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#1 |
Registered Member
Join Date: Nov 2000
Location: Maple Ridge B.C. Canada, The Best Place In The World
Posts: 871
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![]() Will an e3o3 cam work on my stock 88gt (T-5) without using different rockers, pushrods, valve springs... & will i have to convert to masss air? will i have a piston to valve clearence problem?
Any info appreccieated. |
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#2 |
Registered Member
Join Date: Mar 1999
Location: Arcadia, CA, USA
Posts: 731
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![]() I installed an E cam on my 91 with stock E7 heads and didn't use the special springs, rockers, etc. It worked fine. For your car, it should "fit" okay but I don't know if the speed density will work with it.
------------------ '91 LX Procharger, 3 row intercooler, extrude honed Cobra intake, Mac full Length Headers, 30# inj., 73mm C&L, 75mm tb, E303 cam, 289 rods, ported E7 heads, MSD, T-Rex w/255 lph Walbro, 5 lug conversion, Cobra R wheels, 3.27 gears and Moser Axles. |
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#3 |
Registered Member
Join Date: Apr 2000
Location: middleburg, fl, usa
Posts: 1,134
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![]() Will an e3o3 cam work on my stock 88gt (T-5) without using different rockers, pushrods, valve springs? Yes, but I would not recommend it without the springs because the valves will probably float at higher rpm's. It will hurt your low end torque a little and you will pick it back up high in the rmp's but not with out the springs.
Will I have to convert to mass air? No, but you might have a problem with the idle and drivability problems. Will I have a piston to valve clearance problem? No ------------------ James Cox nochevy@hotmail.com 1991 Mustang LX Best 1/8 time on motor 7.686 @90.20mph |
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#4 |
Registered Member
Join Date: Nov 2000
Location: Maple Ridge B.C. Canada, The Best Place In The World
Posts: 871
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![]() What type of valve springs should i use?
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#5 |
Registered Member
Join Date: Apr 2000
Location: middleburg, fl, usa
Posts: 1,134
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![]() When you buy your cam ask for some springs to match your cam. I am not sure what springs they are but I do know they should be around $120.00 and they should have them where you get your cam.
------------------ James Cox nochevy@hotmail.com 1991 Mustang LX Best 1/8 time on motor 7.686 @90.20mph |
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#6 |
Registered Member
Join Date: May 1999
Posts: 5,246
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![]() Replacing the cam on a stock motor will not net the performance gains you are looking for.
The cam is not the biggest problem. The cam should only be changed if you have a different intake, and head modifications, or different heads all together. If you do the swap, you should get an adjustable fuel pressure regulator to fine tune you motor so the computer will have less problems adapting to the cam change. |
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#7 |
Registered Member
Join Date: Apr 2000
Location: middleburg, fl, usa
Posts: 1,134
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![]() There are a lot of better mod’s to do before a cam. I waited until I got my heads to get a cam but if you are after the sound then go for it, if you are just after more power then post the mod’s you have right now and we can recommend the best mod’s for your car.
------------------ James Cox nochevy@hotmail.com 1991 Mustang LX Best 1/8 time on motor 7.686 @90.20mph |
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#8 |
Registered Member
Join Date: Mar 1999
Location: Arcadia, CA, USA
Posts: 731
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![]() I'm tellin ya, you don't need to replace the springs if your stock ones are holding up. I was running 12.70s at 111mph a few years ago with with the stock heads and E-cam. If you want to be safe, then buy the springs but it'll be a waste of money if you swap heads later on.
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#9 |
Registered Member
Join Date: May 1999
Location: Georgia
Posts: 3,866
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![]() I agree, dont know what all the fuss about the valve springs is for. If your motor has reasonable mileage, your stock springs will work just fine with the e cam.
------------------ 1993 GT/AOD '93 Mustang GT |
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#10 |
Registered Member
Join Date: Oct 1999
Location: Pierre Part, La. U.S.A.
Posts: 1,850
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![]() Yes, yes, yes, No, no, no, I agree with every one. It will work, It should not be done now. The stock cam is good for 12.50s. Why not go with roller rockers for now?
------------------ Jason B Johnson 88LX,speed density,edel heads,4.30s,B-303,cobra,tremac, 12.38 @ 111.28 1.80 60ft 28X10 street tires 12.17 @ 112 26 X 10 slicks http://www.mustangworks.com/mustangs/pictures/Listing347-slot3.jpg |
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#11 |
Registered Member
Join Date: Apr 2000
Location: middleburg, fl, usa
Posts: 1,134
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![]() I did not say it would not work for sure, I said it might(probably) float the valves.
I am going on the fact that he has an 88 and it probably has a lot of miles on it and I have seen it happen. Sorry if there was any confusion, but I still would not recommend it; but then I would not recommend the cam right now either. ------------------ James Cox nochevy@hotmail.com 1991 Mustang LX Best 1/8 time on motor 7.686 @90.20mph |
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#12 |
Registered Member
Join Date: Dec 1998
Location: London, Ontario, Canada
Posts: 1,349
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![]() A cam will give you a little more power by moving the power band upwards... the stock heads & intake will certainly limit you.
The cam should really be the last thing you do... to make all your components work together. I agree that some 1.7 roller rockers would probably yield the best street improvement. A little more lift, but retaining the cylinder pressure. That said, with flow restricted heads etc... you can actually go with a bigger cam than most people think. Your smaller ports and runners mean you get GREAT flow velocity, so it'll keep filling with longer durations. You'll certainly loose low end though, and would want some gears. I'd prefer a broader streetable torque band though. Stock cam is something like: 211,115lsa,.444" The E cam is the same as the crane 2040: 220/220,110lsa,.498/.498 The crane 2030 would be more suitable (if you REALLY want a cam): 214/220,112lsa,.533/.544 The broader lobe separation gives you a broader torque band, better idle, and it'll be more SD friendly. It's got a lot more lift than the alphabet cams. The split duration favours the weak exhaust, and keeps the cylinder pressure up. You can get the cam kit with springs for $210... I'd get the springs. |
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#13 |
Dirk Diggler
Join Date: Feb 1999
Location: SLOATSBURG, NY
Posts: 1,931
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![]() if you want more top end power then just retard your stock cam a few degrees..no point on retarding your cam or buying a bigger one cuz the cam is not the bottleneck in your motor right now..
------------------ 1987 black notch(ex 4 banger) DSS 306 w/ main support...Elderbrock 6028 heads..gt-40 intake..24# injectors...70 mm tb..77 pro-m...accel 300+..mac full legnth..tremec w/ pro5oh...full MAC exhaust,off road h-pipe,long tubes, catback...ron davis radiator..subframes, control arms...CFDF II..o yea holley FPR sucks..dont buy one.. |
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