im definately going to sso.. just weighing up the options as to run or not...

 

Weighing up the options!!!

Well done, good times, now

Get yer names down you bunch of..........

 

lol!!!

i dont wanna put my name down if my car aint gonna be done in time.. still waiting on my i/c...

 

Here are pics of the graphs:

http://i2.photobucket.com/albums/y4/..._Graph_294.jpg
http://i2.photobucket.com/albums/y4/..._Graph_352.jpg

Shows the curves but thats about it.

Will try and get them scanned at a later date.

Bob

 

Hopefully these are a better resolution:

http://i2.photobucket.com/albums/y4/SCOOBY_BOB/BHP.jpg

http://i2.photobucket.com/albums/y4/...BOB/Torque.jpg

Bob

 

Looking at the Torque graph I was wondering whether the torque is a little on the low side? Ignoring the peak @6000rpm, max torque seems to be around 280.

Bob

 

Bob

I would take those RR results with a pinch of salt !! Even although I mapped it and may be shooting myself in the foot by saying the power graph looks wrong

There is no way your cars peak torque is up at 6000rpm, that spike is where the slipping rollers eventually caught up with the cars wheels !!

Andy

 

Cheers Andy. A good reason to put myself down for the next RR.

I did question the operator as to the spike, but he said it looked ok (probably didnt want to run the car again).

Bob

 

Just to keep the thread updated.

Car popped into WRC Tech today for diagnostics and power run. Produced 340/340 on the RR.



Bob

 

Good power/torque and certainly more readable than the last plots

The torque plot suggests it's a little laggy, probably 1 bar after 3500rpm? But when it's there, it does the business

If I change my Subaru centre and BB for a 3" and add headers instead of ported, then I could possibly get 340 from 333? What I wouldn't like though is a possible slower spool trade off especially as I've driven an early spooling 2.5 and I now know what I'm missing

F

 

Good performing tubular with a 3" system may add as much as 15 bhp or slightly more but typically the spool will move 350 rpm up the band.

 

Looks good to me, the car makes 1 bar at about 3300rpm in 4th from memory

 

Congrats, very very nice power output, actually the HP plot looks impressive ..... it keeps pulling upto ~ 6500 rpm (nice for a stock UK engine). Also I think that on the road the boost probably comes "earlier", but the headers increase the spool time. Don't go crazy with peak boost as it will increase the peak torque and also potentially damage your gearbox.

Carlos.

 

dont think he will break his new box
bob, good luck for avon park this sunday, hopefully you will get a 11's run.

 

Carlos, Bob now has a PPG box

 

Cheers guys.

From looking at the graph - in 3rd gear it made 1bar @3475rpm. Full boost by 3700RPM, held until 4700RPM. Tails off to 1.2bar @ 5750RPM and 1.05bar@ 6800RPM

4th gear on the road it makes boost a little earlier.

I think the 340lb/ft torque is a little more representative than the run at PTS which indicated only 294 and probably why the box didnt hold out for too long.

It should probably be noted that the 'real' figures are probably lower as I was running 10% methanol (unmapped) which is in there for the weekend drag in an attempt to save a 10th of a second off my time. Previous RR run along with all my drag runs were on my normal fuel.

Bob

 

if that is the case then aim for 1,7bar peak boost and try a stronger WG actuator .

Carlos.

 

Will a TD05 20g actually boost 1.7 bar?
Interesting that the 'boost curve' on Bob's engine is similar to mine.
I pre-loaded my waste gate by spacing the actuator back 5 mm, effectivly shortening the rod by same.

Good luck Bob, but I think it may be a wet one

Graham.

 

Cost of a PPG box?.......onder2:

Doug.

 

Graham (u have a PM ), my guess is that a TD05 20g "should" be able to hold 1,4 bar at redline.

 

Have pm'd you back. Great thread!

I wonder if I have a leak in the up/pipe and that would allow the boost to fall away?
Last race tomorrow and then stripping down in Nov after some careful thinking...
Graham.

 

Does anyone know how much boost/power the 2.5 can take/make within safe limits? Is it worth uprating pistons+rods if the car is going to be 400-450bhp and driven hard? Not wanting to go down the 2.2/2.33 route due to the cost but im aware of people saying that high output 2.5's are prone to failure...

Doug.

 

Doug, see John Banks project...

Why would you want 450 to not drive it hard?

F

 

If you have a stock 5 speeder...
Beats me too!
Graham.

 

Eh? To not drive it hard??? I mean its not being used as a road car and will only see hills and the odd blast along the back roads.

Type r box to be replaced with s/c but not till next summer due to funds going elsewhere.

Im now confused...

 

Andy mentioned that increasing boost beyond a certain point would be non-beneficial. Also 1.5bar with headers must be similar to 1.7bar without?

 

Doug: Not sure on exact figure as mine is PAR/PPG combo. Expect £2500+


Bob

 

£2500 I hope your flexible friend is still your friend

Bob, your profile says standard UK engine! You must mean short block only

F

 

[QUOTE=Floyd]£2500 I hope your flexible friend is still your friend

Lol! My flexible friend is being used to fork out my excess for getting the car put straight! Think i'll need a few "friends" for a new box!

 

another FE TD05 16g goes < 12s .....

superb