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Old 01-27-2011, 12:02 PM   #1 (permalink)
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Question Wildcat 700 EFI any EFI remapping? Best Mods?

Hi all just wondering if a f-7 can put down 160hp with some leaning down im fully aware these arent the same motor, but could i get anything near this without turning a obnoxious amount of rpm's.

The setup is 93 Wildcat EFI 700. rebuilt primary and secondary with less than 1k put on ready to take a beating. Driveshaft bearing looks good zero play. Im into this sled relativly cheap minus back pain of turning it around in my garage during testing phase.... my back is toast now draggin this beast in cirlces. I need a drive through garage bad.

So i will be putting a ZL skid under this for sure. Wondering what the most firendly way to get power out of this motor is. Porting? Big bore kit. I see weiseco has a 790 kit for pretty cheap. Are pipes good for this motor? ive seen PSI and black magic have some. Anyone have any they want to sell? PM me.

Anyone have any luck with Tuning the Efi system on these. Can it be done?

This isnt my everyday sled so not worried about reliability at all. Id like it to hold off my buddies vmax-4 as long as possible. I walk away from him until about 75 and he starts catching me. Not sure if i can ever hold that thing off. That vmax is a beast....
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Old 01-27-2011, 02:01 PM   #2 (permalink)
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The pipes it has are the best for it.
There is currently not a remap for the ECU, but the variable fuel pressure regulater that Kckats has would help.
Clutching for higher rpm engagement can help too.
Put plastic skis on to reduce friction and weight at the front too.
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Old 01-27-2011, 02:17 PM   #3 (permalink)
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Wink

Sweet thanks Rj thats what i heard. Im new to tuning let alone EFI mapping but you have to start somewhere. Someone has to try something...what would the advantage of inreased pressure do or its more constant.

I do like the stock sound alot but i bet that silencer box is heavy? I heard stingers are okay but nothing that affects backpressure? I dont want something useless. If it takes off weight im cool with it being louder.

Ill see what top end rpms i am turning and get back with you for clutching. Wasnt really staring at the tach the last few rides during WOT i was clipping.

I do have a pair of plastics off my pops 08 rev800R and i just for fun i kinda visually measured the spindles and they are darn close to the same width. I think im going to attempt that tonight. Would be sweet if they fit. Ill post a pic.

Also everyone may flame me for this but this thing does skip water... for real. it doesnt love the idea but where i live you really dont have a choice the middle of the river is pretty much wide open all year.

Did it on our low milage one it ran like a good 250 feet of water no prob with a 3/4 track worn down. Im a little dude though. Just letting it be known This cat can and does skip water... even at 700 pounds or whatever it is. Also i didnt hit this waterhole at speed. It took it from a 20 mph roll and accelerated on water. This sled has mad balls. Ill get a vid next time it was kind of a accident i lined up on the wrong spot and had no choice but to hammer down.

Thanks again RJ for helping getting this beast rolling. TSS was bypassed incorrectly by previous owner among others. that was the major one.
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Old 01-27-2011, 02:40 PM   #4 (permalink)
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Keeping the rail pressure constant is more important. Keeping it at spec (36.2psi) will improve performance the most.

Any other changes (clutching in particular) can help.
Stock engagement on this is 3800 and peak is 8200.
Mine engages at 3400 (comet pro 4 with 4-54gr weights and yellow spring).
If you want to drag race, then a higher engagement is called for. You want at least 5500 (not very trail friendly though) and change helix to a 56 from the 52 that it has.
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'93 Wildcat 700EFI
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'90 Wildcat Project in progress.

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1980 Indy Trail 440 (for sale)
1980 AC Pantera (donor engine to the 90 wildcat)


http://www.dcdrifters.net/


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Old 01-27-2011, 03:19 PM   #5 (permalink)
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Thanks RJ im going to watch my clutching tonight see what happens. Its currently Red spring with 54g's . Yellow/green secondary.

Yeah im not looking to turn the screws to it all the time really just on the occassion this is like my river runner/top end sled.

My parents house is on a local river so we store alot of sleds there throughout the winter for people. I drove this Mint wildcat (family firends) we have one day and i really had to have one. They are so bad ass for their time. I would love to see anyone line up with this year for year.

Buddies got a setup xcr600 which he thinks is god and we were dead even from a roll all the way up he cried a little... I actually walked away from a 00 zrt600 badly from 0-40, he caught up and than its was pretty close after that. Its very impressive to me for 1993 really.

Takes the vmax-4 750 (slp ultr light skis and stinger) takes him until 80ish. across our lake all day. I pulled a good 2 sleds on the start.

Do these races sound appropriate? this seems about right im next to lighter newer 600's. Just making sure its healthy.

Compression is good like 125 dead cold on both but never tested it warm. Plugs looked fantastic when i pulled them last night. Like a chocolate tan. Never seen plugs that color before it looks good, it was just very intense tan color.

Wildcat is def a sleeper and im a big fan of that.
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Old 01-27-2011, 03:30 PM   #6 (permalink)
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Plug color is perfect, mine pulls 140psi (cold and 135 warm) and has never been apart.
I have Gps clocked mine at 110mph sustained speed on hard pack.
The Pro-4 clutch allows me to use a lower engagement and still pull that top end, damn thing pulls like a tractor all the way up too.
A friend of mine has a 96 ZeRT (the most powerful of the 600 triples) that is modded quite a bit and he still can not beat me at the drags which irks him no end.
With my set up, it will pull the skis all the way from light to finish line.
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'93 Wildcat 700EFI
w/ Comet 108 Pro-4 clutch & 01 ZR skid

'90 Wildcat Project in progress.

Vintage (sorta)
1980 Indy Trail 440 (for sale)
1980 AC Pantera (donor engine to the 90 wildcat)


http://www.dcdrifters.net/


Worshipful Master; F&AM Dryden Lodge# 472
http://www.masonicdryden472.org/

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Old 01-27-2011, 03:39 PM   #7 (permalink)
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Awesome sounds good. yeah thinking the skid will make a major difference in the way it transfers the power.

I will say this i 125 was with the throttle not opened because it was like a quick prelim just to see whats what. the gauge was still climing around 125 i just stopped at 3 pulls. Tonight i will do it properly and see if there is a difference. dont know if i could have gotten a better number faster with the throttle Wide open

Yeah my buddy had a 96 zrt and we couldnt fiqure out why the thing was so snappy until after the power ripped the chassis in half.lol.

Yeah we didnt get why the 96 would pull on the 00? after further research i now understand. Good, performance is up to spec for me at least for now. i dont plan on opening it up unless it acts up. cooling system seems to be okay no leaks anywhere and i can touch the motor after hard running for 30 min so she seems to be okay thus far. Thanks again for all the help RJ.
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Old 01-28-2011, 03:22 PM   #8 (permalink)
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Here's a view of mine with the original skid in it.


You can get better torque transfer by moving the lower link (rear arm) to the front hole.
This will improve the ride and also allow better hook up without a lot of track spin,
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Old Cat Rider
'93 Wildcat 700EFI
w/ Comet 108 Pro-4 clutch & 01 ZR skid

'90 Wildcat Project in progress.

Vintage (sorta)
1980 Indy Trail 440 (for sale)
1980 AC Pantera (donor engine to the 90 wildcat)


http://www.dcdrifters.net/


Worshipful Master; F&AM Dryden Lodge# 472
http://www.masonicdryden472.org/

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Old 01-28-2011, 04:20 PM   #9 (permalink)
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RJ- I just noticed you are from NY. I cannot believe how many sleds are for sale from there and cheap!
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