Compound Intercooler System?

[91Panda]

Is there such thing as a compound intercooler system?
Like having both FMIC and SMIC's?
If so is it very reasonable?

 

[VETTE_50_TH]

Yes. But it hurts, not helps. Run 1 very efficient intercooler and thats all you need. Or a small with meth. OR a large one with meth.

 

[tenn-gsx]

If you need that much inter cooler the SMIC will just end up being a restriction to the whole system. Like said above. Just get one larger FMIC that is efficient enough for your goals. This is also likely to be cheaper and less complicated.

 

[Blackrose]

Im pretty sure a compound intercooler system is for engines with compound turbos. One smaller intercooler cools the charge of the smaller turbo before it gets compressed again by the larger turbo and then from the larger turbo into a large intercooler. But most compound turbo systems even still use only one IC.

 

[GRAVEDIGGER]

Im pretty sure a compound intercooler system is for engines with compound turbos. One smaller intercooler cools the charge of the smaller turbo before it gets compressed again by the larger turbo and then from the larger turbo into a large intercooler. But most compound turbo systems even still use only one IC.

Say what? Say who? Compound turbocharging doesn't require two seperate intercoolers. The air gets fed from one turbo right into the next with no intercooling in between on every compound system I have seen.

 

[blackGSX2g]

Twin intercoolers can be found on twin turbo set-ups. Not compound set-ups.

To the OP, are you really heatsoaking your FMIC that badly that you want two? As posted above, there are far more efficient ways of solving that problem if you are.

 

[Blackrose]

I never said it was required. I said it is sometimes done. The last thing I said was most compound systems only use ONE IC anyway. If you want to get real technical you dont need an IC at all with any turbo. But thats very not recomended.

 

[LiquidX]

Pressure drop would increase as well and a bit of lag due to more space to fill. Although it would t be much it would still happen.

There is no need to run multiple intercoolers unless you run twin turbo and each turbo is fed to a separate manifold thus needing a separate intercooler.

 

[Blackrose]

JCB DIESELMAX Has compound IC's
Thats just one example.

Paul V considered doing it in his compoud setup but just didnt have the room for it...

 

[GRAVEDIGGER]

I never said it was required. I said it is sometimes done.

I have yet to see where it is sometimes done. Doesn't make much sense to me. Not trying to pick on you or stir anything up here Blackrose. Just trying to get our facts straight and I have NEVER seen that done on a compound setup.

 

[LiquidX]

The link posted has the prototype looking vehicle running 4 un speced turbos and 2 un speced intercooler sizes. He would be needing more than one as you can only go so big with a core in both length and width. It's most likely heat soaking a large single IC and having 4x if not more flow than our cars the pressure drop and associated lag is basically non existant.

 

[Blackrose]

I just posted and example of when its been done and when it was considered on a 4G63 even...

And I dont mind I like a good debate as long as its in good taste, its the best way to learn as far as im concerned.

 

[brian9397gsx]

no not worth it if your actually heat soaking consider some sort of chemical intercooling like meth or just jump to a water to air set up. theres more problems with what your suggesting then benefits

 

[tenn-gsx]

I gets done sometimes. Usually on a racing application and usually a water to air intercooler inbetween the 2 turbos and a fmic for the main intercooler. Reason being is it keeps the temps down on the air charge going into the smaller turbo allowing it to do less work for the same results.

 

[GRAVEDIGGER]

JCB DIESELMAX Has compound IC's
Thats just one example.

Paul V considered doing it in his compoud setup but just didnt have the room for it...

I would like to see what their setup looks like. I would bet they are just sending the air from one intercooler directly into the next intercooler instead of using one intercooler to cool the charge from the first turbo and then going to the next turbo and then to an intercooler again, but of course I could be wrong.

 

[99gst_racer]

Air-air intercoolers work by using ambient air to remove heat from your intake tract. So, by very nature, they will only work as well as ambient temps allow. With a good enough single intercooler, you can achieve optimal intake temps (ambient), so there's nothing to be gained by using a secondary interccoler. It would basically become a restriction and wouldn't be able to pull out anymore heat than the first core already did. One intercooler is enough for any single turbo when sized properly.


Compound set-ups can use 2 intercoolers efficiently, but that's only because there's 2 stages of compression. 1 core between stages, and 1 bewteen the final stage and the intake manifold.

 

[Blackrose]

I never said it was practicle for a DSM. All I said is that it is sometimes done.

 

[GRAVEDIGGER]

Air-air intercoolers work by using ambient air to remove heat from your intake tract. So, by very nature, they will only work as well as ambient temps allow. With a good enough single intercooler, you can achieve optimal intake temps (ambient), so there's nothing to be gained by using a secondary interccoler. It would basically become a restriction and wouldn't be able to pull out anymore heat than the first core already did.

Nuff said. I'll take a word from the wise.

 

[Blackrose]

Right like I said, it is sometimes used on compound turbo systems. Thank you.

Air-air intercoolers work by using ambient air to remove heat from your intake tract. So, by very nature, they will only work as well as ambient temps allow. With a good enough single intercooler, you can achieve optimal intake temps (ambient), so there's nothing to be gained by using a secondary interccoler. It would basically become a restriction and wouldn't be able to pull out anymore heat than the first core already did. One intercooler is enough for any single turbo when sized properly.


Compound set-ups can use 2 intercoolers efficiently, but that's only because there's 2 stages of compression. 1 core between stages, and 1 bewteen the final stage and the intake manifold.

Well OP, if you didnt already figure it out then running 2 IC's isnt just impracticale it has no benifit at all.

 

[Thomas91169]

FMIC+Meth or SMIC+Meth. It gets the job done.

FMIC+SMIC = fail. whatever cooling the FMIC does will be negated by the crappiness of the SMIC.