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VF34 - Max bhp it will flow?
- Thread starter The_one
- Start date
I don't know alot about this blouch company but a 7cm td05h housing seems a bit small. Personally from what i have learned from going to the evo crowd forced performance seem to be the turbo supplier of choice. I think you should swap that turbo for a FP Green which is a proper td06 20g capable of 450bhp.A garratt turbo comparable to that is a gt3071r.
erm.. kinda.. but the comp wheel is the same as my garrett.
65lb comp wheel on fp red so say. looks the same, but garrett do insist on using these huge oversize housings which make them look so much bigger, when they're not when it comes downto the business end. very different style of turbine tho.. GT one is more open to look at, than the TD one. but the red and green came with different turbine wheels. red had one less blade. same style tho, very curved and longer I think looking at em.
external gate should help things flow wise as will new manifold.
it goes on and on... ker-ching ££
65lb comp wheel on fp red so say. looks the same, but garrett do insist on using these huge oversize housings which make them look so much bigger, when they're not when it comes downto the business end. very different style of turbine tho.. GT one is more open to look at, than the TD one. but the red and green came with different turbine wheels. red had one less blade. same style tho, very curved and longer I think looking at em.
external gate should help things flow wise as will new manifold.
it goes on and on... ker-ching ££
elrao
Guest
Aaaaah, too many turbos!
At the moment the JBS Twin Scroll is my front runner. Costs about the same as their IHI/GT hybrid inc. the manifold etc. Supposed to give lower spool than the standard VF34 and is capable of 400BHP with standard intake (or so they say!)
At the moment the JBS Twin Scroll is my front runner. Costs about the same as their IHI/GT hybrid inc. the manifold etc. Supposed to give lower spool than the standard VF34 and is capable of 400BHP with standard intake (or so they say!)
Laggy????
I've been running my Golf with APR Stage 3+ which uses Garrett GT28RS turbo and is only marginally laggier than KO3s.
Good spool from just over 2000 rpm and is pulling well and truly at 2500 rpm.
Peak torque at just over 3100 and it pulls like a train to over 7k.
Ian
elrao
Guest
I am looking at Garret based kits for the 225 TT engine and I've looked at the dyno plots that Awesome post on their website of the APR 3+ kit, the graphs do look ok for the GT28RS kit on a 150/180 Golf with the new torque and power curves being above those of the stock KO3s
however the plots from their GT2871RS kit for the 225 engine is not so good, it looks like until you get to 3500 rpm you have less power with the GT2871RS than the stock K04, let alone a remapped one.
Unless I am reading these wrong?
I am looking at Garret based kits for the 225 TT engine and I've looked at the dyno plots that Awesome post on their website of the APR 3+ kit, the graphs do look ok for the GT28RS kit on a 150/180 Golf with the new torque and power curves being above those of the stock KO3s
however the plots from their GT2871RS kit for the 225 engine is not so good, it looks like until you get to 3500 rpm you have less power with the GT2871RS than the stock K04, let alone a remapped one.
Unless I am reading these wrong?
I think you'll find that the 2871R plot is ATW. Certainly the 28RS gives a very smooth early deliver...you should test out their demo.!!
For most 340 bhp is pretty strong in a FWD road car...certainly my old valver with 'just' 200 horses on track was a nice blend of power and traction with a diff.
340 certainly needs respect and track rubber whilst on track. Road tyres can struggle to deploy.
elrao
Guest
I am looking for a turbo for a 225 Quattro TT.
The 28RS looks like a good conversion for the 150/180 engines, but the 2871RS looks not so good (according to these plots) for the 225 engine.
When you say the 2871RS plot being ATW, I am assuming you mean Torqu redings, for BHP says they are plotting "Clutch Power", and 383BHP is about right according to their claims. Regardless of where the torque is being measured, as a comparisson between the stock K04 and the GT2871RS, it would appear the Garrett is considerably laggier than the KO4 - which is what everyone has told me and what I said initially!
The 28RS looks like a good conversion for the 150/180 engines, but the 2871RS looks not so good (according to these plots) for the 225 engine.
When you say the 2871RS plot being ATW, I am assuming you mean Torqu redings, for BHP says they are plotting "Clutch Power", and 383BHP is about right according to their claims. Regardless of where the torque is being measured, as a comparisson between the stock K04 and the GT2871RS, it would appear the Garrett is considerably laggier than the KO4 - which is what everyone has told me and what I said initially!
If your that worried about lag don't go Big Turbo.
The GT28RS and 2871R are a far superior proposition than the KO4 which is breathless at the top.
Certainly the Vortex fan's really like the 2871R.
Why not try out Aawesome's demo car to gauge the feel of the power and delivery?
elrao
Guest
I am just trying to gauge which Big Turbo has the least lag, from what I have been told a good IHI set up will be better than an equivalent Garrett one.
At the moment am in discussion with JBS about their Twin Scroll, which they claim spools up at similar revs to the K04.
Awesome are too far away to go and drive their demo car, plus their kits are expensive compared to other Garrett ones and IHI ones from other companies.
At the moment am in discussion with JBS about their Twin Scroll, which they claim spools up at similar revs to the K04.
Awesome are too far away to go and drive their demo car, plus their kits are expensive compared to other Garrett ones and IHI ones from other companies.
Stick with JBS....I decided APR Stage 3+ and am extremely pleased with it's delivery, quality and known proven package.
Nothing wrong with the delivery of the GT28RS which as said spools nice and early.
I would like to see a similar IHI kit plotted against the APR kit and compare power and deliivery.
I for one decided to wait for this kit due to the development issues raised by others ie bearing cartridge failures melting houses if trying too hard.
Sensible mapping with IHI ie 300 to 320 should be reliable according to others.
You can order the APR direct and save a shed load and order the manifold seperately.
Nothing wrong with the delivery of the GT28RS which as said spools nice and early.
I would like to see a similar IHI kit plotted against the APR kit and compare power and deliivery.
I for one decided to wait for this kit due to the development issues raised by others ie bearing cartridge failures melting houses if trying too hard.
Sensible mapping with IHI ie 300 to 320 should be reliable according to others.
You can order the APR direct and save a shed load and order the manifold seperately.
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you also said 350+bhp
VF34 aint reliable when pushed hard to these 'real' numbers
GT2871R is going to deliver that power.
power band is something to chew on... not just "lag" as get a diesel if you want a low revving torque motor which pulls from 1500rpm
3300rpm - 7800rpm from a typical BT and mid 350bhp level..
drive one.. and make your mind up.
no discussions on the net will be the same as experiencing it 1st hand. believe me... my test drive of jabba's mk4 ihi made me want one instantly. did'nt deliver like a k03 but feck me it moved like nothing i had driven before. just different driving style. with 4wd you have the traction to make good use of high power.
elrao
Guest
Looks like Garrett and APR 3+ is a good option as a replacement for the K03, but those plots for the bigger kit for my car just don't look as good as others I have seen.
Am looking for more than 300 to 320 as I can get that with a Hybrid KO4 (JBS05 etc.) on the on the 225 TT engine. The GT28RS would be a bit of a waste of time really, would have to be the larger GT2871RS, which as said before doesn't spool as freely as the smaller GT28RS from the dyno plots I have seen.
Am looking for more than 300 to 320 as I can get that with a Hybrid KO4 (JBS05 etc.) on the on the 225 TT engine. The GT28RS would be a bit of a waste of time really, would have to be the larger GT2871RS, which as said before doesn't spool as freely as the smaller GT28RS from the dyno plots I have seen.
elrao
Guest
Bill - good advice, am trying to do my web research first so I know which ones are worth travelling to test.
Have decided against the stock VF34 for the reasons mentioned, weak bearings and 350 is right at their limit really.
I am not ruling out a Garrett, Backdraft kits are good value for money.
Have decided against the stock VF34 for the reasons mentioned, weak bearings and 350 is right at their limit really.
I am not ruling out a Garrett, Backdraft kits are good value for money.
elrao
Guest
Awesome don't say you need internals on their website, although I am sure if you talk to them about it they would recommend rods atleast.
Backdraft recommend rods and pistons with their 400 kit based on the GT2871RS
Backdraft recommend rods and pistons with their 400 kit based on the GT2871RS
