Topic: dewitts rad and fan combo.. whos got 'em?
in Forum: C3 Cooling and Heating Systems
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Former Member
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Willow Grove, PA - USA
Joined: 10/27/2006
Posts: 232
Vette(s): 1974 Stingray Coupe LS4 454 Dark Brown Metallic with Deluxe Saddle interior
thanks for all the great input....
but.... what AMP alternator are you guys using if you're running the dual fans?
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Lifetime MemberLanoka Harbor, NJ - USA
Joined: 12/21/2006
Posts: 828
Vette(s): 1975 metallic blue coupe with t-tops,L48, t/t steering, black leather interior. 1990 L98, white/red leather interior, auto,a/c
on my 75 the specs call for a 42 amp alt w/o a/c. with a/c--61 amp.
when i got my vette it had a 55 amp on it which i replaced with a 75
amp. as my a/c is not presently connected technically i have enought to
run fans but as i want to reconnect a/c at some point , i installed a
100 amp alt. if memory serves me right (sometimes it does work
), the fans specs say they draw 35 amps. hope this helps.
), the fans specs say they draw 35 amps. hope this helps.
LIFETIME MEMBER #97
THE DYNAMIC DUO
THE DYNAMIC DUO
Former Member
Send PM
Willow Grove, PA - USA
Joined: 10/27/2006
Posts: 232
Vette(s): 1974 Stingray Coupe LS4 454 Dark Brown Metallic with Deluxe Saddle interior
So, its safe to say I could get away with running a 63 amp alternator seeing as my car does not have A/C or any other heavy draw items?
Does running a higher amp alternator require changing any wires to a heavier guage?
Thanks, Jim
Lifetime MemberLanoka Harbor, NJ - USA
Joined: 12/21/2006
Posts: 828
Vette(s): 1975 metallic blue coupe with t-tops,L48, t/t steering, black leather interior. 1990 L98, white/red leather interior, auto,a/c
i would say you are pretty safe. as far as what i was told about
wiring, it would be okay to put in higher alt as the regulator will
control it plus you are not going to be under the constant draw all the
time. as a matter of fact i decided for now to leave the 75 amp
in until i get a/c working but will have the 100 amp for then.
LIFETIME MEMBER #97
THE DYNAMIC DUO
THE DYNAMIC DUO
Lifetime MemberIndianapolis, IN - USA
Joined: 9/3/2006
Posts: 2429
Vette(s): Silver 1974 Convertible - L82 4 speed
Low miles (was only 8,900 when I bought it in March 2006) - Now 54K miles. Original owner bought it as an investment for son's college expenses.
2008 Jetstream Blue Convertible
If you order from them, make sure you go with the "Black Beauty" (I think that's what they called it) option. They paint the radiator black and it looks more like a factory model. They say the way they do it, it does not effect cooling at all. I wish I had spent the extra $35. But other than that, I'm very happy with my DeWitts.
I wanted a Corvette my whole life, but I never dreamed of all the wonderful people I would meet because of it!
2014216132127r.jpg)
Lifetime MemberLanoka Harbor, NJ - USA
Joined: 12/21/2006
Posts: 828
Vette(s): 1975 metallic blue coupe with t-tops,L48, t/t steering, black leather interior. 1990 L98, white/red leather interior, auto,a/c
i didn't get it with that option. as i am not going the route of making
it totally original and i am adding a lot of chrome pieces to sort of
dress it up the aluminium kind of fits in the picture. i feel like my
brother does, who restored a 66 convertible (don't really want to sat
the name here) mustang. he feels that he put in what he liked as he
wants to drive the car and is not looking to see how much he can sell
it for. it is a beauty. i am not going to make my vette a museum piece
as i too want to drive and enjoy it and not just sitting around. that
i'll do when if i ever have the good fortune of owning more than one
corvette.
LIFETIME MEMBER #97
THE DYNAMIC DUO
THE DYNAMIC DUO
I put a 100 amp in mine and did not alter any wires
The problem I had with the electric fans & air is at idle the voltage would drop with a 100 amp so I had a 160 amp built ..no more voltage drop. Also since I installed the TKO 600 my rpms tend to be much lower than with the 4sp. Also rewired the complete car.
Alan
Former Member
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Willow Grove, PA - USA
Joined: 10/27/2006
Posts: 232
Vette(s): 1974 Stingray Coupe LS4 454 Dark Brown Metallic with Deluxe Saddle interior
Rad and fans arrived today, very nice looking setup... and it looks kinda straight forward to wire-up
Ill be installing it this weekend...
Former Member
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Willow Grove, PA - USA
Joined: 10/27/2006
Posts: 232
Vette(s): 1974 Stingray Coupe LS4 454 Dark Brown Metallic with Deluxe Saddle interior
Rad istalled.... will wire fans tomorrow night after work, we should be firing the car up on sunday...
I wonder if the car will enjoy all the new goodies...
New Cam and lifters
double roller timing chain and gears
stage 1 Stewart water pump w/ hi flow t-stat
HEI ignition with new wires and AC Rapidfire plugs
the dewitts rad setup
new valve springs and seals
rebuilt steering pump and power cylinder
in Forum: C3 Cooling and Heating Systems
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