C4 oil coolers?
02-28-2008, 09:03 PM
#1
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St. Jude Donor '05
C4 oil coolers?
My radiator just cracked, so I'm about to pull the trigger on a Dewitts job with EOC.
Q: is there a block-off plate for the C4 (like the C5 had), or do I need a sandwich adapter? Any suggested models?
Vettedrmr had a nice write-up for the C5 oil cooler install- any luck there's one for the C4?
Anything else you fellas recommend before I rip this puppy out? I already have an electric WP- I'll be checking it to make sure it's still in running order and I'll be replacing the thermo at the same time.
Q: is there a block-off plate for the C4 (like the C5 had), or do I need a sandwich adapter? Any suggested models?
Vettedrmr had a nice write-up for the C5 oil cooler install- any luck there's one for the C4?
Anything else you fellas recommend before I rip this puppy out? I already have an electric WP- I'll be checking it to make sure it's still in running order and I'll be replacing the thermo at the same time.
02-28-2008, 09:15 PM
#2
Race Director
I've been thinking about not using the radiator and using these parts instead:
Thermostat adapter
http://store.summitracing.com/partde...503ERL&FROM=MG
Cooler, out in front perhaps.
http://store.summitracing.com/partde...010ERL&FROM=MG
-10 AN hose
http://store.summitracing.com/partde...CV1010&FROM=MG
I've got it wishlisted and am waiting to see what oil temps are like this summer.
Thermostat adapter
http://store.summitracing.com/partde...503ERL&FROM=MG
Cooler, out in front perhaps.
http://store.summitracing.com/partde...010ERL&FROM=MG
-10 AN hose
http://store.summitracing.com/partde...CV1010&FROM=MG
I've got it wishlisted and am waiting to see what oil temps are like this summer.
02-28-2008, 09:25 PM
#3
Le Mans Master
Corvette Kid NC, ScaryFast and Conv90 have chosen the DeWitt w/
EOC.
IIRC, CKNC was first and he had some questions about the fittings.
Later, in post #17 of Conv90's following thread, Tom DeWitt comments
about a running production change that was made to increase the size
of the fittings
Besides the sandwich adapter you mention and the two shown in Con90's
thread, there is also a version that spins on in place of a filter. TransDapt
and Mr Gasket sell them. (The advantage of the latter is that it permits
you to keep the OEM oil cooler if desired.)
Only the sandwich-style adapter allows the filter to be retained in the
OEM location. The other three require remote filter provisions.
As for advice - take the time to minimize the number of fittings and
try to limit bend radi to a max of 45º.
.
EOC.
IIRC, CKNC was first and he had some questions about the fittings.
Later, in post #17 of Conv90's following thread, Tom DeWitt comments
about a running production change that was made to increase the size
of the fittings
"We fought the over sizing line sizes that people felt they needed but
failed to convince anyone so we just caved in and changed to port
sizes to 3/4"-16 SAE O'ring ports. We install an adapter that goes from
3/4-16 to #10 AN male, ..."
Considering DeWitts rad with internal EOCfailed to convince anyone so we just caved in and changed to port
sizes to 3/4"-16 SAE O'ring ports. We install an adapter that goes from
3/4-16 to #10 AN male, ..."
Besides the sandwich adapter you mention and the two shown in Con90's
thread, there is also a version that spins on in place of a filter. TransDapt
and Mr Gasket sell them. (The advantage of the latter is that it permits
you to keep the OEM oil cooler if desired.)
Only the sandwich-style adapter allows the filter to be retained in the
OEM location. The other three require remote filter provisions.
As for advice - take the time to minimize the number of fittings and
try to limit bend radi to a max of 45º.
.
02-28-2008, 09:30 PM
#4
Team Owner
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St. Jude Donor '05
Corvette Kid NC, ScaryFast and Conv90 have chosen the DeWitt w/
EOC.
IIRC, CKNC was first and he had some questions about the fittings.
Later, in post #17 of Conv90's following thread, Tom DeWitt comments
about a running production change that was made to increase the size
of the fittings
Besides the sandwich adapter you mention and the two shown in Con90's
thread, there is also a version that spins on in place of a filter. TransDapt
and Mr Gasket sell them. (The advantage of the latter is that it permits
you to keep the OEM oil cooler if desired.)
Only the sandwich-style adapter allows the filter to be retained in the
OEM location. The other three require remote filter provisions.
As for advice - take the time to minimize the number of fittings and
try to limit bend radi to a max of 45º.
.
EOC.
IIRC, CKNC was first and he had some questions about the fittings.
Later, in post #17 of Conv90's following thread, Tom DeWitt comments
about a running production change that was made to increase the size
of the fittings
"We fought the over sizing line sizes that people felt they needed but
failed to convince anyone so we just caved in and changed to port
sizes to 3/4"-16 SAE O'ring ports. We install an adapter that goes from
3/4-16 to #10 AN male, ..."
Considering DeWitts rad with internal EOCfailed to convince anyone so we just caved in and changed to port
sizes to 3/4"-16 SAE O'ring ports. We install an adapter that goes from
3/4-16 to #10 AN male, ..."
Besides the sandwich adapter you mention and the two shown in Con90's
thread, there is also a version that spins on in place of a filter. TransDapt
and Mr Gasket sell them. (The advantage of the latter is that it permits
you to keep the OEM oil cooler if desired.)
Only the sandwich-style adapter allows the filter to be retained in the
OEM location. The other three require remote filter provisions.
As for advice - take the time to minimize the number of fittings and
try to limit bend radi to a max of 45º.
.
This thing has an oil cooler already? Where??
02-28-2008, 09:39 PM
#5
Le Mans Master
Some L98 cars were fitted with an optional oil-to-water heat exchanger.
This was a sandwich that fit between the block and filter. Coolent lines
from the lower passenger side of the block and one of the heater hoses
provided flow. I believe the last year these were used was '91.
Back to the DeWitt rad w/ EOC.
There was a thread where KDUniverse had a problem and before it
became clear that he did NOT have an EOC, there was a discussion
about the consequences of a leak that permitted coolant into the
EOC chamber.
Coolant In Oil
ScaryFast started a new thread for futher discussion
Attn: Tom DeWitt - question about cracked EOC in radiator
While there is potential for a problem when a radiator has an EOC, there
are also benefits. Faster warmup, more efficient heat transfer and so
on.
.
This was a sandwich that fit between the block and filter. Coolent lines
from the lower passenger side of the block and one of the heater hoses
provided flow. I believe the last year these were used was '91.
Back to the DeWitt rad w/ EOC.
There was a thread where KDUniverse had a problem and before it
became clear that he did NOT have an EOC, there was a discussion
about the consequences of a leak that permitted coolant into the
EOC chamber.
Coolant In Oil
ScaryFast started a new thread for futher discussion
Attn: Tom DeWitt - question about cracked EOC in radiator
While there is potential for a problem when a radiator has an EOC, there
are also benefits. Faster warmup, more efficient heat transfer and so
on.
.
02-28-2008, 09:54 PM
#7
Le Mans Master
96GS#007 discussed the issue that LT1/LT4 owners face regarding
the offset filter adapter used for these engines.
He wrote about exploring the suitability of an OEM offset adapter
supplied on the 9C1 Police Pkg for the Impala.
LT4 Oil Cooler...cross post from C4 Tech/Performance
.
the offset filter adapter used for these engines.
He wrote about exploring the suitability of an OEM offset adapter
supplied on the 9C1 Police Pkg for the Impala.
LT4 Oil Cooler...cross post from C4 Tech/Performance
.
02-28-2008, 11:25 PM
#10
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St. Jude Donor '05
So it looks like there's not a sandwich adapter because of the offset oil filter adapter?
02-28-2008, 11:53 PM
#11
Le Mans Master
96GS#007 discussed the issue that LT1/LT4 owners face regarding
the offset filter adapter used for these engines.
He wrote about exploring the suitability of an OEM offset adapter
supplied on the 9C1 Police Pkg for the Impala.
LT4 Oil Cooler...cross post from C4 Tech/Performance
.
the offset filter adapter used for these engines.
He wrote about exploring the suitability of an OEM offset adapter
supplied on the 9C1 Police Pkg for the Impala.
LT4 Oil Cooler...cross post from C4 Tech/Performance
.
02-29-2008, 11:38 AM
#12
Burning Brakes
Oil Cooler
I installed a Ron Davis radiator w/oil cooler from DRM. I got the radiator, braided lines, AN fittings and block adapter all in one kit. Check with Randy at DRM and see if he can help you out. The whole set-up has worked very well for me. 
02-29-2008, 12:26 PM
#13
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St. Jude Donor '05
Any idea how much hose I need?
So far I have ordered the Canton sanwich adapter from above and the Dewitts Radiator with EOC. Now I just need the fittings and hose.
So far I have ordered the Canton sanwich adapter from above and the Dewitts Radiator with EOC. Now I just need the fittings and hose.
03-01-2008, 08:16 PM
#14
Racer
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ZR1 cooler
I installed a factory type ZR1 oil cooler made by Fluidyne.
check hrpworld.com
Earls adapter with blue aeroquip lines.
I've also removed the AC so I don't know about the oil cooler and the AC.
check hrpworld.com
Earls adapter with blue aeroquip lines.
I've also removed the AC so I don't know about the oil cooler and the AC.
03-01-2008, 09:56 PM
#15
Safety Car
Ken's been helping us out around here for years...
I don't know how much hose to recommend since I run two coolers as mentioned above, but a simple measurement along your intended path shouldn't be too hard. I used some "P" clips and fastened the hose to the front crossmember. (zip ties were temporary
)
Make sure you fill in all the cracks around the new rad when you install it to force the air through it instead of around it...
I don't know how much hose to recommend since I run two coolers as mentioned above, but a simple measurement along your intended path shouldn't be too hard. I used some "P" clips and fastened the hose to the front crossmember. (zip ties were temporary
)Make sure you fill in all the cracks around the new rad when you install it to force the air through it instead of around it...
Last edited by ScaryFast; 03-01-2008 at 10:05 PM.
03-01-2008, 11:37 PM
#16
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St. Jude Donor '05
Look like 15' of hose is about perfect. I'll be sure take a ton of pictures and write a little procedure for future folks....
Radiator is out. Aside from the six 7mm screws on either side of the shroud, it wasn't bad. I am, however, going to f**king kill the engineer who decided to cram those six tiny little screws next to the frame rail... The one on the driver's side was completely inaccessable with the AIR crap in the way....
No word from Tom as to when the radiator will be delivered (ordered Friday morning), but I ordered the lines and fittings ($160 worth
) this morning from Jegs. Hoping to have the car back together by next weekend.
The radiator has several small little cracks on the passenger side-tank. I didn't realize until I got it out that the side tanks were plastic.
Checked the pump- it's running just fine and the thermostat looks fine (not siezed) but I replaced it anyway.
Radiator is out. Aside from the six 7mm screws on either side of the shroud, it wasn't bad. I am, however, going to f**king kill the engineer who decided to cram those six tiny little screws next to the frame rail... The one on the driver's side was completely inaccessable with the AIR crap in the way....
No word from Tom as to when the radiator will be delivered (ordered Friday morning), but I ordered the lines and fittings ($160 worth
) this morning from Jegs. Hoping to have the car back together by next weekend.The radiator has several small little cracks on the passenger side-tank. I didn't realize until I got it out that the side tanks were plastic.
Checked the pump- it's running just fine and the thermostat looks fine (not siezed) but I replaced it anyway.
Last edited by Umrswimr; 03-01-2008 at 11:42 PM.
03-02-2008, 10:21 AM
#17
Melting Slicks
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There IS a sandwich adaptor for C4's with an offset oil filter. I have one that I got from DRM -- I'm not sure who the manufacturer is, though.
I'm actually pulling mine off because I'm switching to a dry sump system. I've been running -10 lines as recommended by DRM and it worked like a champ. As soon as I pull it off I'll sell it on the forum.
I'm actually pulling mine off because I'm switching to a dry sump system. I've been running -10 lines as recommended by DRM and it worked like a champ. As soon as I pull it off I'll sell it on the forum.
03-02-2008, 11:41 AM
#18
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St. Jude Donor '05
There IS a sandwich adaptor for C4's with an offset oil filter. I have one that I got from DRM -- I'm not sure who the manufacturer is, though.
I'm actually pulling mine off because I'm switching to a dry sump system. I've been running -10 lines as recommended by DRM and it worked like a champ. As soon as I pull it off I'll sell it on the forum.
I'm actually pulling mine off because I'm switching to a dry sump system. I've been running -10 lines as recommended by DRM and it worked like a champ. As soon as I pull it off I'll sell it on the forum.
03-03-2008, 01:16 PM
#19
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Radiator is out. Aside from the six 7mm screws on either side of the shroud, it wasn't bad. I am, however, going to f**king kill the engineer who decided to cram those six tiny little screws next to the frame rail... The one on the driver's side was completely inaccessable with the AIR crap in the way....
If you want to reinstall them, put them in from the backwards from the inside of the duct under the car. Most people leave them out.
Removing the AIR pump and horns and reaching under the frame rail is the best way to get at them.
03-04-2008, 12:19 AM
#20
Burning Brakes
Ken's been helping us out around here for years...
I don't know how much hose to recommend since I run two coolers as mentioned above, but a simple measurement along your intended path shouldn't be too hard. I used some "P" clips and fastened the hose to the front crossmember. (zip ties were temporary)
Make sure you fill in all the cracks around the new rad when you install it to force the air through it instead of around it...
I don't know how much hose to recommend since I run two coolers as mentioned above, but a simple measurement along your intended path shouldn't be too hard. I used some "P" clips and fastened the hose to the front crossmember. (zip ties were temporary
)Make sure you fill in all the cracks around the new rad when you install it to force the air through it instead of around it...
fwiw i like a seperate oil cooler so when i scater the motor (notice i said when not if) you just chuck it and get an other one i use a sandwich adapter and make sure you can get all the air you can to the rad.. http://www.acivette.com/ get yourself one of the lower three front spoilers on the c4 page i got the one with the real fake brake ducts 
it did doo a lot for air flow... more ground clearance than stock
