Over the weekend the boys of RENNtech sent us details of their new intercooler pump upgrade available for both Kompressor and V12-powered Mercedes.  As with the RENNtech SLR we told you about last week, RENNtech engineers believe the Mercedes' stock intercooler is the "Achilles' heel" of the powerful Mercedes lineup, discovering that stock power dropped quickly as the vehicles' temperature rose. 

According to Hartmut Feyhl, who started RENNtech in
1989 (after 12 years with AMG, eventually becoming the
company's technical director):  "In some cars, the
superchargers were being 'switched off' almost
completely.  We knew, then, that simply getting more air into the engines with a bigger pulley or throttle - which was making quite a bit more more power already - wasn't enough. We needed to offer consistent power, so our customers could make back-to-back-to-back runs at maximum output, and without the kind of engine wear that normally comes with more heat."

And so the RENNtech intercooler pump upgrade was born, designed to drop intake temperature and allow the engine to run even more boost pressure with additional cool, oxygen-rich air.  Taking the form of a complete redesign of the intercooler systems, stock pumps are replaced with RENNtech-specific pumps featuring almost double the capacity of outgoing units; dedicated radiators are installed; and each of the new pieces are integrated into the engine bay almost invisibly.  The result is a drop in intake temperatures an average of 10 degrees Celsius across the operating range, while the time it took to get the engines' temperatures back to normal after a dyno run was reduced from 2 minutes to about 20 seconds.

If you're interested, as already mentioned, the RENNtech intercooler pump upgrade is available for both Kompressor and V12 turbo Mercedes models, and works in conjunction with RENNtech's ECU software upgrades, throttle-bodies and pulley kits.  To learn more, keep reading for the official press release detailing the intercooler pump upgrade, or contact RENNtech for ordering and pricing info.

Enjoy.










OFFICIAL PRESS RELEASE


RENNtech APPROACH TO FORCED INDUCTION

Lake Park, FL - 20APR2007 - The "horsepower war"
waged between Detroit's Big Three in the 1960's
seems more like a cafeteria food-fight next to what's
going on in Germany these days. 500 horsepower
cars are common and 400 horsepower cars don't even
blip the enthusiast radar. In times like these, power-
hungry enthusiasts often turn to Mercedes-Benz' bi-
turbo and "kompressor" models... but for some, even
a twin-turbo V12 isn't enough.

Enter RENNtech, where enough is never enough and
too much is considered a good start. "We actually had
one customer complain that his new S600 was too
fast!" laughs Hartmut Feyhl, who started RENNtech in
1989 (after 12 years at AMG, eventually becoming that
company's technical director). "Just one, though -
everyone always wants more." To get More out of
their engines, the crew at RENNtech approaches forced
induction cars as complete systems. "We were looking
for a total power solution, not just a component 'fix'
like a pulley or a loud exhaust. That way, we could be
sure that all our parts worked together to increase
power, and also maintain the reliability and refinement
of the stock vehicle."

RENNtech identified the intercoolers as the "Achilles'
heel" of the turbo and kompressor cars their
customers were bringing in. The cars made good
peak power, but even stock power dropped off quickly
as the temperatures rose. "In some cars, the
superchargers were being 'switched off' almost
completely," explains Feyhl. "We knew, then, that
simply getting more air into the engines with a bigger
pulley or throttle - which was making quite a bit more
more power already - wasn't enough. We needed to
offer consistent power, so our customers could make
back-to-back-to-back runs at maximum output, and
without the kind of engine wear that normally comes
with more heat."

With that goal in mind, Feyhl and company developed
RENNtech's intercooler pump upgrade, which drops
intake temperatures and allows the engine to run even
more boost pressure with more cool, oxygen-rich air.
"It's a must-have." says Feyhl, who has seen
horsepower climb well beyond the magic '700' mark
on RENNtech's chassis dyno. RENNtech's upgrade
takes the form of a complete redesign of the
intercooler systems on the AMG 55 and 65 cars, as
well as the 600s and SLR. The stock pumps are
replaced with RENNtech-specific pumps with almost
double the capacity of outgoing units. Dedicated
radiators are installed, and the new pieces are
integrated into the engine bay almost invisibly. As
Feyhl points out, It looks like it s supposed to be
there.

The results are impressive: RENNtech's intercooler
upgrade dropped intake temperatures an average of
10 degrees Celsius across the operating range, and
the time it took to get the engine s temperatures back
to normal after a dyno run was greatly reduced.
We used to have to wait almost 2 minutes between
dyno runs to the get the temperatures back down,
even with big fans blowing, says Feyhl. Now it takes
about 20 seconds.

The intercooler pump upgrade is available for
Mercedes' "kompressor" and V12 turbo cars, and
works in concert with RENNtech's ECU software
upgrades, throttle-bodies, and pulley kits for
maximum results. As always, though, even that isn't
enough for some people - and for the most extreme
power cravings, RENNtech offers a fully separate top-
mounted intercooler package for the 55 AMG
Kompressor cars for maximum boost and cooling. Call
RENNtech for pricing.

Copyright © 2007, RENNtech