I just wanted to share some thoughts as ive driven the car a little more. The car is capable of of great speed. The manner in which it gets there is lacking to me a little. I think there are a few reasons for this which i will highlight. The first thing is the weight of the car.
4,000lbs is not conducive to exhilarating performance.
Next, the 6speed that is mated to the car.
The s85 makes its power up top, now pair a top end screamer with long gears and you have yourself a boring missle. Give her some space and a few seconds and youll be casually doing 140 with out even thinking about it. But getting to the 140 is a little lackluster. By the time you get the car into the powerband youre taking it right back down with the gears that are just too long. Leaving yourself in the next gear waiting to get that rush again. While thats great and all, it leads you into a 140 mile per hour pull and well you just cant be doing that everytime you want to show your friends/family what your m5 is about. This leads to me the e39. A torquey grunter. Loads of bottom end tq. This makes for fun pulls without having to get yourself into license suspending speeds to put a smile on your face. The e39 has nearly the same tq and weight as the e60 yet feels way more alive. Now my goals for this car were for it to be an elegant and luxurious straight line machine. Nick told me i should just buy a newer m5/6 with the s63. While easy to make power straight out of the box and achieve my goals, i think the s85 chassis car is a diamond in the rough.
The slick top and exhaust should shed atleast 150-175 lb. I may and try to remove some sound deadening and see where that takes me. I dont want to lose too much refinement though. Pair that with full bolt ons which would hopefully bring me to a healthy 600bhp. The only thing that i am unsure of is the gearing. Im not sure how i will address this yet. Im hoping that the bolt ons (higher redline) and weight loss will fix this. It will with out a doubt help it but im not sure if it would satisfy me and my goals. I think gearing will be my last resort and perfecting the car.
Im looking into maybe a e9x m3 6speed swap. I could change the final drive but idk. Im not sold on shorter diffs yet.
I loved my s62, but I always felt like I ran out of revs, and found myself bumping the rev limiter all the time — especially when I drove them back to back on the same days. Driving my s85 really reminds me of driving my s38 or any air-cooled Porsche.
Drive an s62 like an s85, and you will feel like it lacks top end. Drive an s85 like s62 or s63, and you will be disappointed.
For the s85:
Look at a custom diff with more aggressive ramp angles.
Loose weight at the corners for unsprung mass, with wheels and brakes.
Find a SSK, instead of rowing a boat with each shift.
Find some larger throttle bodies.
Find better airflow.
Upgrade your clutch and flywheel.
Or look at the mods in my signature!
///M The ///Most Expensive Letter in the Alphabet
Driving Concepts Competition Racing School
s85 + (afterthought) 6mt =158,000 miles with no RCOD and counting ...just saying...
2007 Dinan S2 e60 m5 6MT Interlagos Blue
; DINAN 3.91 Exploded @8x,xxx
; Performance Gearing 3.91 LSD 3 clutch, 30/50 ramps, R&P polished
; ClutchMasters FX350 clutch and LTW single mass FW @157,000 miles, RPi Oil Cooler/Scoops; DINAN High Flow Air Mass Meter/Intake, DINAN TBs, DINAN pulley, DINAN strut, DINAN Monoballs, FastAttack Tune, w/Kung Fu grip!
, Einhorn Industries Race Jedders, track pipe, and x-pipe;
DINAN Section 3, DINAN LTW 19x9 ET18, 19x10 ET25, Michelin PS4S 275/35/19 and 305/30/19, Macht Schnell 15mm spacers (front); FERODO FRP3000H race pads; StopTech BBK 6/4 380mm/35mm x 380mm/32mm w/SS lines; RDSport F/R sways; CKS coils w/swift springs, -2.0/-2.5 F/R camber; z3 1.9L SSK, with f10 shifter; F/R G1W-H; Uniden R1, remote ALP 2Rx:1Tx, F/R NetRadar DSP, w/GPS and BT. SprintBooster v3; Euro MDM and DSC off. Fluids: Motul 7100 4T 10w60, Redline ShockProof Lightweight 75w140, Castrol SRF, Unicorn Jizz and Wolfpack Blood; Rod bearings replaced at 84,000 and 150,000 miles!!!
1988 e28 m5 STROKER 420bhp 91 octane(Paul Burke s38b39)
; VAC LTW flywheel; MegaSquirt G2 DME; Euro RestoMod track car: caged, 6 point FIA harness, FIA Sabelt GT-160 seats...AC/heater, interior, sunroof, rear seat delete; Euro Headers, dump valve, and race cats; CAE Ultra shifter; custom Ground Control Coilovers/camber plates; Mason Engineering front/rear strut bars; Brembo 6/4 BBK; 17x8 BBS RK w/Dunlop StarSpec II; undergoing Euro restoration, building the e28 CSL ///Motorsport never built. 5.71lbs/hp
1996 FZJ 80
; LOCKED; Factory TRD Supercharger; Expo/Overland/Backcountry Rig; custom sleeper/drawer system, full rock armor, 33"s on 2.5" OME Heavy Lift; Rigid LEDs F/R; 231,000 miles and counting.
2008 Audi A3 S-Line Quattro w/flappy paddles
(Mammoth Mountain Commuter)
2000 e39 m5 TiAg (Gone, but not forgotten) sold 7/2014.
The Indys that I trust for all my Beasts' needs: oceansidemotorsports.com my local physician for service
fastattackmotorsports.com because JColley!
einhornindustires because WolfPack!
~Viva La Wolfpack!
Last edited by Fiftytwoeighty; 30th March 2019 at 06:26 AM.