If it's 380bhp on Jabbas rollers then i have dyno's of 363bhp on my vf34/p20 and i believe songmans has dynos at 370/380. Personally for me it would have to be a td06 20g or bigger to warrant a change.
I think bill's old motor was suffering a bit with the comparison graph also largeport and 1.9 will make 20bhp top end i would have thought.
I think bill's old motor was suffering a bit with the comparison graph also largeport and 1.9 will make 20bhp top end i would have thought.
Its not about a peak gain but 30-40bhp would be nice. What power are you making at 7800rpm with the vf34/p20.
Songmans graph i reckon by 7800rpm its looking like 300bhp@ the fly. The hope for the new turbo is 340-350bhp @ 7500rpm. And greater sustained torque.
http://putfile.com/pic.php?pic=1/115224990.jpg&s=x11
http://putfile.com/pic.php?pic=1/115224990.jpg&s=x11
Will enough ever be available. Not sure on cost Elton will let me know in the next few days. Driveability is the key. I trust John Banks opinion to much lag would only turn the car into a pig, it still is a road car for me not a track car.
and Songman's also had rods, could run higher boost as a cosequence, (dont know if it does, but torque comes from somewhere) and maybe not insignificantly a Dahlback inlet manifold also.
not a 100% comparison of specs.
my old motor did suffer blowby, judging by oil breather huffing and a puffing - lol - 340bhp I think just before it was retired for the new 1900 motor.
I have no other Dyno info than that which Jabba did when they worked on my car - sorry I can`t be of more help
I`ve never felt the need to dyno the car again - my project was for road use, not track, strip or indeed the be king of the Dyno shootout - and as the car goes extremely well on the road
- i`ve got no complaints at allI`ve done 30000 road miles with the car since the work was done last December, and have encountered most of the sporting `competition` from rival car manufacturers with supposedly standard power outputs of 350/400 BHP - and no doubt Jabba`s 370 BHP has proved somewhat more `muscular`
than the opposition`s, when called to account.As far as dyno charts and power figures go, the car most definitely has freed up with the miles since the rebuild and feels now that it has more power than it had when Michael had it on the dyno
I have had problems - the first turbo`s bearings failed at 17000 miles - due to my fitting a `faulty `DV valve
say no more!!! - I`ve done 13000 miles on the latest one without incident, so the jurys still out!I certainly have never had problems with either manifold or exhaust housing - the highest EGT i`ve seen is 875degC downstream of the turbo
I am without doubt running right on the limit of the VF34/20, and thus I only use the extremes of the car`s potential as an occasional `overboost` facility - I normally control the maximum boost at 1.6 bar by setting back the boost control
I checked last night the boost figures on the road at max and with inlet temps around 15dec C the car gave 1.82 bar at 4000 - 1.54bar at 6000 - 1.44 bar at 7000 - and I think about 1.34 bar at 7500 - the run being done n 4th gear
In practical terms the car will just hold traction and no more on a dry road at 4000 rpm in 4th even with a diff and sticky rubber fitted
In general performance terms, it will do 80-100mph in 4th in 2.4seconds - it will run off the clock in under a mile from a standing start and will show an easy 160mph without effort on the GPS at about 6500rpm in 6th - it still pulls very well past that. The most i`ve seen is 169mph on the GPS at around 7000rpm
I`ve no doubt that the new turbos will be even better results than mine, but, in truth an extra 20 bhp means little to me[about 3mph at the to end] so I will take a lot of convincing to change for change sake
The car has been a huge success as far as 1`m concerned - it`s the fastest general purpose vehicle i`ve ever owned - so well done Jabba
The icing on the cake is that I get all this performance and 28mpg into the bargin
yep songmans boost figures are indentical to mine! thought jabba never allowed their cars to boost above 1.6 bar when they mapped them?. anyway i have no problems to report of(that's done it lol)to date so i'm happy
yep songmans boost figures are indentical to mine! thought jabba never allowed their cars to boost above 1.6 bar when they mapped them?. anyway i have no problems to report of(that's done it lol)to date so i'm happy
It`s just that your car goes a lot quicker down the strip
- guess I get `nil poins` for driving ability
Yes indeed! - sitting behind motorway traffic at a `part throttle` cruise on 3000rpm in 6th[73mph] - seeing the road clear, and swiftly depressing the right foot fully to the floor - ah yes ! - `tis one of motoring`s great experiences - eyewatering stuff -torque steer in 6th
blimey!
1.8bar....
(says he who has run 2.2bar on the PE1820 )
The LCR has a nicer ecu with extra fueling and EGT inputs which must definately help when pushing hard, whilst trying to combat EGT's.
Rag it on track for 30 mins several times a day for a few years and the weakness's will become apparent.
As I said before, now confirmed by your boost posting, torque comes from somewhere. Nice to have tho is'nt it.
now to find some traction..
1.8bar....
(says he who has run 2.2bar on the PE1820
)The LCR has a nicer ecu with extra fueling and EGT inputs which must definately help when pushing hard, whilst trying to combat EGT's.
Rag it on track for 30 mins several times a day for a few years and the weakness's will become apparent.
As I said before, now confirmed by your boost posting, torque comes from somewhere.
Nice to have tho is'nt it.now to find some traction..
another interesting discussion and potential option. 
http://forums.nasioc.com/forums/showthread.php?t=1066413
http://forums.nasioc.com/forums/showthread.php?t=1066413
Heard of most of those, and not heard anything bad associated with them.
I see occasional Eurospec snipes at rod quality, which is bad news for me cos thats what I am running..
Some great deals on Scat rods in 144mm-20mm pins on vortex. Aircooled boys have been using them for their mad drag race stuff for years.
There is a snag on choosing the right size/spec unit to go with your other hardware, manifold, DP etc, which limits whats possible. One of the reasons I have moved to a no compromise manifold and DP setup, to get the turbo I want on there. Its all money tho, to undo stuff you have already done, but to go further I think this is inevitable. (why compromise when you have so much ££ already sunk into the project is my personal feeling)
The Gruppe-S one looks interesting tho. Wondering if size/dimensions are going to be available, as their website does'nt mention the new unit yet. (not sure they are actually ready for shipping or anything yet either)
On a side note, mine drove round the block last night for 1st time (finally). Boost is'nt too bad considering its totally untuned yet... 10psi @ 3K and just over 4K its gone mad. (off gauge)
time will tell. - traction was optional in 3rd.
just got back from dropping it off at CC.
Its going to be a mad thing.
boost delivery is hard.
not revved it cos I am scared to until its mapped, but the few blats I had whilst trying to hold a modest boost is looking well fierce. Spool up is as good as hoped, not much different to the PE. Slightly behind it but by 4K its ripping big time.
new 8200rpm limiter requested and a lot of boost if it wants to take it.
Have logged 35psi so far on way up. not revved it beyond 6K to my knowledge (but it does all happen quite fast!)
looking forward to it all coming together on time for saturdays race.
everythings crossed hoping no glitches.
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