another cam question?

Coupe50h · 03-10-2003, 10:49 PM

Guys what do you think would work well with my combo? i'll have fully ported gt-40's, i was thinking e-cam, but the tfs 1 seems like a powerful one, id be using 1.7 rockers, and also i have 3.27 grs in the rear for now, would it affect low end? thanx.
p.s, im just making it sort of streetable, i dont want to put heads on without a cam, all that work.... something else is going in.
opinions welcome.

84LX89GT · 03-10-2003, 11:20 PM

I'm pretty much putting together the exact same combo you're doing, this is what i'm putting on:
have 1.7 roller rockers, 70mm Ford MAF, 70MM TB, TF street int. man., 1 5/8" uneq. headers, 2 1/2" exhaust, CAI, and installing GT40 heads, porting and gasket matching to intake and headers

What was recommended to me was a B-303 cam from a custom cam grinder after i gave him all the specs for my engine (he told me to use this rather than get a custom cam...he must know it works, since he willfully lost a sale recommending this cam). and it works awesome with 1.7 roller rockers. The specs are with 1.7 RR's:
.510 lift (max lift with pedestal rocker arms is ".512) with 284* total duration and 224* duration at .050" lift.
The power band with this cam is crazy from 4,000 to 6,000 with a NASTY sounding idle

If you go with something else, you may have to check valve to piston clearance. I'm going to check anyway, but this cam is about the largest you can put in without notching the pistons or converting to stud mount heads and rocker arms.

Coupe50h · 03-11-2003, 09:25 PM

Thanx, thats probaly what im going with, i know it sounds and performs good, my friend has one in a stroker.

It is not the biggest you can go with stock pistons, you can get away with an f-cam 226 duration .50 512/512, i know of several people that have used stock pistons with it.
Thanx alot for the help, i think im decided on the b-cam.

btw, i dont see how converting to stud mount heads can allow you to use more cam?
have a nice day.

84LX89GT · 03-13-2003, 02:33 AM

Yeah, i didn't mean it WAS the largest you could put in

, it's pretty very close to being too big of a cam with those rockers and not modifying is what i meant.
The stud mount rockers are required (from what i've read/heard) beyond .512" of lift because the geometry of the valvetrain becomes too great with the rocker arm bolted down in place without adjustability. I'm not sure if it becomes unstable, or too much pressure is put on the bolt and I really haven't looked that much into it, i've just gone with what i've heard from alot of people.

88workcar · 03-13-2003, 06:35 AM

Now hold on just a minute, We have a car with a stock bottom, AFR165s, 1.6s, and a FAT and NASTY HR266XE.

Myself, I'll say a WR1087. It is badass. I have had a B, right now the E. Yes the B has a tough idle, I loved it. But there are better cams out there. Also look at the HR258XE.

Mach 1 · 03-14-2003, 06:29 AM

Quote:

Originally posted by 84LX89GT
Yeah, i didn't mean it WAS the largest you could put in , it's pretty very close to being too big of a cam with those rockers and not modifying is what i meant.
The stud mount rockers are required (from what i've read/heard) beyond .512" of lift because the geometry of the valvetrain becomes too great with the rocker arm bolted down in place without adjustability. I'm not sure if it becomes unstable, or too much pressure is put on the bolt and I really haven't looked that much into it, i've just gone with what i've heard from alot of people.

Thats not true. what your hearing is bullshit. I was running a cam with .544 lift with pedestal mount rockers. What your saying doesnt even really make sense if you think about it. and you can adjust pedetal mounts with shims if you have too.

Coupe50h · 03-14-2003, 07:13 PM

Quote:

Originally posted by Mach 1
Thats not true. what your hearing is bullshit. I was running a cam with .544 lift with pedestal mount rockers. What your saying doesnt even really make sense if you think about it. and you can adjust pedetal mounts with shims if you have too.

Hey mach1, was that .544 lift on stock 87-92 pistons? please help me here, i need to know if it has been done running that much lift, if so, did any contact with piston occur?

Mach 1 · 03-14-2003, 07:51 PM

Yes, they were stock pistons, but not 87-92, they were 93, not that that makes any difference anyway.

It was with 1.6 rocker ratio. no problems, room to spare.

Coupe50h · 03-14-2003, 10:58 PM

Thanx mach, but im talking about using 1.7's with tfs 1 cam, that should put me at .542 lift on the exhaust, you think that is too much? thanx.

Mach 1 · 03-14-2003, 11:02 PM

no, thats not too much.

what are the specs. on the x-cam? Many run it with stock pistons. I think it is close to the limits though, so that might be a good guideline.

03-10-2003, 10:49 PM	#1
Coupe50h Registered Member Join Date: Aug 2002 Location: SanAntonio, Tx Posts: 957	another cam question? Guys what do you think would work well with my combo? i'll have fully ported gt-40's, i was thinking e-cam, but the tfs 1 seems like a powerful one, id be using 1.7 rockers, and also i have 3.27 grs in the rear for now, would it affect low end? thanx. p.s, im just making it sort of streetable, i dont want to put heads on without a cam, all that work.... something else is going in. opinions welcome. __________________ X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's. race weight 3,160 12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear 13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear

03-10-2003, 11:20 PM	#2
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	I'm pretty much putting together the exact same combo you're doing, this is what i'm putting on: have 1.7 roller rockers, 70mm Ford MAF, 70MM TB, TF street int. man., 1 5/8" uneq. headers, 2 1/2" exhaust, CAI, and installing GT40 heads, porting and gasket matching to intake and headers What was recommended to me was a B-303 cam from a custom cam grinder after i gave him all the specs for my engine (he told me to use this rather than get a custom cam...he must know it works, since he willfully lost a sale recommending this cam). and it works awesome with 1.7 roller rockers. The specs are with 1.7 RR's: .510 lift (max lift with pedestal rocker arms is ".512) with 284* total duration and 224* duration at .050" lift. The power band with this cam is crazy from 4,000 to 6,000 with a NASTY sounding idle If you go with something else, you may have to check valve to piston clearance. I'm going to check anyway, but this cam is about the largest you can put in without notching the pistons or converting to stud mount heads and rocker arms. __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock)

03-11-2003, 09:25 PM	#3
Coupe50h Registered Member Join Date: Aug 2002 Location: SanAntonio, Tx Posts: 957	Thanx, thats probaly what im going with, i know it sounds and performs good, my friend has one in a stroker. It is not the biggest you can go with stock pistons, you can get away with an f-cam 226 duration .50 512/512, i know of several people that have used stock pistons with it. Thanx alot for the help, i think im decided on the b-cam. btw, i dont see how converting to stud mount heads can allow you to use more cam? have a nice day. __________________ X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's. race weight 3,160 12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear 13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear

03-13-2003, 02:33 AM	#4
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	Yeah, i didn't mean it WAS the largest you could put in , it's pretty very close to being too big of a cam with those rockers and not modifying is what i meant. The stud mount rockers are required (from what i've read/heard) beyond .512" of lift because the geometry of the valvetrain becomes too great with the rocker arm bolted down in place without adjustability. I'm not sure if it becomes unstable, or too much pressure is put on the bolt and I really haven't looked that much into it, i've just gone with what i've heard from alot of people. __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock)

03-13-2003, 06:35 AM	#5
88workcar Registered Member Join Date: Oct 1999 Location: Pierre Part, La. U.S.A. Posts: 1,850	Now hold on just a minute, We have a car with a stock bottom, AFR165s, 1.6s, and a FAT and NASTY HR266XE. Myself, I'll say a WR1087. It is badass. I have had a B, right now the E. Yes the B has a tough idle, I loved it. But there are better cams out there. Also look at the HR258XE. __________________ 88workcar 1988 Mustang LX 342. 417rwhp @ 6800. 28 X 10 ET Drag, 4.30s, 10.69 @ 126.43 1.42 60ft. 11.13 @ 127.7 on BFGs 1.72 60ft Rice Hater # 42 To be old and wise, You must first be young and stupid I'm somewhere in tthe middle.

03-14-2003, 07:51 PM	#8
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	Yes, they were stock pistons, but not 87-92, they were 93, not that that makes any difference anyway. It was with 1.6 rocker ratio. no problems, room to spare. __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142

03-14-2003, 10:58 PM	#9
Coupe50h Registered Member Join Date: Aug 2002 Location: SanAntonio, Tx Posts: 957	Thanx mach, but im talking about using 1.7's with tfs 1 cam, that should put me at .542 lift on the exhaust, you think that is too much? thanx. __________________ X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's. race weight 3,160 12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear 13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear

03-14-2003, 11:02 PM	#10
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	no, thats not too much. what are the specs. on the x-cam? Many run it with stock pistons. I think it is close to the limits though, so that might be a good guideline. __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142

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