| Author | Message | ||
| 1975GT4Don (1975gt4don)
New member Username: 1975gt4don Post Number: 44 Registered: 1-2002 |
Well gentlemen, I believe the verdict is in. Hayden rocks, lucas sucks. It is that simple. Want a cooler F car---go with Hayden. Want a constant cooling problem---go with lucas. | ||
| Mark C. Gordon (Markg)
Junior Member Username: Markg Post Number: 148 Registered: 2-2001 |
I replaced my right side fan with a 10" Hayden when the Lucas one "crossed over". I did a make-shift but sturdy install, will do a more professional installation later. The Hayden fan is a bit noisy but feels like a 200% increase in air flow!! (82 GTSi) | ||
| BretM (Bretm)
Intermediate Member Username: Bretm Post Number: 2061 Registered: 2-2001 |
They seemed to be about the same sound level to me, running them with the bonnet off and all the stuff out. My car had Italian fans in it thought before, not Lucas like are normally found (maybe they aren't found in the QVs normally?). They are the same dimensions and all as the Lucas fans so who knows why I had Italian ones. I liked how when the old fans kicked on you could hear it. They definitely push a lot more air like Greg said. | ||
| Greg Rodgers (Joechristmas)
Junior Member Username: Joechristmas Post Number: 166 Registered: 3-2001 |
Yes, they are much quieter and I feel they move much more air. If you connect them to a battery and hold the tight it will amaze you how much air they move. | ||
| Peter B. (Gts308qv)
Junior Member Username: Gts308qv Post Number: 189 Registered: 5-2001 |
Quick question Bret! Do the new fans actually push more air than stock and are they quieter in operation ? | ||
| djmonk (Davem)
New member Username: Davem Post Number: 14 Registered: 1-2002 |
Glad to see this thread as have been thinking about doing this to my 83 Mondial Euro. If i am correct the Euro models have only 1 fan as opposed to the 2 for U.S cars which puts me at a disadvantage allready. So has anybody done this to a Mondial? Any tips? Thanks in advance | ||
| Edward Gault (Irfgt)
Member Username: Irfgt Post Number: 913 Registered: 2-2001 |
If you are driving down the road the fans will "Windmill" and the blockage of the radiator by the fans will be negligable. Mercedes uses a huge pusher fan in front of their radiators for high temp A/C operation and it causes no problems. | ||
| 1975GT4Don (1975gt4don)
New member Username: 1975gt4don Post Number: 43 Registered: 1-2002 |
Tom, you are correct. Stupid me, I forgot that the radiator was still out of the car. Duh. BretM is still using the stock config. Sorry for any confusion on my part. | ||
| TomD (Tifosi)
Member Username: Tifosi Post Number: 434 Registered: 9-2001 |
sam our mondials are the other way round | ||
| Paul Sloan (Sloan83qv)
Member Username: Sloan83qv Post Number: 281 Registered: 3-2001 |
Sam, The photo is somewhat misleading but the fans are set up as pushers (like a stock 308), the radiator and AC condensor are not installed in photo. | ||
| BretM (Bretm)
Intermediate Member Username: Bretm Post Number: 2046 Registered: 2-2001 |
The stock fans also sit in front of both the A/C condenser and radiator, so I don't understand what you're getting at? Almost all high performance electric fans blow rather than suck, most front engine cars suck because the fan is mounted right on the balancer and it is convenient. You couldn't set up a 308 with a sucking set up (and wouldn't really gain anything because the air flow on a QV is set up to be blown in by motion or a fan and then sucked out the top of the hood by a Venturi effect)without hacking out the whole spare tire area. EVERYBODY SHOULD DO THEIR HOSES. I thought mine were done because all the engine hoses were done. Upon checking though only the engine hoses were done. The insides of the stock hoses were like brown jello, disgusting. | ||
| Sam NYCFERRARIS (Sam)
Member Username: Sam Post Number: 324 Registered: 4-2001 |
confused a little here. It looks to me that Bret's fans (as are most aftermarket fans) are set-up to sit in front of the a/c + Rad and blow air to the rear through the radiator. Doesn't this set-up block the airflow through the rad when the car is moving? Most stock set-up have the fans after the rad and use a "suction" to pull the sir through the rad but don't block airflow when car is moving. Which is Bret's set-up and maybe I am not understanding the pics right, but this set-up will this set-up reduce efficiency of air flow when car is moving requiring the fans to be on an awful lot of the time (probably a good thing in a 308 since mine heats up right away in NYC traffic and I will be following Brets lead here and doing EXACTLY what he did with hoses, rad and I fear, also heater hoses). | ||
| 1975GT4Don (1975gt4don)
New member Username: 1975gt4don Post Number: 42 Registered: 1-2002 |
BretM, thank you very much for the pics. I have always wondered myself whether or not the suction config is better than the blowing config(OEM configuration). You have opted for the suction config and my bet is that it will be better. I love the look of your fans also, so much better than thos butt ugly lucas fans that rust and are made with British technology. You were smart in using the existing wire and relays/temp controls, that should work out fine for you. | ||
| BretM (Bretm)
Intermediate Member Username: Bretm Post Number: 2043 Registered: 2-2001 |
I didn't wire them yet, spent so much time last week working and then I had to go back to school last night, so kind of ran out of time and I was pretty tired (had to still drive like 3 hours that night). You can see in the third pic where the wires are hanging off the fan and the stock wiring harnesses. I'm gonna wire them in just like the stock ones attached (with clips, so when I realize I have the wires reversed I can swap them, then I'll just tape the up the connections). So, it will run just like the stock fans did, the temp switch will still control them, and the A/C will still turn on one automatically. It should work real well. | ||
| ctk (Ctk)
New member Username: Ctk Post Number: 49 Registered: 7-2001 |
Brett, Just a thought. Did you wire the fans up separately and using relays? Also the water temp. switch that triggers the second speed, did you keep it or have you bypassed the whole system? I put in a large Bosch fan in my QV, works really well and is quiet but would prefer two fans just in case one fails on me. | ||
| Greg Rodgers (Joechristmas)
Junior Member Username: Joechristmas Post Number: 164 Registered: 3-2001 |
Great job. You will be very pleased with them. I like them a lot. They move lots of air. Plus they are very quiet. | ||
| '75 308 GT4 (Peter)
Intermediate Member Username: Peter Post Number: 1723 Registered: 12-2000 |
Very professional installation Bret. Are the fans triggered by the original temp switch on the rad? | ||
| BretM (Bretm)
Intermediate Member Username: Bretm Post Number: 2042 Registered: 2-2001 |
This one I have to mostly give my Dad credit for. He designed and fabricated all this stuff while I was doing the heater hoses and then we finished painting, tapping, etc today and then put it all in. I got the fans (Hayden 3680 from Pep Boys last week). They each flow 675cfm across a radiator. We had to cut out the OEM fan mounts, came out pretty easily with a grinder and w/cutting disk on it. Then he welded up a bracket to hang the fans from, which was attached to the horn mount in the middle there. The fans are also connected in the middle with a small steel plate with holes tapped and bolts put in through the mounting holes in the fan. The fans are mounted to a piece of angle iron on the bottom, which has been ground out to follow the circular fan on the one edge. They sit on this angle which gets bolted into the brackets on the bottom (the brackets are tapped so after the bolts go in they can be cut down as to not hit the A/C condenser, probably not enough room for a nut). The brackets on the bottom that catch the angle are bolted into the frame with self tapping screws. All brackets, etc attached to the frame sit on rubber grommets (just rubber washers under the bolt basically) in order to prevent vibration. This is a pretty concise description of what was done. There is quite a bit of work here to do it really right, but as usual it's worth it. We were playing with them a bit with the car battery after installing, each one is little short of a hurricane, both on is pretty overwhelming. Here's the fans in the angle iron they sit in:  Bottom brackets:  Front view:  Top bracket:  |