What did you do in the garage yesterday?
Discussion
Thanks guys, I'm really pleased.
I've no idea how far the nap was out but it looked about right on the AFR gauge on the journey there.
this is it now, engine wise, no need for more power otherwise other components will start breaking!
strangely, I filled up before mapping, the car spent about 2 hours on the rollers and I still managed 200 miles before filling up! Can't be bad.
As you can imagine, acceleration from 80 is immensely fast and 120 comes up in just a few seconds.
Happy days.
I've no idea how far the nap was out but it looked about right on the AFR gauge on the journey there.
this is it now, engine wise, no need for more power otherwise other components will start breaking!
strangely, I filled up before mapping, the car spent about 2 hours on the rollers and I still managed 200 miles before filling up! Can't be bad.
As you can imagine, acceleration from 80 is immensely fast and 120 comes up in just a few seconds.
Happy days.
phazed said:
Traffic and more traffic at my end.
Well after spending the afternoon at Joolz for a mapping session after fitting the stage 4 heads and the roller rockers and meeting Spend for the first time!
The results are in;
That's 384.8 BHP/428 torques
Performance is noticeably 40 BHP and 30 torques faster.
It was worth it in the end!
thats quite a lot Well after spending the afternoon at Joolz for a mapping session after fitting the stage 4 heads and the roller rockers and meeting Spend for the first time!
The results are in;
That's 384.8 BHP/428 torques
Performance is noticeably 40 BHP and 30 torques faster.
It was worth it in the end!
playing with some speedsix cars should be fun 
phazed said:
It was always quicker from a standstill with the torque advantage but now it pulls more at the top end.
That wasn't even the best result, sure there was one 386.4ish..Did mean to remind you to check the oil level before leaving
ops:Leaks spotted were :
- dipstick
- n/s rocker cover
- front gasket seal (not sure if you have the right clamps on BTW they didn't look quite right somehow )
spend said:
phazed said:
It was always quicker from a standstill with the torque advantage but now it pulls more at the top end.
That wasn't even the best result, sure there was one 386.4ish..Did mean to remind you to check the oil level before leaving
ops:Leaks spotted were :
- dipstick
- n/s rocker cover
- front gasket seal (not sure if you have the right clamps on BTW they didn't look quite right somehow )
Joolz and I had a looksee afterwards.
Dipstick tube not fully pushed home.
Breathers too small diameter and taken to a Y piece doesn't help.
Hence leaky rocker gasket.
Front inlet rubber seal wants investigating.
A bit of breather tweaking should sort it and I suppose the constant high revs on the rollers highlighted these minors.
You can see how the FI boys have trouble if my NA engine creates problems at constant high revs.
Graham, have a test drive then you'll know you want to!
I don't think you can associate 'breathing' with the valley gasket seal leak, which you had before RR runs 
I'll never be convinced with the vent to can / atmosphere compared to proper PCV though. The easy way I found to tune the PCV was to make up a Tee - piece with screw in 'jets' that I could bore in various diameters, and they all needed to be significantly smaller than standard to adjust to big breathing monsters. So not just restricting the crank air/in breather, but also that 3 way PCV hose connector (flame trap ¬ trumpet base ¬ pre-throttle).
I still can't get my head round whether a 'yank-style' PCV valve arrangement would work well with a motor that is sucking really hard, and the 'english' style of allowing the engine to also occasionally gulp shots of fresh air from the air filter side of the throttle seems a particularly smart way to keep the pipes clean (forcing oil back down the breather hoses into the engine).
Making custom parts sounds complicated, but quite easy really, something like take an m12 bolt, thin down hex, drill & tap m8/6 internal. Make a selection of m8/6 grub screws drilled out with small orifices so you can quickly insert them to tune the PCV. Thats exactly what I did to make connections to the ACT CF boxes, and basically a similar process to make a tee-piece (1" hex, perpendicular insert for tee and then all 3 stubs tapped so 'jets' could be popped in to tweak air flows/breathing).
I'll never be convinced with the vent to can / atmosphere compared to proper PCV though. The easy way I found to tune the PCV was to make up a Tee - piece with screw in 'jets' that I could bore in various diameters, and they all needed to be significantly smaller than standard to adjust to big breathing monsters. So not just restricting the crank air/in breather, but also that 3 way PCV hose connector (flame trap ¬ trumpet base ¬ pre-throttle).
I still can't get my head round whether a 'yank-style' PCV valve arrangement would work well with a motor that is sucking really hard, and the 'english' style of allowing the engine to also occasionally gulp shots of fresh air from the air filter side of the throttle seems a particularly smart way to keep the pipes clean (forcing oil back down the breather hoses into the engine).
Making custom parts sounds complicated, but quite easy really, something like take an m12 bolt, thin down hex, drill & tap m8/6 internal. Make a selection of m8/6 grub screws drilled out with small orifices so you can quickly insert them to tune the PCV. Thats exactly what I did to make connections to the ACT CF boxes, and basically a similar process to make a tee-piece (1" hex, perpendicular insert for tee and then all 3 stubs tapped so 'jets' could be popped in to tweak air flows/breathing).
phazed said:
spend said:
phazed said:
.......you'll hear me cursing abou 6pm I guess 
Got lost or gone a long way round?Well after spending the afternoon at Joolz for a mapping session after fitting the stage 4 heads and the roller rockers and meeting Spend for the first time!
The results are in;
That's 384.8 BHP/428 torques
Performance is noticeably 40 BHP and 30 torques faster.
It was worth it in the end!
Gotta go, buying beds today
Only 15.2HP to go!!! Gassing Station | Chimaera | Top of Page | What's New | My Stuff