RobSR

Welcome to ownership! Enjoy! 

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

2 minutes ago, Sam44 said:

It's booked in on the 21st January 2021. I due to fly home on the 5th all going well it's booked in local to fleetwood. I do have a second home near work in Oxfordshire were I'm building a gt, so nice to know. 

Tidy figures let's see what she does. I can get it dynoed at TD also after on the same setup to do a Dyno comparison. I'd really like to meet these lads I'm a big fan. 

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.

1 hour ago, Sam44 said:

Roller dyno, but I can look for a hub dyno. 

It's on 195 15 rainsport tyres very good condition all set correctly g60 box run in 4th gear Cusco lsd. 7psi boost

What's your estimate. I'll get all the relative info. 

I'm just interested if there could be a surprise factor here. 

As I'm very new to the car it keeps surprising me every time we advance things. It's good to get a take on it from an experienced person. Just a bit of fun. 

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?

2 hours ago, Claymore said:

Thanks for clearing that up, it was more of a thinking out loud question to Sam44 being as he already runs a 340 + a 255. Thought it would be simpler with one big pump. Unless they're staged or something. It seems a lot to me also but that's what he uses.

I have researched the Walbro 255 lph and all the info claims their 500bhp capable, it's nice to hear from someone with experience of using them. Should be more than enough for my build. I'd probably get away with a new stock pump really.

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) 

5 hours ago, Claymore said:

I was going to estimate around 160+bhp as this is what I was quoted by Tuning developments for a 4efe + t using a TD04l at 0.5bar boost. But this was on glanza injectors with a 255lph pump.

We all know a Glanza produces circa. 200bhp with TD04l at 1 bar boost again with 295cc injectors and 255lph pump.

Being as my turbo setup and fuelling arrangements are yet to be set in stone can you detail which parts are needed to get the extra 40hp at 0.5 bar boost please?

Your setup (from memory) 370cc injectors, 430lph + 255 lph pumps, fuel cooler and an adjustable fpr set at ??psi? 

Would a 600lph single pump work instead?

Looking forward to the results, lots of graphs with boost and AFR please. So frustrating when this info is missing. Interested to see the spool also (boost vs rpm).

 

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 😎

2 hours ago, Sam44 said:

The difference is anuff for a colder spark plug to be run in cylinder 1, compared to the rest. 

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

13 hours ago, Sam44 said:

It's mainly because cylinder 1 runs the hottest. the inlet design (position of cylinder 1 in relation to the throttle), and fuel rail. with cylinder 1 also the last injector on the rail. There's a possible link as to why this cylinder runs the hottest. 

Also with it running the hottest im foucing onit. 

Using cast pistons this cylinder is the 1 to watch (expansion in the bore)

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! 

1 hour ago, ste91 said:

Funnily enough I discovered the Bosch EV14 550's earlier and started looking at them, reasonably priced, especially when you consider a 2nd hand set of RX7 440s plus cleaning/testing will probably set you back £150 anyway, a little extra gets you a brand new set of Bosch injectors with a more modern design, it's a no brainer, the only thing is there are a LOT of these Bosch 550's being sold and I'm skeptical about fakes, can you recommend anywhere reliable that stocks them? Your site only has Injector Dynamics as far as I can see.

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. 
 

22 hours ago, MegstuBMW said:

Not sure what do you mean head braces? All engine mounts I made from polyurethane rod, just cut off and grinded to fit in to original engine mount housing.

Head gasket was Athena 1.2mm, 1.6bar boost, fuel pump WALBRO TIA 255 bolt on upgrade.

From 6000rpm Nm is going down hill.

My AFR is good, injector duty cycle does not reach 70%.

Valve springs is upgraded, more than double strength compared to NA springs (not sure how it compares to 4E-FTE springs).

Yes, intercooler piping, it is not big enough, good point.

Exhaust diameter is 60mm, turbo is k04 from audi tt 1.8 (I know it is too small and that is my guess why power is falling in top end so much).

Thank you for your support and ideas!

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

35 minutes ago, Sam44 said:

Just out of interest what figures would you be happy with on this setup. 

I'm finding good figures on the plug and play blitz Access ems. When I search them. Also the hks fcon

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..