RobSR

Welcome to ownership! Enjoy!

Lovely work, i actually quite like the colour of the gearbox case!

Feel free to bring it down after and can do a comparison here also. TD have always been a bit funny about doing back to back tests on different dyno's. I may even do a dyno day on a Saturday morning or something if people are interested.

You could come and use my hub dyno but i dont think you're local to London? Whens it going on? 0.5 bar id say upto 170-180ish, but so many variables on roller dyno.

The pumps will have no effect on HP or Lambda if all working correctly as its a returned system. When its going on the dyno? Is it a hub dyno or a roller dyno?

Yes I gathered you were ;), again a 255 + 340 is massively overkill, I’d run the one, as 2x also places more load on the electrical system unnecessarily. Yea id say they were being ambitious saying 500, but I suppose 450 isn’t a million miles away. Staging the pumps is a good idea if running more than two, but again, only if you need the extra fuel flow For most starlets you’re never really going to need more than a 330lph (and that’s only if your aiming for 450+ bhp)

A 600lph pump is massively overkill unless youre running alchol in the fuel. For reference a 255lph will just about flow enough for 450bhp on a pump fuel flat out, fuel pressure was approx 4.5 bar (base + map). For a 200/300 bhp build a 255lph is more than enough. Any bigger like 600lph, you're going just going to be heating the fuel up unnecessarily and returning most of it through the reg (thats if you reg can even cope with the flow) back to the tank. Literally pointless.

ITEC 100% over Garrett for me. Looking good Joey 😎

Yes but what is the actual difference you've seen in Deg C?

What delta have you seen across the cylinders?

Is there a reason why you fitted your pre turbo EGT in the runner of Cylinder 1, seeing as you only have one pre turbo wouldn’t it be better to take an average in the collector?

If you’re going to the trouble of getting a billet crank made, get the rods made to. Good luck.. making one spin to 11k reliably will not be easy...

I had Pi springs on my SR, for a lowering spring, I was pretty happy with them! The OE TTE Eibach ride nicer however but that’s to be expected

NBR 24 was pretty terrible all things considered to previous years!

Looking good!

CP fuel injection

If youre trying to hit late 2's/3's i think youll find the 370cc's too small. 440's are good just about for low 300's so i would atleast go up to them, however the denso 440cc doesnt have the nicest injector characteristics. If you want to be sure id run a new Bosch or Injector Dynamics, you'll have plenty of cc headroom and have better control than the older Denso's. You can get the Bosch in a 550cc.

Welcome along, all the best for the project!

Nice to see someone taking an interest in electronics on their build!

I don’t believe anyone has ever logged cylinder pressure on one as it’s not exactly a simple / cost effective process to do properly. If it helps, I’ve made 463bhp on a 4E at 74.5mm bore, ported head but stock valve. What are you trying to achieve / do? Happy to give you tips/pointers along the way if needed.

You can fit a GT30 my friend and you’ll still loose torque after 5500rpm with the stock head/and cams. That’s where the main restriction lies. Standard fte fuel rail is fine, you can run 1000cc injectors at upto 5 bar pressure with no issues whatsoever. I think your issue is either head / block prep or you have been unlucky with the gasket. I’ve seen a few Athena’s fail like yours, I’d try swapping to a cometic, redeck the block and skim the head.

The drop off is common with stock style cams, usually after around 5500rpm. Hope you get it fixed up soon

The peak figures are ok, it’s just the curve is not fab, very laggy/unresponsive. Peak torque should be a lot lower, but no doubt down to having an ecu that’s not correctly calibrated to the cars setup.

I’d disagree, but each to their own preferences. No they are not programmable

I’m not sure that a CT9 hybrid that produces peak torque of 180ft lb at 6k rpm is seriously impressive? 🤷‍♂️ Sounds pretty terrible to me..