Jacyp7719

Thank u all for your time.
​​​​​​​I guess my goal is to pair up components, (turbo, exhaust manifold, Fmic) with the setup I have, to run the highest torque/HP combo low 4k rpm to 8k rpm with the least amount of exhaust pressure at valves in the overlap process.

Jacyp7719

Thank you for your time👍

Yes

Autoworks

500hp? 600hp?...800hp? A real # will really narrow it down to what a "better" option would be. You want power at 4k, that's doable...but you'll more than likely want to shift turbo sizing down to make real usable power there...which is going to then depend on what your peak hp goal is. That # can't just be open ended; if it is you'll end up with a top end happy turbo chasing that big # and lacking in the mid range where a "Street car" really thrives.

Balor_Gr

4k to 8k is D16 stuff. 84mm 77mm stroke B16 will rev to at least 9300 SAFELY. And make power up there with the correct cam.
If you still want power on 4k rpm 500whp is still a high target especially on a 77mm stroke.
If the target is some boost at 4k - power at 5k, and strong till 9500 you can do 500 to the crank and still be super responsive with a:
t3 .63 GTX3071 gen 2 on a mini ram manifold.
If you want Borg warner EFR 7163 is a crazy turbo also Banshee from shodan here
On the journal bearing and cheaper STC makes the Hunter, S252 sxe with a t3 .55 a/r turbine housing from bullseye or .63 from AGP or TNX 30/56 T3 .65 A/R.
All these on a mini ram manifold non divided. If you want twin scroll well i told you, get the SHORTEST you can find or fabricate with either 7163 T4 internal wastegate or 7670 if you want to go bigger.

Ill tell you this MANY regreted going for too big turbo killing responce.
Not many regreted going too small turbo.
Also make sure what cams you have cause the one you mention probably never existed.Too big NA cams will kill a turbo engine power easy..

Jacyp7719

Some great information to research here, thank you guys.

I was running a
garrett ta3405r
With a cast iron short manifold (jdm sport)
Fmic core 22x10x3 (unknown)
And was making
407whp
315lbs wheel torque

I'm just wanting to see what the motor can handle safely as I am a huge fan of Hondas and have the opportunity to upgrade my car after running this setup for a long time.

If you guys think that if im cruzing around from time to time I should stay at a goal of 600hp, then I'm on board, cause I would like to have response if possible.
I was hoping with the information on twin scroll technology, more response would be attained still as I try to climb the turbo size ladder.

Hoping to get more info from you guys, and thank you for helping me not make mistakes, I definitely don't want to have to kick myself.
​​

Jacyp7719

Super cool, thanks for the input.
I decided to start doing the math and was able to follow this page on compressor map calculations
Compressor Flow Maps and Calculations
http://www.lovehorsepower.com/joomla/index.php?option=com_content&view=article&id=4&Ite mid=88
And I was able to get it through my thick 💀 skull.

I was able to determine I'm just inside the surge line on the gt3582r gen 2 at 20psi, and 25psi.

I went and applied my findings to the gt3071r gen 2 turbo compressor maps and was far left of the surge line into the danger zone, I'm going to plot the gt40 and see what it looks like.

I also was surfing around and saw a seller on ebay with a b18b sleeved out and running 9's @160mph on the 1/4 mile. I thought I would ask him what turbo he was running. as I looked closer at his picture, he was running a twin scroll top mount exhaust manifold. He told me that twin scroll is great.
Unfortunately it does not look like he has a divide in his turbo exhaust housing😣.


Photo of engine seller I talked to on ebay

​​​

20psi

25psi

Jacyp7719

Off to the left of the surge line. No bueno

Balor_Gr

Surge line has to do with the ability of the engine to produce the power first. Long stroke engines with low CFM heads will need a lot of boost on low cfm and low turbo shaft speed. this is not a honda problem. By the time you hit that 20 psi youll allready be inside the turbo map.Its the right of the map yoi should allways check.For example some turbos NEED high boost to keep the cfm high. Some others dont need it.
Start trying to make the power target and budget a little more clear. If you pack the $$$ the G25-660 .92 is crazy too and a good match for the b16.
Also the silver surfer Shodan makes.
If you really want above 550 hp youll loose too much response on the B16.

Jacyp7719

I'm glad u posted the g25-660 here, I just watched a video with the gt25-550, I wish they would have shown pull with more boost. https://youtu.be/AYzi_5O_lCI
I'll check out that gt25-660 map, and I'm curious on the gtx3584rs gen 2 map as well.

Would like to check out the maps on the silver surfer line up, as well as the STC banshee super core & velociraptor model on goautoworks webpage. Think I'll email Greg to see if he has access to those maps.
​​

TheShodan

iTrader: (14)

not every turbo has composite and turbine exhaust flow maps. Those are $25K per map. You won't find those. Most who ask for a map don't know what they are trusting reading even if they had one.

As a matter of proof of concept. The Banshee is a better match for a B16 than the surfer.

Balor_Gr

You dont need much. All those people ripping the street with precisions...And they dont have compressur turbine maps.
Dont look TOO big turbos. But ill give you a little part number very few people know...Its the perfect since you want divided setup. I was trying a lot to find the OEM turbo that T4 .83 divided came from....
Search 179079 online.I remember the number by heart. There are not too many of them on the web...

Jacyp7719

Just wanted to thank you guys for all of your input, and being here. (information is king) I was unable to find anyone willing to make me a ram horn twin scroll. I've yet to here from fathouse fab & sheepey.
I went with
Goautoworks top mount twin scroll manifold v banded for the gtx3076r gen 2, v band twin 38mm tial, v band down tube, & dumps. (got tired of nuts) mx800fmic.
Was a plus that goautoworks had everything in house.

​​​​I will let you know how my tune goes once I plug it all up.
​​​​​​Again I appreciate the time you guys take in the platform.
Cheers

TheShodan

iTrader: (14)

Had to edit that correctly for you. Good luck to you.