965 IC vs B&B IC

[sundevil64]

On the fence of putting a 965 IC on my 78. Currently there is a B&B IC on there.
The surface area is the same between the two. The B&B is much thicker, but is not a full bay. The 965 IC is approx 3/4 of a full bay.

While I don't have any numbers, it would seem the 965 may be slightly more efficient than the B&B due to the overall coverage vs thickness.

Does anyone have any stats on the two?

The plus side of the B&B is accessibility to other parts of the motor. I have removed the A/C btw as I do not drive this during the summer months and I can drop some weight off the back.

Thank you in advance for your input. Chris (Turbokraft) very interested in your feedback.

John

[dos531]

965 intercooler is probably more of a sidegrade than an upgrade. Not worth the trouble IMO. If you're looking to improve charge temps, go with the turbokraft full bay.

[crb07]

There was a comparison of all half bays including Ruf and TurboKraft half bay has more cooling area.

[sundevil64]

That is where I am at, whether it is worth the trouble. May just sell it an put the cash towards my 71 project.

i will look for that comparison. I saw it years ago but it has been a minute.

[slow&rusty]

I haven't had the opportunity to lab test the 965 IC against the B&B say at 18psi and air heated to 150F, I wish I could get my hands on one.

But in terms of a B&B vs the OEM 930 IC, the B&B is far superior. I did a bunch of these tests back in 2005 and the B&B faired extremely well.

In general terms, surface area is very important and directing moving air to this surface. But you also want a certain depth in the core without adding too much pressure drop, this is where the fine balance in thermodynamic / thermal efficiency design comes in.

[cody818]

Is B&B IC similar design to BS IC? I remember reading about this build.

930 rebuild -- the process in pictures.

[slow&rusty]

Originally Posted by cody818

Is B&B IC similar design to BS IC? I remember reading about this build.

930 rebuild -- the process in pictures.

Completely different designs. The Blown 6 IC is similar in design to the 965.

[TurboKraft]

Originally Posted by sundevil64

On the fence of putting a 965 IC on my 78. Currently there is a B&B IC on there.
The surface area is the same between the two. The B&B is much thicker, but is not a full bay. The 965 IC is approx 3/4 of a full bay.

While I don't have any numbers, it would seem the 965 may be slightly more efficient than the B&B due to the overall coverage vs thickness.

Does anyone have any stats on the two?

The plus side of the B&B is accessibility to other parts of the motor. I have removed the A/C btw as I do not drive this during the summer months and I can drop some weight off the back.

Thank you in advance for your input. Chris (Turbokraft) very interested in your feedback.

John

Both are pretty similar with regards to cooling efficacy under normal driving conditions. With the increased surface area, the 964T has a small advantage in situations where you are under sustained boost.
Both are more than adequate cooling capacity for a CIS-injected engine.
The 964T intercooler is a "longneck" IC fitting directly onto the throttle body and has the updated diverter valve setup which improves driveability. It's noticeable as soon as you accelerate from a stop. This valve doesn't leak boost like the stock (tired) diverter valve housings, so boost response is slightly improved.
A downside of the 964T IC, besides the aesthetics of it sitting at that wonky angle, is that there is interference with the rear AC condenser in the wing.

B&B bolt-on Standard Fit IC #FPOR-0300 core: 11x11x4.5in = 545in^3 volume, 121in^2 surface area
964T IC core: 22.75x8x2.625in = 478cid, 182in^2 surface area
TurboKraft LNIC: 17x8x4.5 = 612in^3 volume, 136^2 surface area
Kokeln: 16.25x8.5x4.5 = 622in^3 volume, 138^2 surface area

[sundevil64]

Thanks Chris.

I have rebuilt the diverter valve once and seems to carry boost fine for the moment.

Still left on the fence which I guess mean’s leave it as is because I don’t see a compelling enough reason.

[gassian]

I went for TK Long Neck and cannot be any happier with the quality and the help that Chris gave during my install.

[Axel84]

Both are good, splitting hairs really.
More than enough for your 500 bhp build unless you live in the desert.