opticool headgasket
- Thread starter bobsiding
- Start date
Devilin AblueDress!
New member
I don't think the Opticool effects the compression like other aftermarket gaskets. If you want to and have the $ getting the head mod would be even better. Keep in mind you then have to tune that carb for even compression across all 3. I have a 04 Viper S with needles raised to 3.25, opticool gasket. Will be adding rear cooler. If you are or are planning on running triple pipes I would look into SRX carbs (richer tubes, all 3 same as PTO on Viper) and I would say rear cooler mandatory.
Agpetro
Member
The Bender head mod is for triple pipes not a stock viper engine, I take it you are talking about a viper right?? The mod evens out the compression so the engine runs better with triple pipes. I believe the opticool head gasket is a bit thicker then the oem gasket which would lower the compression. Chris (super1c) would know, I believe before he said it lowers the compression. For some reason when I had my viper done the compression is at 125psi across the board. If I remember right I think the number members on here say is 115psi with the opticool gasket. When it comes to running premium gas you should always run it in you're sled. I have a neighbor that is"TOO CHEAP" to run premium gas in his sled. 87 was fine he said.... I don't remember how many pistons he took out, well over five. About every 20-100miles he would eat a piston. Got to love them polaris 600 triples!! LOl
super1c
Super Moderator
Yes the opticool does lower the comp. I cant remember exact numbers as my notes are north but it was a good 5+ psi per cylinder.
mile9c1
New member
I put an Opticool on my viper in December and it was the exact same thickness of the stock one. So, it can't possibly lower the compression. Super, maybe you had a thinner gasket to begin with? My sled was stock and I specifically measured because some people said they removed a layer from the Opticool (I did not).
Agpetro
Member
I never did look at the difference between my stock gasket and the opticool. I just remember there being a thread on here last season talking about how the opticool was thicker and lowered the compression.
super1c
Super Moderator
Maybe bender changed its thickness but the ones I put on a couple of seasons ago were obviously thicker. Just by sight removing one layer would have brought it pretty close to stock thickness. My comp dropped with the install. I had a stock unaltered head gasket on. I installed this on all three of my vipers and they all dropped exactly the same amount. So not sure why the difference.
mile9c1
New member
That's why I checked my Opticool with digital calipers. I was a bit relieved they were the same because I didn't want to separate the layers on a new gasket. I purchased mine last Fall.
Agpetro
Member
I have a feeling that I have the same thickness as the oem one. I never did have compression loss from it.
uberfraznb
New member
The Opticool head gasket has a larger bore diameter than the stock Viper head gasket (probably to accommodate big bores and overbores). The resulting increase in combustion chamber volume will lower the compression.