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Engine Mechanical TopicsDiscussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.
No its not a fancy $10,000 turn key system, but it will work for small stuff which is all Ill ever need it for. Under the guidance of a very skilled and knowledgeable friend of mine we have tested a few sets of stock heads and also heads that hes worked on. He said he thinks its pretty damn accurate and FP claims accuracy to within .4 cfm @28 but were still waiting for access to a real bench so we can compare data. Its all very interesting.
Cool, What does it use to drive the air and what pressures can it go to?
Right now i'm using a 6hp shop vac. Per the instructions "test pressure" is set at 28". I do not know what it can go to. I hope that answers your question. If it sounds like I don't know what I'm doing it's because I really don't lol
Right now i'm using a 6hp shop vac. Per the instructions "test pressure" is set at 28". I do not know what it can go to. I hope that answers your question. If it sounds like I don't know what I'm doing it's because I really don't lol
So does the vacuum plug into a 120 or 240 volt outlet? 6 hp would technically require at least 37 amps at 120 volts so you kind of know that it's an exaggeration.
Assuming that this uses the shop vac, does it control flow in any way? Speed control on the Vac or a valve?
I suspect that it's more of a "calculate flow at pressure" based on the sampled pressure and flow..
Not trying to be critical in any way.. Any flow bench is way better than none.. I've spent a lot of time playing with mine.
BTW I have some 06 and 07 TC head flow data taken on a Superflow SF110. . I'm not an expert but it does seem to match what others were getting.
Here's where you'll find answers to your questions.
You can buy calibration plates from them to check the accuracy of your bench.
They sell nice pitot tubes as well.
There's more to flowbench testing than just airflow #'s. If you really want to learn join the group & start reading.
That will keep you busy for a while.
So does the vacuum plug into a 120 or 240 volt outlet? 6 hp would technically require at least 37 amps at 120 volts so you kind of know that it's an exaggeration.
Assuming that this uses the shop vac, does it control flow in any way? Speed control on the Vac or a valve?
I suspect that it's more of a "calculate flow at pressure" based on the sampled pressure and flow..
Not trying to be critical in any way.. Any flow bench is way better than none.. I've spent a lot of time playing with mine.
BTW I have some 06 and 07 TC head flow data taken on a Superflow SF110. . I'm not an expert but it does seem to match what others were getting.
Yeah I'm not an electrician in any sense of the word so I'm just going to take your word on that lol.
The vac itself doesnt have anykind of speed control but there is an in-line pwm valve between the vac and the flow element that is connected to the controller. Yes you are correct, it does calculate based on sampled pressure and flow.
Also, if you'd like to share your head flow data with me I'd love to compare it.
Last edited by brownie4412; Apr 28, 2022 at 08:08 AM.
Here are a couple stock heads.. They should flow the same but as you can see the 07 had issues. Look at the corrected flow for 28.. Testing was done at 10 inches..
Here are a couple stock heads.. They should flow the same but as you can see the 07 had issues. Look at the corrected flow for 28.. Testing was done at 10 inches..
Thanks Max! I will have some data to share sometime this week. I made some bore adapters this last weekend, and my friend has 2 sets of his customers heads we are going to do a before and after on, also comparing it to what you gave me.
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I built a flow bench
