TravisJB Journal

03Z33 · 02-19-2013, 04:58 PM

Not sure how much those Laminova's are going for but you can pick up a C&R Cooler for under $500:

External Heat Exchanger « C&R Racing

Or if you haven't swapped radiators yet, they do a radiator with the oil cooler built in like these:

Racing Heat Exchange Radiator « C&R Racing

travisjb · 02-19-2013, 06:08 PM

^thx for posting... the combined unit looks like a good idea for our car, cleans things up and saves space for whatever else...

laminova claim to fame is no pressure loss across the unit, which is nice to have on our cars given the relatively high oil flow rate... wonder how the C&R units are on that dimension?

03Z33 · 02-20-2013, 09:07 AM

Heat rejection and pressure drop figures are in the bottom left corner of the dimensions pdf here:

http://www.crracing.com/wp-content/u...er_diagram.pdf

In general L/L heat exchangers are more efficient and have lower pressure drop than a comparably sized A/L core. They claim that the L/L cores they build into the radiators have even lower pressure drops than the remote mount units.

travisjb · 02-20-2013, 10:09 AM

Helpful data thanks... maybe someone more technical than myself can come in here and explain the benefits of ~0 psi pressure drop vs ~2 psi pressure drop... does it really matter?

Also curious which setup among the three saves the most weight... seems like combined radiator/cooler design should be the most weight efficient

SPOHN · 02-24-2013, 11:47 AM

^ I was just a hair short due to the lip on one of the pullies. I had to remove the pulley and carefull retighten the pulley bolt without stripping due to the slight pressure on it. Worked fine.

travisjb · 02-24-2013, 12:17 PM

Good for you, unfortunately mine's just too far... I think that's why my car has been squeaking - belt was tight beyond the limit of the tensioner... 2 inches more should do it

MightyBobo · 02-24-2013, 12:24 PM

Quote:

Originally Posted by travisjb

... 2 inches more should do it

....nah, never mind...

Sent from my Galaxy S3

Mike · 03-07-2013, 06:48 PM

I'm going to that Chin event too in May!

Z Ya there!

SPOHN · 02-24-2013, 12:28 PM

Lol

travisjb · 03-03-2013, 12:22 PM

Good day at VIR yesterday, got into single digits... was hoping to better my time today, unfortunately battery was completely dead by this morning... Got the car jumped and tried to run but then when I hit the track, the fuel delivery was insufficient at idle or under acceleration. I'm assuming that the two are related and that the alternator doesn't have enough juice to run the walbro fuel pump with a dead battery - make sense to you guys? thanks

Mike · 03-03-2013, 12:25 PM

yeah, that is probably the problem, that or the alternator itself died.

travisjb · 03-03-2013, 02:28 PM

thanks, yeah, just ordered new battery and will test alternator too

cayenne still working out for towing? any regrets or setup issues? is the rear sag okay/within comfortable limits?

Mike · 03-03-2013, 02:31 PM

I've only towed the one time, but it pulled great, plus I got 20mpg on the short trip to Road Atlanta. It does sag a bit more than I would like. Someone with more towing experience on the Porsche forum recommended tying the car down about a foot farther back. I'm going to try that next time and see how it works out. Might need new straps though, as I cut the front ones down. Going back to Road A on the 18th with Chin, and then towing it down to Daytona in April with FlatOut.

No regrets on it though, I love driving it. Feels like driving a sport sedan.

travisjb · 03-03-2013, 04:06 PM

Sounds good... prob better to just shift the weight vs modding it with stiffer springs or whatever... the sag prob doesn't matter unless it is extreme and front end of trailer / rear of truck dives under braking

I may look into that RA CHIN event!

NEVER MIND, sold out! on a Monday! lol

Mike · 03-03-2013, 05:18 PM

too bad, would have loved for you to join us!

02-19-2013, 06:08 PM	#2 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 189	^thx for posting... the combined unit looks like a good idea for our car, cleans things up and saves space for whatever else... laminova claim to fame is no pressure loss across the unit, which is nice to have on our cars given the relatively high oil flow rate... wonder how the C&R units are on that dimension? __________________ 2009 370Z #104 For Sale

02-20-2013, 10:09 AM	#4 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 189	Helpful data thanks... maybe someone more technical than myself can come in here and explain the benefits of ~0 psi pressure drop vs ~2 psi pressure drop... does it really matter? Also curious which setup among the three saves the most weight... seems like combined radiator/cooler design should be the most weight efficient __________________ 2009 370Z #104 For Sale

02-24-2013, 11:47 AM	#5 (permalink)
SPOHN A True Z Fanatic Join Date: Feb 2010 Location: Covington, GA Age: 46 Posts: 14,844 Drives: Waiting on next Z Rep Power: 222	^ I was just a hair short due to the lip on one of the pullies. I had to remove the pulley and carefull retighten the pulley bolt without stripping due to the slight pressure on it. Worked fine. __________________

02-24-2013, 12:17 PM	#6 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 189	Good for you, unfortunately mine's just too far... I think that's why my car has been squeaking - belt was tight beyond the limit of the tensioner... 2 inches more should do it __________________ 2009 370Z #104 For Sale

03-07-2013, 06:48 PM	#8 (permalink)
Mike The370Z.com Sponsor Join Date: Jun 2009 Location: Loganville, GA Posts: 5,944 Drives: 370z Rep Power: 2186	I'm going to that Chin event too in May! Z Ya there! travisjb likes this. __________________ NISSAN: 75 280Z / 86 300ZX GLL /87 Sentra SE / 03 350Z / 23 Z Porsche: 93 968 / 23 Macan GTS / 93 968

02-19-2013, 04:58 PM	#1 (permalink)
03Z33 Base Member Join Date: Oct 2009 Location: socal Posts: 232 Drives: BRZ Rep Power: 16	Not sure how much those Laminova's are going for but you can pick up a C&R Cooler for under $500: External Heat Exchanger « C&R Racing Or if you haven't swapped radiators yet, they do a radiator with the oil cooler built in like these: Racing Heat Exchange Radiator « C&R Racing

02-20-2013, 09:07 AM	#3 (permalink)
03Z33 Base Member Join Date: Oct 2009 Location: socal Posts: 232 Drives: BRZ Rep Power: 16	Heat rejection and pressure drop figures are in the bottom left corner of the dimensions pdf here: http://www.crracing.com/wp-content/u...er_diagram.pdf In general L/L heat exchangers are more efficient and have lower pressure drop than a comparably sized A/L core. They claim that the L/L cores they build into the radiators have even lower pressure drops than the remote mount units.

02-24-2013, 12:28 PM	#9 (permalink)
SPOHN A True Z Fanatic Join Date: Feb 2010 Location: Covington, GA Age: 46 Posts: 14,844 Drives: Waiting on next Z Rep Power: 222	Lol __________________

03-03-2013, 12:22 PM	#10 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 189	Good day at VIR yesterday, got into single digits... was hoping to better my time today, unfortunately battery was completely dead by this morning... Got the car jumped and tried to run but then when I hit the track, the fuel delivery was insufficient at idle or under acceleration. I'm assuming that the two are related and that the alternator doesn't have enough juice to run the walbro fuel pump with a dead battery - make sense to you guys? thanks __________________ 2009 370Z #104 For Sale

03-03-2013, 12:25 PM	#11 (permalink)
Mike The370Z.com Sponsor Join Date: Jun 2009 Location: Loganville, GA Posts: 5,944 Drives: 370z Rep Power: 2186	yeah, that is probably the problem, that or the alternator itself died. __________________ NISSAN: 75 280Z / 86 300ZX GLL /87 Sentra SE / 03 350Z / 23 Z Porsche: 93 968 / 23 Macan GTS / 93 968

03-03-2013, 02:28 PM	#12 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 189	thanks, yeah, just ordered new battery and will test alternator too cayenne still working out for towing? any regrets or setup issues? is the rear sag okay/within comfortable limits? __________________ 2009 370Z #104 For Sale

03-03-2013, 02:31 PM	#13 (permalink)
Mike The370Z.com Sponsor Join Date: Jun 2009 Location: Loganville, GA Posts: 5,944 Drives: 370z Rep Power: 2186	I've only towed the one time, but it pulled great, plus I got 20mpg on the short trip to Road Atlanta. It does sag a bit more than I would like. Someone with more towing experience on the Porsche forum recommended tying the car down about a foot farther back. I'm going to try that next time and see how it works out. Might need new straps though, as I cut the front ones down. Going back to Road A on the 18th with Chin, and then towing it down to Daytona in April with FlatOut. No regrets on it though, I love driving it. Feels like driving a sport sedan. __________________ NISSAN: 75 280Z / 86 300ZX GLL /87 Sentra SE / 03 350Z / 23 Z Porsche: 93 968 / 23 Macan GTS / 93 968

03-03-2013, 04:06 PM	#14 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 189	Sounds good... prob better to just shift the weight vs modding it with stiffer springs or whatever... the sag prob doesn't matter unless it is extreme and front end of trailer / rear of truck dives under braking I may look into that RA CHIN event! NEVER MIND, sold out! on a Monday! lol __________________ 2009 370Z #104 For Sale Last edited by travisjb; 03-03-2013 at 04:09 PM.

03-03-2013, 05:18 PM	#15 (permalink)
Mike The370Z.com Sponsor Join Date: Jun 2009 Location: Loganville, GA Posts: 5,944 Drives: 370z Rep Power: 2186	too bad, would have loved for you to join us! __________________ NISSAN: 75 280Z / 86 300ZX GLL /87 Sentra SE / 03 350Z / 23 Z Porsche: 93 968 / 23 Macan GTS / 93 968

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