Dyno sheets and discussion for UK Rotaries!

[banned advertiser]

Must be well chuffed John, god makes me miss my FD more.

[BlitzBoy]

Oh my god Just had the drive of my life home from REworx 128miles in 95mins which included the M25 from the A3 round to the A13 car still not fully mapped but lets just say for the moment ........... 401ATW @ .85bar   need to do a few more adjustments to be able to run the desired 1.2bar turbo is now spooling up to full boost from approx 5k with VERY good numbers from 3.5k peek power is dead on 8k, now thats an engine
Will post up final graph as soon as the mapping is compleate.

Looking good John!!! When you getting the final mappimg done?

[iaint]

Nice one John... now you just need to get the engine revving to 10k and it\'ll be serious

[antnicuk]

sounds good john,   so whats changed....  come on spill it........... please

[John Yorke]

sounds good john,   so whats changed....  come on spill it........... please

Wellll My old turbo made lots of power, but I could read war and peace waiting for the spool, pretty good for the strip not so good for track / fast street. So, it was a case of getting the ol girl to wake up a bit sooner and get enough air to pass through the compressor, after 2 attempts I think we are just about there. Basicly it now has a different compressor wheel [blade angle] and a smaller exhaust housing, dont think I should be putting out the sizes just yet as this was after some exhaustive testing and I would have to kill you once I had told you Biggest problem I have now is to get a better flowing backbox I think this is where my restriction is, so it will be down to trying a few out to get A] a good flow and B] be quiet enough so I dont have to wear cans whilst driving it, the power stearing mod seems to add about 10+bhp..........cheap mod that :2Confused
Oh and it red lines @ 9k, worth all effort that went into the build.

[ArmyOfOne]

Well here is what my all motor bridge can do. This was in USA before I moved to Germany in October.

Series 4 6 port engine
Holley 600
RB 6 port intake
Home made long primary header OPEN HEADER (extractor)
Full Brige Port
Half tank of regular pump gas
9.5:1 rotors

[BlitzBoy]

good figures for an NA, but I guess the 225BHP is at the flywheel and not at the wheels, can you confirm?

[ArmyOfOne]

Wrong. That is at the wheels. I\'m proud of that. Next one I am shooting for 290.

[20B_boy]

Nice numbers. Fair to say Dynojets are more generous than some other dynos tho.

[ArmyOfOne]

Well actually the numbers come pretty close. The car weighed in @ 2350 lbs and it ran a 13.04 @ 106mph on street tires. With a couple of calculators I came up with similar HP numbers.

[20B_boy]

2350lbs - whts it in out of interest? thats not much over 1050kg\'s...you have a nice old rotor?

[bnaellis]

Well here is what my all motor bridge can do. This was in USA before I moved to Germany in October.

Series 4 6 port engine
Holley 600
RB 6 port intake
Home made long primary header OPEN HEADER (extractor)
Full Brige Port
Half tank of regular pump gas
9.5:1 rotors

good stuff mate. do you have nay pics of the car with engine bay?
did you do all the work yourself?

[JamesFD3]

Can I be added to the chart Pip recently tuned the newly rebuilt engine at WGT,it was a tough decision whether to go single or stick with the twins as I love the response of the twins.Decided to go single with an HKS to4e,not the latest and greatest I know but it\'s a super little blower with good responce and great torque,just what I was after.

Anyway was really pleased with 340bhp@hubs on the new fast road ported engine.That figure was achieved with 0.8bar.

[BlitzBoy]

anymore to be added?? next update will be next Tuesday

[kev-yorks]

There\'l be a few more after the Thor dyno day end of april for sure hoping to see a decent rise myself.
Kevin