Originally posted by Ronan:
...should I even expect this modded UIM to outperform the 98 SVT UIM?
Are the plenums actually enlarged during the EH process, or merely smoothened out? If they are not enlarged, then would a factory SVT UIM still outperform a modded standard UIM cause the internal diameters of the runners are larger on the SVT one?
Sorry if this is getting confusing, I am trying to figure out what I should be expecting!  ...
Ronan, according to the flow #'s from Derek in the EH Group Buy forum the EH'd SE UIM should flow 285.3 cfm vs 266.3 cfm for a stock SVT:
Originally posted by Derk2000:
I've been moving  , but here's a quick update from Rick:
Derek, I finished airflow on Friday. The SVT intake airflow avg. before
is 266.3 cfm. After Extrude hone processing the avg. airflow is 288.9.
The stock intake airflow avg. before is 251.7 after the airflow avg. is
285.3. We used a SVT lower intake for airflow
It don't know that the plenums are enlarged, but would think they have to be to see that increase in flow. Rick at EH would be the one to ask.
The EH'd SE UIM should outperform the stock SVT due to the 7% increase in cfm flow. The difference may not be fully noticed (only partially) until you install the SVT cams, as I don't know if the non-SVT cams are looking for more air or not. It's been shown the the SVT cams can certainly make good power with more air.
Regards, Alan
03 Volvo S60 2.5T AWD
98 Mystique 2.5 MTX
99 SVT - Inheriting Lil Monster's parts
98 SVT - Lil Monster (RIP) 183.7 whp
Quaife/Fidanza/UR UD Clutch
AFE/MSDS/SHO-Y/Bassani/MagnaCore
GC/Koni/22mmR/EndLinks/ES/
KVR Slotted/1144's/SS Lines/MASItaly
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