64mm ihi limit

[NRA223]

I'm wondering what the most power anybody has made on a 64mm ihi is fuel only. The most I've seen is 644 on a dts 64.

 

[Chevy1925]

you might to specify what turbine wheel as well.

 

[NRA223]

Not sure on what mine has. Basically I'm trying to decide on what the next step for my truck is between manifolds and up pipes or cp3 upgrade. I'm not sure if my stealth 64 would benefit from more fuel or not.

 

[yellowchevy]

you might to specify what turbine wheel as well.

Its the stock turbine wheel.

I would put on dual fuelers or a stroker pump then 2" up pipes with stock passenger & LML driver side manifold if it were me and going in an order. You're turbine wheel limited being its stock.

Yellowchevy

 

[NRA223]

I already have the lml manifold so thats a plus. Do you think with the stock turbine wheel i will need that much fuel or would a sportsman pump do?

 

[yellowchevy]

I already have the lml manifold so thats a plus. Do you think with the stock turbine wheel i will need that much fuel or would a sportsman pump do?

A sportsman pump will give you more fuel on the top end but duel fuelers will make it more responsive and power down low. This is just my findings from talking with others that experience with both.

I'm assuming now your stock LB7 CP3 is running out of fuel up top and your exhaust is clear?

Yellowchevy

 

[NRA223]

No pressure codes or anything like that but the exhaust does clear up. My truck only has 60000 miles on it and fpr was replaced last fall.

 

[yellowchevy]

No pressure codes or anything like that but the exhaust does clear up. My truck only has 60000 miles on it and fpr was replaced last fall.

Whats your rail pressure holding at on your biggest tune? Is actual vs. desired close?

Yellowchevy

 

[NRA223]

I haven't logged it but under wot the edge shows a 23.2k desired and 22.8k actual.

 

[Yngdmax92]

from what i have read, 600 hp is pretty much the limit for the 64mm

 

[diesel53]

Nevermind I see what injectors you have. What does the 64mm inducer and stock turbine make with stock injectors and cp3?

 

[yellowchevy]

Nevermind I see what injectors you have. What does the 64mm inducer and stock turbine make with stock injectors and cp3?

If you look at my sheet you'll see what I made with stock injectors & cp3. Most I made was just under 480hp.
IHI Wheel Results

Yellowchevy

 

[NRA223]

Most trucks with this turbo dyno around 610 it looks like

 

[diesel53]

If you look at my sheet you'll see what I made with stock injectors & cp3. Most I made was just under 480hp.
IHI Wheel Results

Yellowchevy

I really though stock injectors could support more power than that. Maybe not?

 

[JDub]

Really going to depend on the tuning and how much pulsewidth you dare run, but I think I've heard 560-570 range.

 

[TheBac]

Really going to depend on the tuning and how much pulsewidth you dare run, but I think I've heard 560-570 range.

x2 That seems about right.

 

[yellowchevy]

I really though stock injectors could support more power than that. Maybe not?

As others have said, depends on tuning/setup. Which dyno you're on, operator, and sampling/setup range also plays a big parts as well.

I've seen some dyno numbers change 50-100hp from dyno to dyno when nothing was changed on the pickup.

Yellowchevy

 

[JDub]

We've built well over 100 64mm IHI turbos in the last 3 years and have yet to have one come back with a broken shaft. Have had some returned to be repaired for other issues, but never a broken shaft.


Sent from my iPhone using Tapatalk