mikmaze

I see countless threads here on twins, and not ever once did I see mentioned an intercooler setup between the turbo's. I see many of the setups with the sleek sweep right to the next turbo, but wonder if anyone gave thought to installing a small cooler, something off a lil force fed gasser say, to drop the charged air temp a few degrees, before compressing it again in the second turbo. An electric fan set on top would ensure some cooling. I may not have the money to do the bombs, but that doesn't stop the mind from thinking about them.

rustyshakelford

i think there wouldnt be enough room under the hood to fit something like that. when twins are jammed in there, there isnt alot of room for much of anything as those things just consume so much space between the piping and turbos themselves

brett

Ph4tty

Funny, I've seen several mention the idea in the 2nd gen room =P
Nobody liked my idea of thermoelectric cooling
http://www.tetech.com/modules/high-temperature.shtml

RowJ

You don't ever see it for two reasons, IMO.
1- Not really needed. Most well balanced twins handle EGT's very nicely.
2-It would be self defeating to a certain extent. Cool the charged air off the primary and you reduce the pressure going into the secondary... resulting in a trade off. Worth it...don't know?
If my BD Twins, with a smaller primary than many set ups, don't need cooler air to the secondary, where is the advantage??

If anything...to me it makes more sense to cool the inlet air going to the primary. JMO.

RJ

1320

I thought about it, and I have tried several intercooler configurrations on my truck. I run three intercoolers now. The stock one and two others. The prmary reason why I didnt try it was that the intercooler works better the hotter the air, or rather the bigger the differential in temps from outside to inside. So I think you want the hottest air posssible (pressurized twce) to go to the intercooler to see the biggest drop in air temp. I tried in series and parrallel, took my temp reading and decided. m just starting a ne intake design, that I think will ad torque/ hp and even out the egt at the exhuast side, which will probably lower the egt over all. It will look cool too.

Rampage1967

Cooling the air between the turbos will feed denser air into the second turbo & reduce the load on the main intercooler. The boost may drop, but the engine should make more power & lower egt readings.

csutton7

been done about 4 yrs ago by my6eatsv8's out here in CA---he had motor issues and then tore the truck down and sold the parts---truck made power(12V) no doubt about it--but I don't recall what his final thoughts about the setup were---the plumbing was incredible though---chris

gman07

http://www.cumminsforum.com/gallery/...00/ppuser/1190

He has HX35/HX55 twins, and from what he's said I think he likes the twin intercoolers, but he's having a few issues with the twins at the moment.

csutton7

so the HX 35 is on the bottom and he's built a hot pipe to flow from bottom to the top(against nature, but so is a stack) and he's running out of the HX55 into the innercooler on the driver's side and it exits on the passenger side into the HX35 and then goes to the innercooler on top (or is that a manifold to dump into the head) and then into the head---turbo sizes are wrong possibly and the hot pipe doesn't flow good is two things I see, but it depends what he's trying to accomplish power wise or cooling wise as to this choice of turbos---interesting though........chris

kantdrive55

In 02 on our Silver Bullet truck we ran a water to air intercooler between stages. It made about a 220deg drop in the charge air temps between turbos. That is a BIG drop. It picked up about 40hp off that. The only drawback was the size of the water tank you have to carry to make it work right. We had a small 5 gallon tank at first. At the end of the quarter it was hot enough to cook hotdogs. We had to go to quite a large tank to keep it cool enough. Once we had that all dialed in it worked great.

mikmaze

interesting replies guys, figured it would have at least two sides to it, but I like the power side best.