Why You Should use a Torque Plate when Boring and Honing

In this episode of Platinum Tech we talk to Herman from PRP about Torque Plates and why they are needed when honing your block.

[@toughvz]

Man you guys are killing the content. Absolutely love the collab with Herman lately, especially all the RB stuff

[@MotiveVideo]

thanks mate

[@clist9406]

20 + years in building cars , I have never heard about torque plates or thought of the concept. But I am not an engine builder , just install them . Great video . Just shows no matter how long you have been doing things , there is much to learn .

[@TriniRogue]

I freaking trust this guy with my life let alone an engine, such an upfront and honest vibe i get from him, solid videos as of late man very interesting content!.

[@vevohoeyo]

Just keep these videos going guys. The quality of this content is stunning. Talk about interesting!!

[@boostedbuiltgarage]

These are good Andy! Keep em coming. Lot of people don't know about all these engine building strategies and the meaning of things like torque plates etc👌

[@chrisg4rr377]

Loving these videos. KZbin doesn't normally do videos like this. Cheers Motive

[@LT589]

what about when I'm boning and horing?

[@mareksumguy1887]

😂

[@ElMaximoBango]

Contrary to popular belief, you don't actually want a plate in there. You want maximum flexibility and distortion as things are a little tight from factory and need a bit of working to adjust properly.

[@mareksumguy1887]

@@ElMaximoBango Are you also trying to be a funny guy?

[@Oblithian]

Scope it out before putting in your tooling?

[@vitamulten1395]

You too want your hardware covered with something or bad things will happen.

[@conradsealy9603]

I think its a good idea on any engine that is being modded. I had a torque plate done for the SR. The machine shop liked it so much they call me to rent it anytime they do a SR block now.

[@conradsealy9603]

@@Nascup they didnt seem to want to make the investment I gress.

[@Jolinator]

Great camera work. Next video which is stronger Hermans arms or Supra block.

[@Joetechlincolns]

Good video. Straight to the point. 👍👍

[@Marko-JZX100]

Was kinda waiting for measurement differences with and without torque plate. Last 1JZ I did was bored with torque plate, and yes it runs perfectly with zero blow by. Unfortunately did not have proper tools in the home garage at that time to measure the block bores before machining and after. Just gave the block and torque plate to the machine shop, and they did all the work. They even said the plate was useless, as they have tested them before on many inline4 and 6 engine blocks, and could not justify the ever slight difference it made. Don't know how true that is....today everything sells in the motorsport and performance industry if the marketing of the products is *right*.

[@shameelali2549]

Been doing this for many yrs now,I also bolt on the mounts,ac bracket etc etc as well.

[@incognito8219]

Thanks PRP

[@blackthunder7342]

Awsome videos man. More ....make more

[@jamespauling7165]

Please do the same analysis for the Barra and other popular engines. Great content very interesting

[@MotiveVideo]

We're getting there. We did the blokc comparisons out of our own time and money. Currently have a Barra block being stripped and acid dipped ot be cleaned ready for test

[@TheCuttz1984]

Please some 1uz love also

[@turbotrana]

I am pharkin fussy when it comes to my machinist. I would use this guy anytime. Southside engine centre and Galloway for engine work in Perth

[@tthams73]

You’re missing one major factor! HEAT!! Which throws out all the other factors!

[@Monstero5o]

Wish i had the money to give this man my 1JZ

[@GORZ_YOUTUBE]

My question is if I want to use block brace should I have that installed while honing?

[@Piotr94L]

@Motive Video Can you make Barra, tb48, 1FZ, M103/m104, M30b35, Hemi 6 - big 6 comparison, like you've made all RBs vs 2JZ

[@MrBlackbutang]

Absolutely.

[@karroome]

Can you tighten the piston/cylinder clearances tighter than factoy as an added benefit

[@dalew6226]

We need a youtube show with Herman, Jim, Andre from HPA, and shane T, hosted by Andy Hawkins.

[@AutoBodyEverything]

So we will also be disposing of the studs once they are torqued with new ones when we install the heads?

[@AutoBodyEverything]

Can I mention piston sleeves and what what notes can be taken on this subject..

[@DZoneMotorsportTV]

After watching this video twice, reading the majority of comments under this video, and then going to other sites talking on the topic of torque plates, it's basically meant to simulate natural distortion with the head on and no pistons in the block so that the bore / hone is done to more real world accuracy. Is that it or am I wrong?

[@vitamulten1395]

I feel dumb i have never heard of torque plates before as it makes perfect sense. Just curious why they dont do this at the factory at least for high performance engines.

[@driftmouse_official]

Also you can use a killed block as a torque plate if you cut it and get the thread for the head bolts away. Don't forget to turn it upside down. This is a pretty silly way but still works.

[@Dollsofgod]

Or convert a spare head to a torque plate if you have one laying around and don't mind sacrificing it.

[@driftmouse_official]

@@Dollsofgod but it's shit, cause you'll loose it's stiffness by making big holes in the head, cylinder-close size, no?

[@Dollsofgod]

I'm no structural engineer but I don't think it would give you a worse result. Would the head be weaker as a singular piece? Sure, but would that translate to a less accurate distortion it would put on the block if you bolted it to it? I don't think it would in any meaningful way. If anything you could argue that the billet head simulators they use or your idea are too stiff and that the over stiffness gives you an equally bad result when trying to simulate an assembled block. We're talking maybe a few thousands of an inch here either way, I think it's just as valid an option as any other for the desired effect.

[@driftmouse_official]

@@Dollsofgod Yeah, I agree. Just shitposting on da internet) I suppose noone will try to do a research on that)

[@mr34]

If you are trying to simulate the engine with the head bolted on etc, then you should really heat the block to operating temps.

[@MotiveVideo]

Chris Curtis wth iron you don’t need to but with billet Block you do

[@bigblock1968impala]

what changes at running temps

[@ClutchKickJunkies]

Will sticky tape work? Guido hatzis told me there is nothing that sticky tape cannot fix

[@dantomarchio9710]

If tape doesn't work your not using enough.

[@PSNxFTWxRAGOI]

What about a broken conrod?

[@derickstiffs9051]

Yes!! Guido knows his stuff ive heard his phone calls he's a well spoken man.

[@magnetic0314]

*schticky tape

[@TheCuttz1984]

Mate mate look my grandfather told me that.......he was the best mate. Haha I remember Guido's skits

[@jasaircraft]

Quick question, do you think that hg can be reused after doing the honing with the torqueplate on?

[@Blackenese2plz]

I wouldn't if you don't plan on having it apart again soon. If you regularly take it apart you probably could and would.

[@e36blur]

So wouldnt it help if the block was at operating temperature when honing?

[@blackthunder7342]

Thats an awsome question I didn't even know torque plates were thing until this video and I've been a mechanic for 17 years

[@altondickens4277]

@@blackthunder7342 really for racing

[@YouCantSawSawdust]

No. There is no benefit because the block is heated in a totally different manner from combustion temperatures as compared to coolant temperature. It's all been verified many,many years ago. Ring Dart(USA) and ask them. They will confirm this. They have done the analysis.

[@YouCantSawSawdust]

Also,torque plate boring and honing is not new technology. This was all done by performance engine builders decades ago.

[@blackthunder7342]

Can u sonic test honda blocks

[@stevewalker412]

So use it on a magnum 5.9 gas???

[@ldnwholesale8552]

Some engines are terrible for going square. 136000 mile 400 Ford and you could still see hone marks at the top of the bore. In 4 spots along side the head bolts. Surprisingly it had very little lip. and was vaguely fumy but ran ok. Never thought about iron v alloy heads and different torque plates. my feeling is very little difference though. Having the hole for the machines ofcourse loses some simulation, but as overhauling engines torque plated you do not see odd patterns like I described above. A cheap way to make power and even better durability.

[@michaelmills4348]

what about engine heat, would that not distort the block slightly too?

[@alexisthemexican]

Everything else tweaks with it. Maybe not in the same way, but that's why having the Torque plate will help minimize those differences at running temps.

[@rolandos64]

use the same gasket/bolts? The used ones or new ones? Many are only usable once

[@zikovsnorton]

New🤦😆

[@luispadilla1675]

does having the block on a stand affects bore as well ?

[@MotiveVideo]

nah, its own weight isnt enough to distort anything

[@semenovr]

Would the OEMs use torque plates in production?

[@dan8t669]

no

[@tompickrell9125]

would have been nice to see measurements

[@nidalshehahadeh7485]

Why not Bolt the cylinder head on and measure the cylinder bore from the crankshaft side? doesn't that save you the hassle of making a torque plate?

[@allrise3938]

Would it make a difference doing it while the block it is optimal heat or stone cold? Hmmmmm

[@laurieagnew6706]

Ive heard top end race teams will have their blocks at or around operating temp during machining, would lile to see a video on the subject

[@tysonrojas5477]

Link ?

[@iampuga1530]

Take a shot every time he says simulate😂

[@jackass123455]

how is a piece of billet aluminum anymore representative of a CAST aluminum head than a steel plate they are still completely different materials

[@ryanfoss6243]

The way the grains of the material line up when the piece is built will effect how much it deflects.

[@zyoungson215]

How are you going to hone the bore with a head bolted on there?

[@grecoconduris6716]

Why do I think Herman could do a good Chopper impression?

[@grecoconduris6716]

Fuck, I don’t even remember writing this. But someone liked it.

[@ikaharding09]

First comment woo!

[@driftmouse_official]

I hate you!

[@youtubesbichasspolicys5888]

But why does a block of aluminium with 6 big holes and 14 bolt holes cost so much. Billet should technically be cheaper than casting and forging for this type of stuff 🤦🏻‍♂️

[@_i-kr6eg]

If your so called engine cant perform this . Then time too find another engine builder or someone with the right tools

[@doogeerugged89]

well that did not answer my question .. that is what does this thing really doo........i think i'm missing some info here? ....... Update:kzbin.info/www/bejne/omjZY6lsn51po5I this guy does a better way of answering