Theres another guy who made a post with the same problem.
heres a link, check it out

https://www.rx7club.com/forum/showthread.php?t=811650

wait a minute, thats u

 

Yes It was me but didnt get much out of that post. Also on this one I originally focused on the exhaust size issue that I didnt ask before.

 

I was following your first post wondering how that was gonna turn out, Any progress being made on your situation? What are u trying next?

 

Well I just wrote a very long explanation only to press the wrong button and loose everything
Anyway, to resume what I wrote, they were supposed to do a very large streetport to simulate the behavior and idle qualities ( or lack of quality ) of the half-bridge since they told me they could do and they didnt.
So they agreed to take the engine out and do a half-bridge and put it back for free. (I hope they do not come back with some new charges for something else )
So it will be nice after this to compare the power and torque curves between the streetport and the half-bridge with all else equal.
As for the lack of power, it seems the main piece at fault is the intercooler that for some reason is not doing its job. If I am not mistaken the latest they told me was that it was lowering the IAT by about 20 degrees so if it did like the bigger intercoolers and cooled the charge by almost 200 degrees, then the difference in power would be major.
Will have to wait for now while I keep researching about exhaust, intercoolers, and the tuning with AI.
Leo

 

Talking about that, if they open the engine that has barely been broken in with all new internals after the rebuild to do the half-bridge porting, do they have to replace some of the seals again? Or they can re-use everything safely?
I think I may post this question as a separate thread later because I have to make sure they dont put back something they should replace.
Leo

 

can u really obtain the idle of a bridge port with a streetport? i have a very large streetport, but mine doesnt idle like a bridge (unless i take the map sensor hose off) maybe its just an idle speed issue, mine idles at 1100rpm.

as far as the seals go, most of it can definetly be reused as far as i know. apex seals, side seals, corners, and all the springs should be good to go, the water o-ring seals i am thinking should be replaced, need some engine builders to chime in to be sure though.

 

Only thing they'd need replace are the soft seals, and add solid corner seals to meet the BP'd irons.......unless they're running solid ones now. Pics of that IC in a bit

 

Cool! thank you for the answers guys.
Leo

 

i am guess the answer is no?
seeing the shop is redoing your port for free

 

Oh I am sorry, I forgot to answer
They say you can do it, and I have seen some people achieve it but its not easy I guess.
I think its not only a matter of the size of the porting but the shape (for the timing of the overlap) and also a combination of all the rest of the stuff too like the exhaust, intercooler, size of turbo (the smaller the turbo, the easier it moves at idle and the more it restricts the flow )
So it seems to be possible but not easy to achieve.
Leo

 

This IC is a bit larger (wider) then mine, as you can see he's relocated the battery, although you may have fit a small Odessey battery in there....

Pay no mind to the dust

 

hey Classic, is that Scrappys car? u giver her some fresh paint?
my IC is similiar, pettit coolcharge 3

 

Does he want to sell that intercooler?

 

Actually that intercooler looks very much like the Large M2 one? Are you sure it is Godspeed?

 

thats not the godspeed, its from a different car as classic stated in his post.
its either the pettit 3 or m2 they are the same design. they go on the forum for around 1000$ i think

heres mine, its a pettit

 

the one in the pic belongs to rotary dynamics, its darryls car.

They did the whole setup, and a number of guys run their intercooler...7 rocket has one. They do a couple different core sizes, and I'm sure darrıl's is the larger one.

 

With your FMIC tilted like that, a vented hood may do some good by letting all the hot air the travels through the IC escape from under the hood, rather than enter the intake

Just a thought