Engine Drivetrain 1st Gen Cooper S Most liked posts in thread: Sprintex - Where are we now with these?

Good to hear from you Glad it's all working great, what pulley are you using?

 

Still on the 70mm, I was waiting till the weather perminently shifts out of winter till I change pulleys.

But I'm not sure when yet because of all the other things I really want to have finished for MOTD.

One thing I have decided to do as a PM thing is with my new gauges, as we all know one of the biggest engine killers as far as everyday is overheating, so since my new volt gauge is P.O.L. (Point of Load) I'm going to connect it to my water pump power, (since it's now electric) after all of the fuses & connections, and since the gauge allows you to set a point for Low & High for an alarm feature that is built in, therefore I should have the earliest possible warning in case I loose power to the W/P.

 

Anything new Mark?

My SPRINTEX car is still broke, getting a ton of body prep, and hopefully paint this summer. Saving for a $12K motor build is hard when unemployed, maby it will be easyer now with a full time job.

 

While I'm in a posting mood, to date:
+20,000 miles on my Sprintex, 15,000 miles with the 70mm pulley, 5000 with the 64mm pulley, and 60mm pulley goes on in a week or so, still no problems what so ever.

For me, peak boost w/ the 64mm pulley is 18.5, continuous boost @ 17.7, this is why I've decided to go to the 60mm pulley, like usual, I want more.....

 

Please post up some dyno's, people are dying to see the differences in power between the pullies as no one has done that yet.

 

Good to hear Also heard they are on a little bit lower priced right now. One day I will do more with my car, runs great as it is, but our new hobby, road biking is sucking money away faster than when I was modding my car :eek6: :lol: Good thing though....I finally did the Carbon fiber thing....just not on my car....my bike!

 

I'll do that as soon as we're done & I get a pull with the 60mm, basiclly the tune with the 70mm wasn't as good as it could have been, so the differences between the 70mm & the 64mm are probably a little higher than what is normal, so once I'm all done I'll post up everything. So far though you can absolutely see the corelation between boost & power....of course.
At this point I'm seeing about 1.5whp per 0.10 lbs of boost, but there again that may be a little high because of the tune thing, we'll see.

A few people have asked me in general about the S/C as stricktly a performance upgrade, IMO it really depends on your skill level more than anything else, here's why:
(stricktly performance)
As far as "bang for your buck" it's basiclly even with doing a BVH, if you have to pay someone to do your head, if not a BVH is of course a better value.
But as far as if you have to do your S/C or you already have a BVH & the accompanying goodies it's the only way to go, the kits are a breeze and everything just works, the power band just makes the car more fun to drive and there's always the potential of swapping pulleys and getting even more than with the M45, overall I've gained between 1.4 & 1.8 lbs of boost going from the 70mm (it's really 69mm) to the 64mm, and hope to see just under that with the 60mm, which should put me real close to 19lbs, which would be either really hard to get or impossible with the M45 without creating far more heat issues than what I've seen so far with the Sprintex.
Personally I'll still never go back to an M45, no matter what I end up doing with the car.

 

Cool to hear, yes I already have the BVH and accompanying goodies

 

After finally adding a GPIC to my list of goodies I decided to go back and check some old datalogs as far as IAT's are concerned, found something that I thought was interesting:

My M45 with a JCW pulley and making 14.5 lbs of boost actually gave me an avg. of 7* higher IAT than the Sprintex with the 69mm pulley giving me 15.7 lbs of boost, and the 64mm pulley giving me 17.7 lbs of boost only gives me an avg of +6* over the M45 at 14.5 lbs of boost. Not bad IMO.

 

280.5 WHP

Yikes....
here are this guys list of mods...:

Engine and Drivetrain:
sprintex s5-210 running 60mm pulley
Jcw intake with flapectomy and ITG filter
GP Intercooler
Mynes V2 header
Thumper TPR2 .. now upgrading to TPR2R
Thumper matched intake
MM cam.. ( changed to 1320 Cat Cam)now installing adjustable cam gear by thumper..
Arp head studs
550cc injectors
ATI Superdamper
Sachs performance clutch kit
TSW Solid Upper Engine Mount..changing with vibratechnics from 1320
Bytetronik FullAccess Tuning kit
Quaife ATB Differential
Aquamist Hfs3 system running 50/50 water-meth

-new modification include:

JE custom pistons raising compression
connecting rods polished and weight matched, arp bolts used.
Crankshaft balanced till 8000rpm
Not to bad... or maybe just amazing?? Yes??

Just saying..........................

Thumper

 

Saw that on the other forum too, 280 on a Dynojet is F'n strong, that calculates out to be between 315-320 on a DynoPack.
No way I could even come close to that until after my rebuild, but at least I have a target when the time does come around.

And 209 ft/lb torque, that's gotta be fun to drive.

 

Thumper, You got one on your car now right? Hows it running?

 

LOL.. ME?? Hell no... I am with the m45 and oem injectors as of yet!!

Thumper

 

Why don't you get one?

 

well.... I am not ready yet. When I rebuild I will consider it. Seeing as I am at 280+ WHP with just a $250.00 NOS KIT... I will wait before I invest in $3000.00 PLUS in a new blower....

Just saying.......................

Thumper

 

REBUILD? What happened?

 

LOL read it again..... " when I rebuild" duh.. lol

 

Thumper, need to make a correction to your original post, they did that with the 64mm pulley, not the 60, Holy Crap, now I'm even more impressed.

 

What's interesting is Moving the Torque limiter on an R53 won't make a change in HP like that. Back in the day the twin charge guys were making 300 ft/lbs of tq on the stock ecu with AFC II that only controls air to fuel ratio. If a torque limiter really effected that it wouldn't have allowed those cars to reach those torque numbers. A change like that looks more like playing with the dyno then anything else. That said his original numbers of 250whp are pretty nice. I mean that's what guys with very built cars and M45's are making so it's no number to laugh at.
What's annoying is the dyno graphs don't include RPM or AFR's.
You can see on the original thread.
Dreammaker's Black Eye Purple R53 - The Projects - TrackMINI.com

 

LOL.. there it goes... 'messing with the dyno'..LOL Not the FA, LOL
You guys..... are all the same.

He posted on 3 different sites, they all are fine with the numbers and HOW he got them.
The Dyno they used in GREECE isnt one to move adjustments or calibrations on the dyno to get a bigger number. Seems they have integrity !! and are an honest lot!!

Just saying...................................

Thumper