. Even without the mods I have, the car run strong and keep up with other mild mod mustangs. Anyways, keep showing those "Ricers" who is the Boss! __________________ 89 Mustang Police Interceptor Cobra Upper Intake GT-40 Lower Intake Ported TFS Track Heats Heads Crane Cams 2040 Reground By Crawford Performance 1.6 Scorpion Roller Rokers FMR 65mm TB BBk Equal Lenth Shorty Headers Billit Fuel Pressure Regulator (45Lbs) Under Drive Pullies Moroso Cold Air MSD Blaster TFI Coil X-Pipe with 2 chamber Flowmaster Cobra water pump pully 34 Degree Total Timing with spout out Short Belt No Air Silencer Hurst Short Throw Shifter Taylor 8.8 Blue Wires 3.8 Taurus Electric Fan 3.08 Gears (soon 3.55's) 19# Injectors (soon 24lb) Stock mass air

01-14-2002, 12:45 AM	#19
DZEE'S LX Registered Member Join Date: Jan 2001 Location: Salt Lake City Posts: 117	How does the E-cam sound? Just curious because I'm putting one in next week. BTW as stated before your heads and HO engine are the same (from the factory) as any stock stang. The heads must have been modified by someone after it left the fleet. They usually don't mess with police car engines, if there is a warantee it would become immediately void. Depending on the state who ordered it, Special Service cars mostly got functional options like oil coolers, 130 amp alternators, silicone hoses, and other things not necessarily related to speed. There is a Special Service site out there that will tell you the whole story - can't remember the link. Dan __________________ Spec Service (UHP), BFG G-Force KDW's, Turbo Coupe 3.55 rear w/disks, 73mm calipers, Stg 1 Twisted Wedges, TFS Street Intake, 70mm TB, E cam, Crane 1.7's, Aeromotive FPR, BBK 1 5/8 shorties, elec fan, FMS Al Radiator, Moroso Wires, Kenne Bell Ramair, March pulleys, Race Magnums, 190 lph Walbro, FMS Al Dshaft, D/S loop, MM 4point rollbar, FMS C spngs, strut tower brace, Tokico Illuminas, Prothane bushings, MM Lwr Conrol Arms, KB welded subs, Cervini Mach 1 hood/valence/side skirts/wing/airdam.

01-14-2002, 01:05 AM	#20
Jeb_Bush_2000 Registered Member Join Date: Jul 2001 Location: Taxachusetts Posts: 374	SSP Mustang engines were identical to the civilian cars, performance-wise. __________________ Stripped-down '93 LX Coupe -- "Danielle" R.I.P. 05/30/02 "I've seen some crazy stuff in my life, but that...was...AWESOME!!! Oh, sorry about your car, man."

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