FK87 Experiences ?

55slug · 2008-08-20T06:54:03+00:00

I am going to be running one in the 2442 Im building. I was planning on running 10.5:1 compression. Just interested to hear of any combos anyone has run and their take on this cam ? Ive read that it likes compression, but how much ? trying to keep it semi streetable. Combo is 88 x 94, 044 wedgeports 46 x 37, IDAs and 1 3/4 exhaust. FK87.

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 7 Sep 2009, 9:37 pm

#734035

Man I dont believe it.....why was that post deleted....WTF

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion

8,040 posts · joined Jan 2003 · 7 Sep 2009, 9:58 pm

#734043

what post ?? They are all there !

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 7 Sep 2009, 10:24 pm

#734052

There was one above mine with the arrows that was tongue in cheek bag against Col by Brisdubba. Next thing 'they' deleted it. Again ....WTF

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

BrisDubba Fahrvergnugen

877 posts · joined Oct 2005 · 7 Sep 2009, 10:33 pm

#734055

Matt,

I deleted my own post thinking that I didnt want to hijack it or send it off track, just having a joke with Col that is all. I actually thought you were suggesting to me that I should delete it, for that reason.

So this time at least it was an innocent deletion.

Cheers

Peter

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matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 7 Sep 2009, 10:37 pm

#734059

Wow dude what's going on.....LOOKOUT.....they're at the window.....ah no....only my reflection....thought it was them tooo.

I'd never suggest to delete a dig at Crazy Col....would I??

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

55slug Seriously Crusin Dubber

169 posts · joined Jul 2006 · 8 Sep 2009, 11:02 am

#734123

Crikey its taken me a while... engine is nearly there, looking forward to driving it soon....

Hoping to run some 12s this season...

55slug Seriously Crusin Dubber

169 posts · joined Jul 2006 · 27 Oct 2009, 12:25 pm

#743541

After first start jitters, and stripping it down again, a week later its all up and running really well. Drags next Friday down here at Meremere weather permitting... fingers crossed for 12s.

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 27 Oct 2009, 12:28 pm

#743542

Cool mate. Well done, good luck on the track.

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

grogy Custom Title Time!

1,000 posts · joined Aug 2007 · 28 Oct 2009, 3:48 pm

#743745

hi, how about a time guestimate comp, i say 12.9 1st run and into mid12s if tyres stick ok.

coletrickle Wolfsburg Wizard

661 posts · joined Apr 2009 · 28 Oct 2009, 7:51 pm

#743792

13.20 but i don't know about car set up and tires radials?drag radials? or slicks?

55slug Seriously Crusin Dubber

169 posts · joined Jul 2006 · 28 Oct 2009, 8:11 pm

#743798

M and H Dots, quaiffe... ill be very happy with a 12 of any sort... lets not forget my tuning ability will play a big part, spending the weekend with the wideband,,, hope im good !!

grogy Custom Title Time!

1,000 posts · joined Aug 2007 · 28 Oct 2009, 8:39 pm

#743805

wow, if tracks good, it should launch hard..

fish26 Fahrvergnugen

903 posts · joined Jul 2007 · 29 Oct 2009, 1:49 pm

#743907

first run out......13.8, with seat time thats a lethal combo, did you mod the carbs for friendlier street use?

bitten by the bug..........several times

OLD-DOG Casual Dubber

25 posts · joined Oct 2009 · 29 Oct 2009, 2:28 pm

#743914

Fish 26...The purpose of these straps on my rig is to limit body rise at speed-200ks & upwards.They mimimise
bump steer tendencies as they reduce tie rod angle changes.One has to be careful on the set up
that you don't rob the vehicle of suspension absorbancy.Its like every modification full of some sort of compromise..Ross.

fish26 Fahrvergnugen

903 posts · joined Jul 2007 · 29 Oct 2009, 2:59 pm

#743918

OLD-DOG wrote:Fish 26...The purpose of these straps on my rig is to limit body rise at speed-200ks & upwards.They mimimise
bump steer tendencies as they reduce tie rod angle changes.One has to be careful on the set up
that you don't rob the vehicle of suspension absorbancy.Its like every modification full of some sort of compromise..Ross.

Hey Ross, I think you posted in the wrong thread mate. Thats why I said they should only be used on faster cars, stabilizing the front end.

bitten by the bug..........several times

grogy Custom Title Time!

1,000 posts · joined Aug 2007 · 29 Oct 2009, 4:06 pm

#743935

am i an optimist with my 12.9? i hope the ida vents are real big with jets to suit the top end. from past experience with similar setups in both my friends super and my manx, 12s should not be too hard especially since its big cc. all i say is go slug55 its gonna be one fun bug

55slug Seriously Crusin Dubber

169 posts · joined Jul 2006 · 29 Oct 2009, 4:53 pm

#743944

fish26 wrote:first run out......13.8, with seat time thats a lethal combo, did you mod the carbs for friendlier street use?

I was running 13.7 s on radials (1.9 60 fts) with the old 2276, full interior, with a 5 speed, missing third gear pretty badly. Carbs are two hole progression, not modded 1.21 4th ( 5 speed now a 4) so it wont see much street action...
Heads are 46 x 37 ultra wedgeports...
Car is reasonably well set up... like you say down to launching it well and getting it down the track...

fish26 Fahrvergnugen

903 posts · joined Jul 2007 · 29 Oct 2009, 5:17 pm

#743947

its gonna be a hairy, scary ride mate, enjoy.

bitten by the bug..........several times

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 29 Oct 2009, 7:36 pm

#743998

If you get the tune sorted, I think you should have no trouble getting into the 12.9s
hang on ...11.9s.

westi wrote:That's mad Alan.

55slug Seriously Crusin Dubber

169 posts · joined Jul 2006 · 30 Oct 2009, 6:37 am

#744080

Yep the tune.... I have 42 and 44mm vents, running 42s at this stage F7, 65 idle, 120idle holders, 175 main,190 airs. Will work it from there... After the Friday meet next week, there is a T and T the week after on the Sunday... see how I go, and what I break.

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 30 Oct 2009, 8:36 am

#744097

55slug wrote:... see how I go, and what I break.

Ahh....spoken like a true racer.👍

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

grogy Custom Title Time!

1,000 posts · joined Aug 2007 · 30 Oct 2009, 3:21 pm

#744137

i think i used to run 44 vents 195 mains 220 airs ........
but i think i ran f11 emulsion and 55 idles on 2180 same cam slightly smaller heads n intake valve, but 11-1 comp. hopefully weather will be good for u

55slug Seriously Crusin Dubber

169 posts · joined Jul 2006 · 7 Nov 2009, 6:25 am

#745765

12.872@166 ks.1.85 60 ft, made it to the C3 (NA 4,6 and rotors) final and got beaten by a rotor... Im pretty stoked, and theres lots more in it yet !!
vid of the 12.90 run... http://www.youtube.com/watch?v=_uhXMB7oxf4 sounds pretty rough at the top of third, more tunuing required !!!
Launching at 3800. Have a fair amount of suspension work to do to get out of the hole faster, and it was a bit loose at the top end on some runs.

vassy66T1 Wow ... are U reading this?

2,120 posts · joined Jun 2003 · 7 Nov 2009, 8:08 am

#745778

Nice one 👍
Healthy amount of wheelspin off the line

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 7 Nov 2009, 11:41 am

#745832

55slug wrote:12.872@166 ks.1.85 60 ft, made it to the C3 (NA 4,6 and rotors) final and got beaten by a rotor... Im pretty stoked, and theres lots more in it yet !!
vid of the 12.90 run... http://www.youtube.com/watch?v=_uhXMB7oxf4 sounds pretty rough at the top of third, more tunuing required !!!
Launching at 3800. Have a fair amount of suspension work to do to get out of the hole faster, and it was a bit loose at the top end on some runs.

Awesome effort!

Be good to see how fast it is with correct mixtures,
andless spin off the starts.

Third gear sounds like it goes for ever!

westi wrote:That's mad Alan.

55slug Seriously Crusin Dubber

169 posts · joined Jul 2006 · 7 Nov 2009, 12:20 pm

#745838

Yeah, im changing into 4th maybe 100 feet from the line... not the best, Im pretty sure its a 1.48 3rd, 1.21 4th... 388 r and p

Im thinking some $$ on the dyno might be well spent

r/t in the final was .075 (vs. .233) - Im convinced its due to the time i put in with the kids on the playstation

grogy Custom Title Time!

1,000 posts · joined Aug 2007 · 7 Nov 2009, 12:54 pm

#745859

great stuff, good time first time out. agree wit dave too much wheel spin, [not sure how u do better without slicks] plus if u can launch higher revs off start without spinnin u should get 4th earlier

fish26 Fahrvergnugen

903 posts · joined Jul 2007 · 7 Nov 2009, 1:14 pm

#745868

55slug wrote:12.872@166 ks.1.85 60 ft, made it to the C3 (NA 4,6 and rotors) final and got beaten by a rotor... Im pretty stoked, and theres lots more in it yet !!
vid of the 12.90 run... http://www.youtube.com/watch?v=_uhXMB7oxf4 sounds pretty rough at the top of third, more tunuing required !!!
Launching at 3800. Have a fair amount of suspension work to do to get out of the hole faster, and it was a bit loose at the top end on some runs.

Great stuff mate, I was a full 1 sec off your time, square up the rear wheels @ launch and stiffen the front so it don't get loose, what suspension and box are you running now?

Once again, props; it takes a lot of work to run in the 12s.

PS. So what do you think of the FK87 and when does it come on in your combo?

bitten by the bug..........several times

vassy66T1 Wow ... are U reading this?

2,120 posts · joined Jun 2003 · 7 Nov 2009, 2:20 pm

#745886

The healthy part about the wheel spin is the gear box and axles will last for ages.

55slug Seriously Crusin Dubber

169 posts · joined Jul 2006 · 8 Nov 2009, 6:28 am

#746025

fish26 wrote:
55slug wrote:12.872@166 ks.1.85 60 ft, made it to the C3 (NA 4,6 and rotors) final and got beaten by a rotor... Im pretty stoked, and theres lots more in it yet !!
vid of the 12.90 run... http://www.youtube.com/watch?v=_uhXMB7oxf4 sounds pretty rough at the top of third, more tunuing required !!!
Launching at 3800. Have a fair amount of suspension work to do to get out of the hole faster, and it was a bit loose at the top end on some runs.

Great stuff mate, I was a full 1 sec off your time, square up the rear wheels @ launch and stiffen the front so it don't get loose, what suspension and box are you running now?

Once again, props; it takes a lot of work to run in the 12s.

PS. So what do you think of the FK87 and when does it come on in your combo?

Stock rear shocks, IRS, T2 CVs, Front end has dropped spindles and slightly narrowed. The dropped spindles are getting changed before the next outing (2 weeks).

I was running M and H dot legal slicks, couldnt get them to stick as well as I would like, running 18lbs air in them... It was pretty cold though, and those runs were close to midnight...