IHI VF34 Conversion Pics **Now with a TD05H-18G**

[HTC]

Thanks for the interest.

Its getting there. My car is having fluctuating lambda issues on full chat. James is thinking its maybe a fuelling problem. I've got all the right components - S3 pump, big injectors 4bar fpr blah blah, but its looking like a blockage.....maybe just a duff old filter. Just need to wait and see.
They've had it up to 25psi breifly and it's putting out good power, but they don't want to let it go with anything suspect that could cause engine damage, which I appreciate.

Also the old skool DBW ECUs are a pig to programme, so I'll leave them to it.
Fingers cross for the weekend.

James and Mike have been keeping me informed of progress (thanks guys). They'll have it sorted soon.

 

[pj1985]

25psi?

 

[HTC]

Thats what they said. Won't be a permanent thing. Just a quick peak. Must be part of the mapping process.

 

[caveo]

took em over a week to map mine but worth the wait.

 

[HTC]

Thorough is good in my book. You still enjoying yours caveo? Want more power yet?

 

[caveo]

of course i want more but im too tight to pay out 2 grand on the internals and shes a joy to squeeze the loud pedel, next on list clutch and flywheel and diff ( when old clutch goes but its holding on for dear life.)

 

[HTC]

Wow, your clutch is still holding! Mine went even with a k03s and jabba remap. Next day infact.

 

[caveo]

clutchs are a bit of a lottery me thinks ( im winning at the mo )

 

[ryan_s3]

have you got the thing mapped yet!

 

[HTC]

I think I've forgotten how to drive. Its taking way longer than I had planned for.

Run of events are. Workshop very busy, so car was started on a few days later than expected. Prior car parts supply issue I was told.
Engine was then fully mapped over the next week but fueling became an issue. Lambda on full chat was irratic, so a search for the problem started.
Cause was, as mentioned, a duff fuel filter.
Car had then to be mapped from scratch again, another week and also my exhaust started blowing, which was sorted.
Due to my ECU model, it can't be mapped live. ECU has to be removed from the car each time to be reflashed......apparently its a bit of a pain.

Anyway, the latest is that the car's MOT runs out on Friday. Mentioned this to JBS and they've offered to MOT it for me.

So, I would love to get a call on Friday saying its ready to pick up.

(I know the JBS guys are reading threads and are aware of their online image, so I know I'll get a good map...........you hear that guys!! )

They've kept me well informed at every stage.

 

[ryan_s3]

It's a early me7 ecu so cannot be flashed insitu mine was the same.

 

[ibizacupra]

blimey. a car worse than an ibiza to flash!

 

[HTC]

Update:
I have my car back now. Picked it up in Monday. Thought I'd drive it about for a few days before posting results. Anyways, here's the dyno:

It made good power. Steve at JBS said he would get it over 300bhp, so mission accomplished there. I was initially a little disapointed at the torque value as I've seen higher. Spoke to Steve who explained torque is pegged at the value in the dyno to protect the rods. The turbo has more in it. If I want to fit new rods, he can add more.

On the road the car is very different to how is was with the K03s. Power builds very smoothly rather than a kick in the back at low revs. I've not had a chance to log fuel and ignition yet, but it's very responsive off boost also. My car is cable throttle, but he has done something different to the previous mapper in that area. Driving in traffic feels easier now. I used to get a small jolt coming off the throttle when crawling, this has disapeared.
As for traction, I can only talk of dry conditions so far. Basically it hooks up fine. 1st gear is over in a blink, 2nd gear is a bit of an animal but essentially fine and manegable. The way the boost builds and the revs it occurs allows the tyres to grip and off you go. If you are silly it will spin, but I was pleasantly surprised at how easy it is to get away. Wet weather....well we'll see. Overall its easier to drive than my k03s was away from a standstill. Bonus!

Another aspect I enjoy is the transient boost in 5th at around 80mph (on a private road). Overtaking is truely effortless now. Boost increases so quickly (apparently a characteristic of roller bearings). Net result is a nice shove in the back and a quick increase in speed. Max boost seems to be about 22psi on my gauge.

One thing I spotted which I didn't expect is a slightly lumpy idle. Its nothing to write home about, but listening to the exhaust if standing behind the car you can hear the odd miss. I've contacted JBS about this. It may be a characteristic of the injectors or plugs I'm running. Not sure yet. How are other people's idle characteristics? I'm running Genesis injectors with OEM platinum bosch plugs. Caveo, what's your idle like?

Pricewise I haven't gone through all my recepts, but a quick run through in my head puts the total at around £2300. I think you'll agree that this is significantly less than what you can pay for a similar setup. My initial goal was to reach 300bhp whilst keeping costs down. I think I've achieved that.

I won't brag about some of the expensive machinery I've managed to keep up with, but I just want to get across the sentiment that my car is a fast neat little package now, and I'm very happy with it.

So, thanks to me for fitting the kit and JBS for the software.

 

[lofer]

My initial goal was to reach 3000bhp whilst keeping costs down.

Goodness! You must be disappointed!

 

[m0rk]

274lbft is a way short of what I thought the rods could take? which is a shame

Lumpy idle is probably due to the Maf? or cable throttle

 

[Wilko]

If yours is cable throttle, it's big port, so mid range torque will be lower. Look at my recent awesome results.
Rods won't go at less than 400lb ft from straight torque loads, but combined with high revs will fatigue over time. The fatigue life is lengthened by reducing the torque and not revving it past 6500 too often.

When I lost a rod it was at about 15lb of boost in second in the wet, but they'd seen 7600rpm way too often. The highest load on the rods is as they accelerate from side to side at MDC, and not from compression loads. These are highest at high rpm

I believe rob t blew some pauters, and his engine develops bugger all torque in turbo motor terms, but it spins to silly speeds.

 

[HTC]

Yes, I have a large port head. Thanks for the info about torque with this type. So high power at high revs or high torque at low revs are the danger areas. I'll keep that in mind for when I'm pushing it.

 

[HTC]

274lbft is a way short of what I thought the rods could take? which is a shame

Lumpy idle is probably due to the Maf? or cable throttle

MAF is new. I was driving the car mechanically finished for a few weeks prior to mapping with a steady idle. The only component difference are the injectors.

 

[ibizacupra]

I believe rob t blew some pauters, and his engine develops bugger all torque in turbo motor terms, but it spins to silly speeds.

you belive incorrectly john

valve failure

my original ibiza motor 7700rpm used lots, 35k miles IHI'd on high boost stock rods........ no worries.

play with ign, daft cocktail of fueling with thinners & timing tweeks on the other hand, can expose rods for the world to see without the use of a spanner.

 

[ibizacupra]

Yes, I have a large port head. Thanks for the info about torque with this type. So high power at high revs or high torque at low revs are the danger areas. I'll keep that in mind for when I'm pushing it.

mine when first done, 320bhp/280lbft on vf34
sounds on the ballpark.