333pg333

Yes, thanks very much for your posts. Really interesting and I'm still incredulous over the results compared to what we are used to in our world. Be interested to hear what you think about the differences the head plays between n/a and forced induction. Anyway, hope you recover asap and can get back into your projects.

333pg333

Wonder what the limits are on the 16v heads?

Thom

Would be interested to know how much more the 2.7 head flows than the std head. Intake ports are larger, so surely it should flow slighly better than a std head, assuming fitting the same 48mm intake valves in both?

DanaT

Honestly, it seems a cheaper overall way to go is a 944S2 engine with custom turbo pistons.

ilikemy944

Did you flow test this yet?
Were you planning on dynoing this head before you swapped bottom ends?

fifai

Hi i've tried to contact VTM but they email seems to be broken... is there another way to contact them ?

refresh951

Not yet. Been crazy busy with my build and work.

Call them -- 855-361-4000 Toll Free

jlturpin

Shawn. I know you have been very busy but did you ever flow this head before installing on your stroker?

Where did you get the new valve seats?

refresh951

Unfortunately no . I have a long sad story about this but oh well....

Valve seats were provided by the shop that did the work, Goza Auto Machine in Acworth GA.

fifai

What's up ?

refresh951

Update - looks like VTM no longer sells the valves but they are available from their supplier SI Valves:

http://sivalves.com/

Intake: stock, +2mm, +3mm, +4mm, and +5mm
Exhaust: stock, +1mm (non-sodium filled)

slate blue

I bought some SI valves, they were very heavy and they were not true. The could have been fixed but it just isn't worth it. I don't know where the machining is done but....... anyway in the bin now.

refresh951

Not good Slate. Called VTM and phone was redirected to SI. The above was story communicated to me. I bought valves from VTM a little over a year ago and was happy with them. How much heavier were they? Did you discuss the "not true" issue with them?

slate blue

What's the point with discussing it with them, how long is that going to take to resolve. I am not in the US and sending them back and forth with all the time delays and costs, not worth it. They weighed around 132 grams, I think they were 52 mm and I had the identical size custom made and they came in at 99 grams.

refresh951

Planning a High Flow Head 2.0, aka Ultra High Flow 8V Head Hoping to have a really great flowing 8V head (yet low cost) ready for the Spring. Who is using 50mm intake valves?