Ring gap question
Thread Starter
Melting Slicks
Joined: Nov 2003
Posts: 3,011
Likes: 9
From: Dublin GA
[QUOTE=stevieturbo;1585888127
As for "need" to run a vacuum pump....what sort of power are you expecting ?
When you get to the stage of needing a vacuum pump....I'd say you'd need to be pushing pretty damn hard, ie well into 4 figures.[/QUOTE]
I'm only looking for 770-800rwhp. The builder stated a .031 ring gap, and said "there's going to be blowby, you just need to run a vacuum pump.
Dont's want to do that
I guess I just find it odd that I am running 10.5lbs and 700+ on stock rings and stock GAP, and have for 3 yrs
As for "need" to run a vacuum pump....what sort of power are you expecting ?
When you get to the stage of needing a vacuum pump....I'd say you'd need to be pushing pretty damn hard, ie well into 4 figures.[/QUOTE]
I'm only looking for 770-800rwhp. The builder stated a .031 ring gap, and said "there's going to be blowby, you just need to run a vacuum pump.
Dont's want to do that
I guess I just find it odd that I am running 10.5lbs and 700+ on stock rings and stock GAP, and have for 3 yrs
Team Owner
Joined: May 2006
Posts: 21,473
Likes: 356
From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
Dude should at least stand by his work no matter what - even if ring gap is tighter than he "THINKS" it should be!
To say that he will not stand by his BUILD/WORK because you have certain specs and it/they are backed up by other builds and builders is stupid -
To me, IMHO, it sounds as if he is not confident in his own work!
Does he generally build Boosted motors or more N/A motors?
Thanks,Matt
Thread Starter
Melting Slicks
Joined: Nov 2003
Posts: 3,011
Likes: 9
From: Dublin GA
He says he will stand behind everything else except any damage caused by the rings butting if I give a recommendation other than the .031 his builder recommends. (If I go with him it will not be .031)
It's Thompson Motorsports, and they seem to have a good reputation on the forums for what I can find, but then I haven't been able to get a whole lot of feedback. In cases where there has been a problem, he seems to try and resolve it, but I cant afford to have an issue on a reg. street engine
Kyle has been VERY patient with my unending questions, but as I told him, I can't find ANYONE that is running that much gap, but I can't afford to give him a recommendation and lose a motor.......
I wonder if I should just buy a set of rings from Diamond (pistons being used) get their recommendations and ask him to use them
It's Thompson Motorsports, and they seem to have a good reputation on the forums for what I can find, but then I haven't been able to get a whole lot of feedback. In cases where there has been a problem, he seems to try and resolve it, but I cant afford to have an issue on a reg. street engine
Kyle has been VERY patient with my unending questions, but as I told him, I can't find ANYONE that is running that much gap, but I can't afford to give him a recommendation and lose a motor.......
I wonder if I should just buy a set of rings from Diamond (pistons being used) get their recommendations and ask him to use them
Melting Slicks
Joined: Aug 2004
Posts: 2,237
Likes: 9
From: Springhill FL
FWIW I had my Thompson built Iron block on the dyno yesterday. Worked like a champ. My crankcase is just breathered atm. You get the slightest wiff of oil after a dyno pull, but its not blowing oil. I dont feel any significant pressure or pulses from the breather or oil cap opening. I put 14PSI through it. 
Just the same, I'll be converting my air pump into a vacuum pump on a hobbs switch in the near future. I did all the wiring for a meth setup then decided not to run it. So I'll use it for the air motor :P
Just the same, I'll be converting my air pump into a vacuum pump on a hobbs switch in the near future. I did all the wiring for a meth setup then decided not to run it. So I'll use it for the air motor :P
Melting Slicks
Joined: Jul 2004
Posts: 2,844
Likes: 144
From: Northern Ireland
He says he will stand behind everything else except any damage caused by the rings butting if I give a recommendation other than the .031 his builder recommends. (If I go with him it will not be .031)
It's Thompson Motorsports, and they seem to have a good reputation on the forums for what I can find, but then I haven't been able to get a whole lot of feedback. In cases where there has been a problem, he seems to try and resolve it, but I cant afford to have an issue on a reg. street engine
Kyle has been VERY patient with my unending questions, but as I told him, I can't find ANYONE that is running that much gap, but I can't afford to give him a recommendation and lose a motor.......
I wonder if I should just buy a set of rings from Diamond (pistons being used) get their recommendations and ask him to use them
It's Thompson Motorsports, and they seem to have a good reputation on the forums for what I can find, but then I haven't been able to get a whole lot of feedback. In cases where there has been a problem, he seems to try and resolve it, but I cant afford to have an issue on a reg. street engine
Kyle has been VERY patient with my unending questions, but as I told him, I can't find ANYONE that is running that much gap, but I can't afford to give him a recommendation and lose a motor.......
I wonder if I should just buy a set of rings from Diamond (pistons being used) get their recommendations and ask him to use them
I'm sure some of mine are that loose....but purely because I got carried away with the file lol
I have concern by the fact he is telling you that you "need" to run a vacuum pump. That's just complete BS. You do not need to.
It may be beneficial, but certainly not needed.
Last edited by stevieturbo; Jan 12, 2014 at 05:52 AM.
Thread Starter
Melting Slicks
Joined: Nov 2003
Posts: 3,011
Likes: 9
From: Dublin GA
The reason I am having trouble getting information from seal power on the rings, is that they are rings he uses are made for TM.
QUESTION; I can get the gapless in the build for $100 extra. Do you think I should just go with that and have a great ring AND get the correct gap straight from TS and be comfortable.
QUESTION; I can get the gapless in the build for $100 extra. Do you think I should just go with that and have a great ring AND get the correct gap straight from TS and be comfortable.
Melting Slicks
Joined: Jul 2004
Posts: 2,844
Likes: 144
From: Northern Ireland
I'd be very surprised if the rings are made specifically for one engine builder, and unique only to him...if so, they'd be pretty damn expensive.
Because they'd be unique for every single application/engine.
So if TS off the shelf rings are more expensive...I think someone might be telling fibs.
Because they'd be unique for every single application/engine.
So if TS off the shelf rings are more expensive...I think someone might be telling fibs.
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Thread Starter
Melting Slicks
Joined: Nov 2003
Posts: 3,011
Likes: 9
From: Dublin GA
"The diamond piston part # is an 809tho. The rings are made for us exclusively, this means we are the only source of information on the rings. We are able to run the total seal as we discussed earlier at an additional cost."
