Hustler 500efi engine tear down & Build Up
12-03-2004, 11:47 AM
#91
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Re: Hustler 500efi engine tear down & Build Up
It's weird to see Strip in any other thread than "uncensored" keep the pics coming and good luck with the rebuild! 
12-03-2004, 01:06 PM
#92
Registered
Re: Hustler 500efi engine tear down & Build Up
Rob: How much hatch clearance do you have above the stock upper plenum? I may have an option for you.
You know what you're getting with Procharger; there' a reason for the low price. By the time you have changed injectors, made the fuel system right and had Mark reprogram, the price advantage isn't there anymore. I have no first hand experience with Whipple, but I hear too many stories. I can only speculate that problems are due to ECU setups that are on the edge and maybe fuel distribution.
Procharger's kit for your engines uses a big intercooler, but it is mounted in the bilge. You need 5 - 6 @ 90 degree elbows to connect the dots. High resistance to air flow makes the blower work too hard and too hot. The Whipple kit uses a small intercooler and dumps the fuel in before the blower and intercooler. No more port injection. All the fuel is dumped into the front of the intake. Does this cause fuel distribution problems? I don't know. But I hate small intercoolers.
IMHO the best design would use a centrifugal blower, a big intercooler, no elbows and retain the port injection. It should also look good. Sorry for the plug, we now return to our regular scheduled program.
You know what you're getting with Procharger; there' a reason for the low price. By the time you have changed injectors, made the fuel system right and had Mark reprogram, the price advantage isn't there anymore. I have no first hand experience with Whipple, but I hear too many stories. I can only speculate that problems are due to ECU setups that are on the edge and maybe fuel distribution.
Procharger's kit for your engines uses a big intercooler, but it is mounted in the bilge. You need 5 - 6 @ 90 degree elbows to connect the dots. High resistance to air flow makes the blower work too hard and too hot. The Whipple kit uses a small intercooler and dumps the fuel in before the blower and intercooler. No more port injection. All the fuel is dumped into the front of the intake. Does this cause fuel distribution problems? I don't know. But I hate small intercoolers.
IMHO the best design would use a centrifugal blower, a big intercooler, no elbows and retain the port injection. It should also look good. Sorry for the plug, we now return to our regular scheduled program.
12-03-2004, 03:31 PM
#93
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Re: Hustler 500efi engine tear down & Build Up
Is that the stock rod? Mine looked like this for a 2002 model:
I went with the Eagle rods for the rebuild. The engine builder didn't like pressed pins and GM pistons (rings).
I haven't had any problems with my Vortech on the 500EFI with 100 hours on it so far.
Anybody looking for a set of the stock rods?
I went with the Eagle rods for the rebuild. The engine builder didn't like pressed pins and GM pistons (rings).
I haven't had any problems with my Vortech on the 500EFI with 100 hours on it so far.
Anybody looking for a set of the stock rods?
12-03-2004, 05:18 PM
#95
'05 Concept SF23
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Re: Hustler 500efi engine tear down & Build Up
Strip, I have had good results with the Eagle rods in blower applications (540 CU IN/800 HP). Do opt for the L19 high strength bolts. Also had Eagle stroker cranks with double key in these motors. All held up well.
12-03-2004, 05:28 PM
#96
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Re: Hustler 500efi engine tear down & Build Up
Fountain Climber
What did those rods come out of? They look like a Eagle rod but you say the were pressed on? Are there any markings on the rod bolts?
I have seen that cut on some Merc diagrams, but all rods I see coming out of motors are GM dimple rods.
What did those rods come out of? They look like a Eagle rod but you say the were pressed on? Are there any markings on the rod bolts?
I have seen that cut on some Merc diagrams, but all rods I see coming out of motors are GM dimple rods.
12-03-2004, 06:02 PM
#97
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Re: Hustler 500efi engine tear down & Build Up
Linster,
These are the stock rods from a 500EFI which is why I asked if Stip Pokers were also stock.
Bolts say ARP 8740.
They were pressed fit pins. The machine shop said that it was more cost effective to buy new Eagle rods than have these converted to floating pins. Plus I wanted to get the boat in the water asap.
F
These are the stock rods from a 500EFI which is why I asked if Stip Pokers were also stock.
Bolts say ARP 8740.
They were pressed fit pins. The machine shop said that it was more cost effective to buy new Eagle rods than have these converted to floating pins. Plus I wanted to get the boat in the water asap.
F
12-04-2004, 12:39 AM
#98
Rob
VIP MemberThread Starter
Re: Hustler 500efi engine tear down & Build Up
Originally Posted by Linster
On our poker run last year two boats showed up with Whipple's. A 388 just like yours and a 43 Black Thunder. When it was time to leave the docks, the 43 had one engine that would not run right, loading up, sounded like hitting on 5 cylinders. The other engine was puffing smoke out at start up but seemed to clear up after numerous high rev's.
The 388 was being towed to the ramp on the return trip where both motors let go. Not sure what the problem was.
I still like carbs over the EFI's for the simple fact, I can adjust them right away. I think EFI programming should be done live by running the motors installed in the boats, with the programmer on board.
I looked at the Prochargers also. They are cheaper, but I think the are the worst looking set up from appearance stand point. A good roots blower with twin carbs, just looks great.
I 'm not trying to degrade any blower set up. With proper setup, they all work, sometimes it takes extra effort to get the setup correct after following all directions. I think that is why people have complaints in these forums. They followed all the instructions, but they ended up with a setup that needed extra work. Then they were stuck not knowing where to go, what the fix is, and the manufacturer gets the bashing.
I still think a blower is a high maintenance motor, but you get big power when it works, and you get big bills when it brakes.
I can't believe the rods. What a lousy machine shop that would do hat. I've only seen that one other time. I used Eagle rods with very good luck. I always got the L19 rod bolts.
Good Luck
The 388 was being towed to the ramp on the return trip where both motors let go. Not sure what the problem was.
I still like carbs over the EFI's for the simple fact, I can adjust them right away. I think EFI programming should be done live by running the motors installed in the boats, with the programmer on board.
I looked at the Prochargers also. They are cheaper, but I think the are the worst looking set up from appearance stand point. A good roots blower with twin carbs, just looks great.
I 'm not trying to degrade any blower set up. With proper setup, they all work, sometimes it takes extra effort to get the setup correct after following all directions. I think that is why people have complaints in these forums. They followed all the instructions, but they ended up with a setup that needed extra work. Then they were stuck not knowing where to go, what the fix is, and the manufacturer gets the bashing.
I still think a blower is a high maintenance motor, but you get big power when it works, and you get big bills when it brakes.
I can't believe the rods. What a lousy machine shop that would do hat. I've only seen that one other time. I used Eagle rods with very good luck. I always got the L19 rod bolts.
Good Luck
I figure the efi if tuned right should be a dependable package . Mark At Precision Marine in La has stepped up on programing the ecms and I am going to let him dyno them also. He has done some similarr set ups like this ,so it should be a simple tune up for him. he also recamended putting the bung in the headers for the afr meter so if we need to tune the motor in the boat afterwards it will be convenient. He is close to me so so I should be good.
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`sutphen30 I am planing on running a fuel return back to the tank. On my Blown Scarab it had a #10 return on it.keep a steady 7 1/2 psi even at 11lbs of boost
lou no mater what there going on the dyno.
tomcat yea I know about the prochargers on the m3's trying to mount the innercooler,they say mount it on the stringer,its prob has about 7 foot of tubing
.The 3.3 stage 3 whipple has a 1 inch taller innercooler and it comes with 65lbs injectors.I did not know about the fuel was going in there
I guess thats why they where able to but the innercooler below the blower.You would think the rear 7&8 would be rich???
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12-04-2004, 12:54 AM
#99
Rob
VIP MemberThread Starter
Re: Hustler 500efi engine tear down & Build Up
Originally Posted by Fountainclimber
Linster,
These are the stock rods from a 500EFI which is why I asked if Stip Pokers were also stock.
Bolts say ARP 8740.
They were pressed fit pins. The machine shop said that it was more cost effective to buy new Eagle rods than have these converted to floating pins. Plus I wanted to get the boat in the water asap.
F
These are the stock rods from a 500EFI which is why I asked if Stip Pokers were also stock.
Bolts say ARP 8740.
They were pressed fit pins. The machine shop said that it was more cost effective to buy new Eagle rods than have these converted to floating pins. Plus I wanted to get the boat in the water asap.
F
Did they rebalance the motor?
f311fr1 yea most people dont go for the extra keyway and the ati dampener.Thanks for the Info .I have never used the import rods before ,the claim there at least better than the dimple rod . I have a buddy thats a WD with Crower and have always ran the billet stuff in the drag cars.They say the Eagle hold up but be sure the ck the sizes!!
Thanks to you guys for all the Imput
Rob
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The Only Time You Have To Much Ammo Is When Your Swimming Or On Fire.
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12-04-2004, 06:52 AM
#100
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Re: Hustler 500efi engine tear down & Build Up
Strip Poker,
The machine shop did rebalance the rotating assembly. After I had the engine back in the boat, he told me the dampner was now the weakest link. Oh well, something has to be last on the list.
Good luck on your project.
The machine shop did rebalance the rotating assembly. After I had the engine back in the boat, he told me the dampner was now the weakest link. Oh well, something has to be last on the list.
Good luck on your project.
