Any opinions/Pro's or Con's on Holley Systemax intakes???
- Thread starter Bill_s351
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They're really on beneficial if you're running higher horsepower levels or are running some type of forced induction. On a stock engine, or mildly modified, you will feel a loss in low end torque.
I have this intake on my 306 and I'm having some masive oil control problems! Starting from the PCV valve on into the EGR block and then the oil is running through the the T/B into my C&L elbow and then literally dripping out of the conical filter. I've tryed to track this problem down and no luck. I've replaced the PCV valve and tryed different vacum routings. This weekend I'm replacing the intake gaskets and adding a new 70mm EGR block. The EGR block that is on it is a used 65mm that has been milled to match my 70mm T/B and I'm thinking that it may be faulty or damaged. Also the intake gaskets may have moved during installation. I'm actually out of ideas that could cause this problem. Has anyone experienced this problem with these intakes before? Or do I have a different problem?
PLEASE HELP!
Thanks,
Greg
PLEASE HELP!
Thanks,
Greg
Rick....it was great talking to you. Thanks for the tip and I believe that it fixed the problem! 
I have some other issues to fix as well. Such as....header gaskets and just some small tuning issues.Then I'll be able to test drive it tomorrow, but I didn't see ANY sign of oil loss at idle.
Thanks once again,
Greg
P.S. PM me a price for the torque box re-enforcements. I didn't get a chance to ask you on the phone.
I have some other issues to fix as well. Such as....header gaskets and just some small tuning issues.Then I'll be able to test drive it tomorrow, but I didn't see ANY sign of oil loss at idle.Thanks once again,
Greg
P.S. PM me a price for the torque box re-enforcements. I didn't get a chance to ask you on the phone.
Intakes are like other things, what works great for one car might suck for another. The Holley Systemax II intake has some really big runners. You would always make more HP than a stock intake but you would sacrifice low end torque in the prossess, while there are other intakes that would give you as much HP but keeping the TQ such as the Edelbrock Performer, GT40/Cobra/Explorer or ported stock. The Systemmax I is just a aftermarket lower that fits the stock upper, also suposed to be a nice peice.
GREG91GT said:
Nahh man.....No secret. Rick just told me to simply re-route the PCV hose to a nipple installed in the nitrous boss that is located on the side of my C&L Tru-Flow elbow. That was it. That's all I did and there was NO oil loss whatsoever for at least 20 minutes of idling and before this little tip it would have lost at least shot a glass of oil for that length of time. I was adding two quarts per week. THAT REALLY SUCKED!!!
I'm very pleased so far to say the least!! AND....it was about an hour 1/2 of my time (most of which was cleaning up the oil mess) and about $6 bucks for the parts! It works and I can't wait to see how it runs on the street.Greg
To Rick!!! I can't believe I didn't try this before!!Rick,
Once again, thanks for the tip. I feel really stupid I didn't think of it myself!
LOL
However, my question is this. Did your problem completetly go away?
After I fixed some other issues today, I got to go for a 30 minute test drive. When I got back, I pulled the elbow that is connected to the T/B. I found about 2 tbs of oil just laying in the EGR block and T/B. Also dripping onto the valve cover from the throttle body linkage. It appeared to be coming from the throat of the upper intake. I'm thinking that I might still have an intake gasket issue. Does this problem sound normal to you? I'll know more on the commute to work tomorrow.
The car runs like a champ now to say the least though!
I have the speeding ticket to prove it! 
Thanks again,
Greg
Once again, thanks for the tip. I feel really stupid I didn't think of it myself!
However, my question is this. Did your problem completetly go away?
After I fixed some other issues today, I got to go for a 30 minute test drive. When I got back, I pulled the elbow that is connected to the T/B. I found about 2 tbs of oil just laying in the EGR block and T/B. Also dripping onto the valve cover from the throttle body linkage. It appeared to be coming from the throat of the upper intake. I'm thinking that I might still have an intake gasket issue. Does this problem sound normal to you? I'll know more on the commute to work tomorrow.
The car runs like a champ now to say the least though!
I have the speeding ticket to prove it! Thanks again,
Greg
nmcgrawj
Advanced Member
ah guys, i just want to make sure im not blind. Holley does not make a 351 lower for their fuel injected intake do they? I saw the carb'd one but no luck on the f/i.
nmcgrawj
Advanced Member
Rick 91GT said:
Rick could you point me in the direction of those spacers? Do you think it would be best to just sell my holley and get the TFS 351 intake? I have TFS twisted wedge heads if that affects the spacers. I have never heard of the spacers before. Thanks man.
www.pricemotorsports.com
They make all the spacers for Holley for use with there roots blowers.
Personally the Holley would be a little small for a healthly 351, I would go Spyder, TFS-R or Victor depending on the intended use of the combo.
They make all the spacers for Holley for use with there roots blowers.
Personally the Holley would be a little small for a healthly 351, I would go Spyder, TFS-R or Victor depending on the intended use of the combo.
nmcgrawj
Advanced Member
Rick 91GT said:
Yea i just found another place that has the spacers. They run a couple hundred bucks...which wouldnt be too cost effective for me at this point. I think i will just sell the holley and get something 351w specific.
Will the spyder kill the low end torque? Its not a full drag car...still a daily driver(well almost) that just needs to make good power.
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