FC3S Murray's never ending build.

[TitaniumTT]

Originally Posted by classicauto

Yea I saw that one of the slots was quite a bit wider..don't recall if you said it was the front or rear though. IIRC the rear was fine, but front haad one out of spec?

I guess my pic viewing micrometer needs a recalibration haha.....but yeah as long as your measurements show they're in spec, you're rockin!

Well, assuming 2mm apex seals are 2mm's .15-.18 is too much slop IMHO

Originally Posted by FC3S Murray

Ha, I actually measured them bro. Front rotor slots all measured between 2.01-2.04mm. The bad rear rotor had one side with 2.03-2.05 BUT the other side of the rotor measured 2.15-2.18.

No good in my opinion. However, I can not find specs on the wear limits. ONly specs when Apex seal is installed via FSM.

I don't think you should use it. A rotor should be cheap and easy to come by, shit, I have 2 S4 n/a's and one S5/6......... although I'll know in about 12 hours if I'm going to be using them or not. Actually, I'd go for S5 n/a rotors if I need one or both. The suspense is killing me. Leaving for KDR in 7 hours.

BTW Sean, housing went out on Thursday Lemme know when you get them and what you think.

-B

[FC3S Murray]

Originally Posted by TitaniumTT

Well, assuming 2mm apex seals are 2mm's .15-.18 is too much slop IMHO



I don't think you should use it. A rotor should be cheap and easy to come by, shit, I have 2 S4 n/a's and one S5/6......... although I'll know in about 12 hours if I'm going to be using them or not. Actually, I'd go for S5 n/a rotors if I need one or both. The suspense is killing me. Leaving for KDR in 7 hours.

BTW Sean, housing went out on Thursday Lemme know when you get them and what you think.

-B

S5N/A rotors really?? Isn't the compression ratio too high? Shit I can't find any s4 or s5 TII rotors for less then 400.00 a pair. BUT there are a shit load of N/A's out there in great shape for cheap.

I would have to re-tune for sure since I am pushing 15psi. What are you running bro??

BTW thanks for getting the housings out.

[TitaniumTT]

Originally Posted by FC3S Murray

S5N/A rotors really?? Isn't the compression ratio too high? Shit I can't find any s4 or s5 TII rotors for less then 400.00 a pair. BUT there are a shit load of N/A's out there in great shape for cheap.

I would have to re-tune for sure since I am pushing 15psi. What are you running bro??

BTW thanks for getting the housings out.

Yeah, the comp is 9.7:1 in the S5 n/a's. Supposedly helps out with cruise and low end grunt. Need to accomadate in the tuning though. Doesn't really help or hurt in the top end with the boost that I plan to run. Not to mention Chadwick has been doing it for a while so I feel confident.

Re-tuning is going to be mandatory regardless of whether you change anything. You're going to have a much healthier engine at the end which will mean that things are tighter and she'll probably run leaner anyway.

The S4 n/a's are 9.4:1.
S4 TII - 8.5:1
S5 TII - 9.0:1

No worries on the housings. I feel bad that they were a day late. Please PM me when you get them though.

-B

[FC3S Murray]

Originally Posted by TitaniumTT

Yeah, the comp is 9.7:1 in the S5 n/a's. Supposedly helps out with cruise and low end grunt. Need to accomadate in the tuning though. Doesn't really help or hurt in the top end with the boost that I plan to run. Not to mention Chadwick has been doing it for a while so I feel confident..

-B

That is crazy. I mean it makes sense but is such a "no no". I would most likely go with S4 N/A since it is a lower comp ratio then the S5. Then I am in need of rear and front matching counter weights too if I go that route.

The last time I researched on using N/A rotors with 15psi, it was looked at like major SIN. I know Aaron cake is running 12 psi on his N/A turbo application with no problems yet..

Hmmm....interesting. If Lucky 7 can't find me a S4 TII rotor OR give me a good price on a pair he has I MIGHT just go this route.