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    Stock cam question

    Sorry, I've taken a couple apart but I can't recall. What you are experiancing, if it is too long a push rod, is surprising. The lift difference between an 86 and 87 cam is pretty small so I'd be surprised if the PR's would change much since you are using the original 86 heads.
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    Stock cam question

    Well you may need to start over in setting the rockers. Put the lifter on the base circle and then hand tighten the rocker until you get to zero lash (where the PR will not easily spin with your fingers). Then torque them down but you must get to full torque in 1/2 to 3/4 of a turn. If you...
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    understeer after coilover install?

    That I'm not sure of. I know there are differences in the K members and the front control arms. I have the 87-93 arms on the stock 83 K. The sway bars I bought are Eibach, were listed for a 79-93 and bolted right into the front. The rear was a different story but that was due to the...
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    Where do I buy Pro3i control arms??

    Just a FYI I run these arms 1979-1998 Mustang Rear Street/Race Lower Control Arms They work really well but did increase noise significantly. A better choice if this is a concern may be the arms with the three piece poly mount at both ends. 1979-2004 Mustang Rear Lower Control Arms...
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    understeer after coilover install?

    Ok this is for a 79-2004 Mustang. Front: Stock spring: spring rate X.25= Wheel Rate CO: Spring rate X.90= Wheel Rate Rear: Stock: Spring rate X.49=Wheel Rate CO: Spring rateX1.10=Wheel Rate (this is because the spring is behind the axle) I also found the sway bar charts. Mustang...
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    understeer after coilover install?

    Well it depends. I assume that the CO's increased your front wheel rate. If that is the case your swaybar may be too much. Wheel rate is a function of spring rate and location. A 1000 pound spring (really stiff) in the stock location is equal to about a 250 lb spring on the CO (what I'm...
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    Compression question

    Let me just clarify something. When I'm talking cranking comression and dynamic CR it's at the .050 spec. Seat timing is hard to determine and I've found .050 spec more closely relates to real world.
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    11.5 Compression Ratio on 92 Pump Gas Possible?

    Michael, Very good points. I particularly like the direct injection technology although it's not germane to the OP question but it's really cool stuff. Ford's new EcoBoost V6 uses this. They inject the fuel at something like 3000 PSI and even have designed the piston to help shape the...
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    Compression question

    As NickowaC says yes this does apply. Cranking compression should be looked at but sadly without software it is difficult to calulate. I use EA for this and I've never seen an online calculator. 185 is a good target cranking pressure for a pump gas motor. The thing is that you can't just...
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    Piston Valve Reliefs

    They do but are out of stock on the tool for a 2.02 valve. They say it is 30 to 60 days until they restock. This place Lindy Tools has a tool that they sell. It's instock and ships the next day after ordering.
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    cranks neutral balance, internal/external

    Very good post :nice: One other thing to consider when having a balance done. Some shops will work your flywheel and/or balancer. If this is done then you can't just swap them out. You can however have the new part matched to the old part and not have to have the whole balance redone...
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    11.5 Compression Ratio on 92 Pump Gas Possible?

    This depends greatly on the cam. Specifically the intake closing event, overlap has nothing to do with it. I've got a cam for a 10:1 306 (my personal toy) that runs just fine on pump gas but would require race gas in a 347. If you go custom you can do it no problem. Keeping the cranking...
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    Piston Valve Reliefs

    There is a bit of missleading information going on in this thread. Lift and duration are part of the equation but only to the extent that in a OTS cam they can typically be related to ramp rates. The important part is the valve events as the cam is installed in YOUR engine (intake open...
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    understeer after coilover install?

    There could be a million reasons for this. The alignment could be off If the ride height changed this affects instant center and tire loading. If you stiffened the rear more than the front this can cause this issue. Typically if you stiffen one end the other end gets more loose. Or you...
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    e7te heads going to the machine shop

    As stang &2birds has said you will most likely end up with PTV issues just by changing to E7's let alone taking .030 off. Just because someone has done it does not mean it will work for you. How thick of a head gasket was used, the RPM the motor saw, the deck height of the block all play a...
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    Valvetrain adjustment ?????'s

    That is the way things were done back in the day. I suppose it works but I've never done it on anything other than a flat tappet cam. The procedure the Modular2V is correct. The two keys are 0 lash and lifter on the basecircle. You determine 0 lash by spinning the PR as you are turning...
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    Nasty Whistling sound

    If it is a vacuum leak at the engine it will stop as soon as the motor stops since there is no more vacuum. There are some devices that will hold vacuum but the motor will not. I would take a close look at the PCV. It can be a source of a pretty big leak and it's pretty well hidden on an FI car.
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    Positive and Negative battery cable questions.

    Some applications have a small (12ga) wire from the negative terminal. This can be used for the body ground. Other applications use a strap from the cylinder head to the body. Still others use both as Ford determined there was a need to have an isolated ground to some electronics. It's...
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    New Mustang Engine. which 1??

    A lot of this depends on if you are able/willing to build it yourself. I'm assuming there is not much of a budget limit as you were talking about a mod motor in a FOX. If you want a crate motor I'd look at the roush stuff. Yeah it pricey but it's rock solid. If you were to build it...
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    Aluminum SVO X heads

    I would suggest getting your current heads measured and flowed. If you then think you need to go bigger, this is where I'm going to deviate from the pack a bit. A 205 head is not too big for a 306 let alone a 347 especially with a blower. Now the cam is important but I've run a Canfield...
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