The Rods are 157.5mm long, The block is a 4G64 with steel liners coated bringing the bore size down 85.5mm and it runs a 97mm stroke crank.

Mark

 

It doesnt seem to have restricted this build.

Mark

 

Makes sense since you eliminated much of the lag in the air travel from the conventional placement of the TB.
How do you control the air bypass with these multiple bodies? do you leave them slightly open? what's your idle speed?

excuse all the questions, I am in the process of refining my idle speed to as low as possible on a large set up (AMS F1/70mm tb/2150's) and the air flow variation at low speed can def throw things off (IAC + BISS asdjustments...etc). Curious how you're doing it.

very unique and interesting setup!

 

Yea not sure why I didn't realize you had almost an identical setup. Im going with a 2.3 aluminum rod stroker engine. Manley Knife edge 100mm Crank. Im also going with the AMS F1 manifold

 

I dont have a idle control valve on the engine, Base idle hot is 1100rpm where I like it and cold its about 700rpm,
The inlet has a exentric cam adjustment on the end to adjust the throttle opening.

Mark

 

I wonder if anyone in the usa has a jenvey manifold? I doubt it. it would cost 3000 to get one here. the only car I know that uses one is this efr 9180 effort. without any back to back test against a known inlet manifold, I doubt anyone would ever buy one to try. just same basic common sense though, this manifold would likely be a nitemare on a smaller turbo car. four 48mm throttle bodies would flow more than one 90mm body. so it would be like going full throttle on a 60mm body at just a 20% throttle opening. welcomed on a big laggy turbo. makes a big turbo "feel" more responsive due to the extra response you get from small throttle inputs. but you dont want that extra response on a small turbo. I hate 65mm body on a 2.3 red setup. its too responsive sometimes on 60mm body.

 

I take it you have not driven a correctly set up and mapped multiple throttle body set up then,
I would fit them to everything if people could afford them they are worth every $,
They also sell a DBW version so you can get creative on your throttle mapping it you wanted.

Mark

 

Here is the block where you can see the liners.


Mark

 

my text is pretty clear. I have only seen this one car you have tuned it on. so no I havent driven one. dont think antone in the usa has. so what the smallest turbo setup you have used one on?

 

Now I want Individual throttle bodies... The wife is not going to be happy.

 

The smallest turbo has been 300hp, The control the car has on this style set up so so much nicer than a big single, You really need to try a good car with it.

Mark

 

If you go that route you need to make sure the Ecu can do throttle pressure mapping as a normal type pressure map doesnt work well.

Mark

 

AEM Infinity -8?

 

I dont map them so its best to ask your tuner if it does throttle pressure mapping also call multi maps but I would expect it to do it.

Mark

 

Zircoat is some very impressive stuff. First time seen it was on an ITuned na high comp car when when i was in england. With car was running for almost a minute and I could still touch the manifold.