well I guess I'll jump on the band wagon of 2.5 16v's.

[GLHNSLHT2]

I'll have to start up a photobucket account at some point since the administrator of the PNW-sdac decided to make it so we can't post pics here.

Specs:
2.5 using Masi CB
Custom JE's
Oliver 6.160" 570g billet steel rods 1.506vs. 1.453 rod ratio. Not much but anything helps.

NOS Masi 16v head, upgraded springs and valves (cause the stock ones suck)
GT30R turbo
Treadstone TVR25 O intercooler.

That's about it, I'll post pics and weights as things come in.

[Directconnection]

Jay, you can get longer with the rods if you want the better ratio. No... I'm not going to talk you out of the 2.5 (but you know that's my opinion) Not sure how the deck height combined with rod length and stroke calculate out, but a huge majority of performance engines we build use "rails" on the pistons. If you're not familiar with it, when you relocate the compression heights (pin location) up really high for a short piston, the pin bore goes right through the oil control rings and there's no support from the piston groove as it's now gone. The rail support is a thicker ring that locate in there after the piston/rod assembly is together, then you put on your rings and expander.

Oliver rods are very kick-azz and so are JEs. I wanted JEs for my build, but at $550 for justthe pistons +$80 for rings, vs. $450 for Wiseco pistons/rings my choice was obvious. Next build I'll probably go JEs.

[GLHNSLHT2]

Well if I have the same rev range as my 8v with stock rods I'll be happy. In the pig heavy Tona the 2.5 really is a much nicer motor to drive. The 2.2 is just too soft off idle for my liking in that car So a bit longer ratio and dropping over a lb off the rotating mass should be just fine. Yea the JE's aren't cheap, but seeing what they looked like after the abuse they've taken over the 10 years I've been learning how to tune the ECU's or had other people try and tune it I'll stick with them. Any forged pistons are nice and are much better than the stockers.

[Keito]

Jay, you can get longer with the rods if you want the better ratio. No... I'm not going to talk you out of the 2.5 (but you know that's my opinion) Not sure how the deck height combined with rod length and stroke calculate out, but a huge majority of performance engines we build use "rails" on the pistons. If you're not familiar with it, when you relocate the compression heights (pin location) up really high for a short piston, the pin bore goes right through the oil control rings and there's no support from the piston groove as it's now gone. The rail support is a thicker ring that locate in there after the piston/rod assembly is together, then you put on your rings and expander.

Oliver rods are very kick-azz and so are JEs. I wanted JEs for my build, but at $550 for justthe pistons +$80 for rings, vs. $450 for Wiseco pistons/rings my choice was obvious. Next build I'll probably go JEs.

i was told by a friend of mine that works at Wiseco that they make pistons for JE

[BadAssPerformance]

I'll have to start up a photobucket account at some point since the administrator of the PNW-sdac decided to make it so we can't post pics here.

Specs:
2.5 using Masi CB
Custom JE's
Oliver 6.160" 570g billet steel rods 1.506vs. 1.453 rod ratio. Not much but anything helps.

NOS Masi 16v head, upgraded springs and valves (cause the stock ones suck)
GT30R turbo
Treadstone TVR25 O intercooler.

That's about it, I'll post pics and weights as things come in.

Wierd how you cannot link them here, usually no problems linking pics here from anywhere. Feel free to post them here by attaching them to your post or putting them in our gallery.

Interesting.... Masi 2.5L is this a first? I think the other 2.5L 16V's are either hybrid or Lotus head?

[2.216VTurbo]

Hmmm, same head *similar* turbo GT3576, fully built shortblock (Diamond's and Pauter's, and ProGram caps) yet I am de-stroking to 2l with a heavily reworked NOS IMSA crank(that took almost a year at the shop that everyone reccomended) If we both reach our goals it will be awesome, comparing Dyno sheets would be an interesting read

What springs did you use, same as I did with the RDI set? Did you use the duals(this motor I did another motor I used the cups and singles) Do you have light at the end of the tunnel or no real completion date yet?

[Directconnection]

i was told by a friend of mine that works at Wiseco that they make pistons for JE

No, JE and Wiseco are totally seperate companies. Even the pins they use are totally different.

JE and SRP are the same company.

[GLHNSLHT2]

Wierd how you cannot link them here, usually no problems linking pics here from anywhere. Feel free to post them here by attaching them to your post or putting them in our gallery.

Interesting.... Masi 2.5L is this a first? I think the other 2.5L 16V's are either hybrid or Lotus head?

It's not a TM thing, the administrator of the PNWSDAC site shut that option down somehow. Here's the Email we got "I did a tuneup on the gallery installation and changed a few settings with the way files are served and hotlinking are handled. We were getting about 7,500 hits a week from about 50 countries just for ---- speedtest image.
You can still post to forums but you have to use a link instead of inserting the image or photo. This helps when someone responds to your post and then all the pictures reload over and over. " names are edited out.

It might be the 1st 2.5 Masi. AFAIK it is, but then there are a lot of Masi people that hide out in the shadows it seems like.

Hmmm, same head *similar* turbo GT3576, fully built shortblock (Diamond's and Pauter's, and ProGram caps) yet I am de-stroking to 2l with a heavily reworked NOS IMSA crank(that took almost a year at the shop that everyone reccomended) If we both reach our goals it will be awesome, comparing Dyno sheets would be an interesting read

What springs did you use, same as I did with the RDI set? Did you use the duals(this motor I did another motor I used the cups and singles) Do you have light at the end of the tunnel or no real completion date yet?

Did you do any porting Alan? This head will be stock in that regards. I don't know if I'll mod the intake at all. I might just port the stocker for a 58mm TB and call it good.

I'm actually very interested in Juggy's T3 2.5 thread as it'll be a pretty close back to back comparison of the T3 and Masi in 2.5 configuration.

Head needs to go to Rick. I don't know what spring options I have other than that I've been told the stock springs should be replaced for any type of rpm increase. I need to get in touch with Rick and discuss it with him.

Light at the end of the tunnel? Yes. I want the car up and running by Memorial day. I'm tired of driving this Gas Guzzler of an Auto 2.2 New Yorker around. I want my 32+ city MPG Tona back on the road.

[GLHNSLHT2]

I'm in the market for either a 89 Masi 16v crank gear or an 88 square tooth 5 bolt gear.

[2.216VTurbo]

I'm in the market for either a 89 Masi 16v crank gear or an 88 square tooth 5 bolt gear.

Uh, what happened to yours? Is it cracked 1/2 way thru? I have one that broke that way, I just tapped the threads deeper and ran longer bolts. Still holding years later

[GLHNSLHT2]

I have one for my Ti rodded motor, need one for the 2.5

[vipernbox]

I am really interested in in the progress on this one.. As the bottom end that gets built for the spare head I have laying around is getting a 2.5 crank for sure... After October the Charger is getting a big block for sure...


Pictures and specs of what you came up with for pistons would be awesome!!!


(I will check the stash though and see if i don't have an 88 crank gear around.. I know I have one on the GLHS I could swap if it really came down to that "88 T2 engine in there now' )

[GLHNSLHT2]

Picture's I'll get when they come in. As for specs that was easy. I picked up the phone one saturday (I'm not on the east coast) called Mike at FM and told him what I wanted for a compression ratio and what size bore. He did the rest.


There ya go Todd

[vipernbox]

Cheater...

[GLHNSLHT2]

Cheater/Laziness/stress free/smart take your pick

[GLHNSLHT2]

Rods and pistons shipped today! Should have them next week.

---------- Post added at 05:16 PM ---------- Previous post was at 05:15 PM ----------

Uh, what happened to yours? Is it cracked 1/2 way thru? I have one that broke that way, I just tapped the threads deeper and ran longer bolts. Still holding years later

hehe Alan, wait till you see what I've come up with. Let's just say I'll have the lightest CB masi crank gear around

[2.216VTurbo]

Rods and pistons shipped today! Should have them next week.

---------- Post added at 05:16 PM ---------- Previous post was at 05:15 PM ----------



hehe Alan, wait till you see what I've come up with. Let's just say I'll have the lightest CB masi crank gear around

You know I too thought about carving one out of Balsa wood but decided against it

[GLHNSLHT2]

nahh, no wood. It'll weigh less than a CB gear, less than an 88 5 bolt gear, but probably a bit more than an 87 and earlier gear.

[Ondonti]

Here to give you a hell yeah.

[GLHNSLHT2]

Thanks Ondonti.