Garrett or IHI

[Madmile]

What is it the Yanks say " Theres no such thing as a free lunch" if you want 400bhp you need a min 44.5lbs comp wheel and largeport. The 18g wheel 40lb/min will be 365-370bhp but its really a good idea to keep things within there effciency range. Like has been said the Pe18020f is a realistic 380-390bhp turbo. If compressor surge can be avoided i really feel like td05 20g would be a nice 380-390bhp turbo running effciently. Jabba dont agree with me and reckon the td05 20g aint the way forward. I aint slagging jabba or saying i know better i just feel from many hours of research that a car with a 7800rpm rev limit would benefit from the td05 20g over the td05 18 or a 18 wheeled vf turbo. On a smallport engine i reckon a td05 20g will perform like a largeport Pe1820f so 380-390bhp. Surge is my only concern, if this can be avoided a little lag will be there but a 2wd 7800rpm Ibiza will fly on this setup also the td05 20g does not seem to ramp up the torque like the 18g. You will have the power above 6500-7800rpm that the vf34 needs.

The td06 20g is another league and will have lag, but the power will be there top end.

 

[ibizacupra]

and there's the fitment issue for the other hardware you wish to retain. (like exhaust manifold and DP etc)

this may also influence choice

 

[Madmile]

I reckon the 18g will fit simply because the Evo3 16g does, the td05 20g would be another issue. I guess if you want another 40-50bhp over vf34 .18 then the sensible money is on the td05 18g.

 

[ibizacupra]

I reckon the 18g will fit simply because the Evo3 16g does, the td05 20g would be another issue. I guess if you want another 40-50bhp over vf34 .18 then the sensible money is on the td05 18g.

you might want to speak to elton if not done so already on the td05-18g result

 

[ryan_s3]

So did the 18g not fair as well as expected? i heard jerome was making 30bhp more than vf34 on a 18g.

 

[ibizacupra]

So did the 18g not fair as well as expected? i heard jerome was making 30bhp more than vf34 on a 18g.

you need to ask elton & Co

 

[Madmile]

you might want to speak to elton if not done so already on the td05-18g result

The result i think you mean Bill was a evo3 16g. I spoke to a well respected scooby tuner who has a evo3 16g from the jabba supplier of there evo3 16g and they had the same results. They fitted a deadbolt 18g and it was night and day in comparrison. Theres a thread on scoobynet " Are all 18g's built the same" and the answer is no. Deadbolts 18g's generally perform as they say on the tin, theres a lot of 18g Evo3 clones kicking about which are made in china which dont provide what they claim. Now i aint claiming anything i am just throwing info out there which may be right or wrong but its there to be read and researched upon.

 

[ryan_s3]

Do you know the result gary?

 

[Madmile]

Do you know the result gary?

LOL. maybe.

I wish i knew the answer 100% guys as i would happily share the info and we would happily all have what we want.

Fitment, spool time, reliability. I am pretty sick of it all. My brain is fried,

 

[ryan_s3]

I'm not suprised if the big 16g is similar performance to a vf34/p20 as it has very similar comp/turbine wheels

 

[Madmile]

The 18g is supposedly worth 20bhp over the big 16g. So 380bhp is a possibilty. I really dont know thats why sometimes its better to aim high td06 knowing you wont be dissapointed ie oversizing a little.

 

[ibizacupra]

The result i think you mean Bill was a evo3 16g. I spoke to a well respected scooby tuner who has a evo3 16g from the jabba supplier of there evo3 16g and they had the same results. They fitted a deadbolt 18g and it was night and day in comparrison. Theres a thread on scoobynet " Are all 18g's built the same" and the answer is no. Deadbolts 18g's generally perform as they say on the tin, theres a lot of 18g Evo3 clones kicking about which are made in china which dont provide what they claim. Now i aint claiming anything i am just throwing info out there which may be right or wrong but its there to be read and researched upon.

yea, sounds about right.
not all are created equal.

just to confuse us all

 

[Madmile]

I'll let you all know how Jabbas new turbo fairs on my car i have scrapped the idea of a Td06 20g and have decided to try there 380bhp turbo. The hope is similar performance to Bills old Pe1820f basically only a peak power gain of 40bhp ish but instead of making 260bhp @ the fly @ 7800rpm were hoping for more like 340-350bhp.

Bills Pe1820f flywheel from awesome
http://www.awesome-gti.co.uk/rollingroad/graph/rr.xmas2_29.12.05/brockbank2.jpg

Custradcupras from awesome
http://www.awesome-gti.co.uk/rollingroad/graph/rr.scn_10.12.05/custardcupra2.jpg

You can see how the vf34 aint making the power i want to above 6500rpm. Jabbas new hybrid will hopefully fill the gap at the top end. It should also spool a little quicker than the Pe or at least as well. The results should be in by Mid October.

 

[caney]

i'll look forward to the results gary! tempted by this also although the downsides are in 6 months time will you kick yourself and wish you spent the extra to achieve 400+bhp that's my dilemma as mine is already 350-360bhp. the upside is that you'll know it will definately fit back on the car

 

[Casper]

I am, thinking of changing my ko4r setup for a ATP gt28rs eliminator. I will leave the 440 @4 bar injectors and std. internals. I am hoping to drive around 1,4-1,5 bar safely with 330 + hp. What do you guys think it is a safe boost for that turbo and std. internals? And are the injectors fine to that hp level(330+)?
Was thinking also of going full monty with a complete engine rebuilt and gt3071r turbo, but i want to have a daily driver not a 1/4 mile only car and since i broke 2nd gear few days ago i started to think a little about the g'box limits too.


Cheers

 

[YerMother]

Injectors will be fine for that power levels! As for safe limits, its abit of luck really, it's bordering on the stressing things side!

 

[Mitchy]

The pistons are good in the engine, the rods are the weak link and i think 340bhp is near on the limit, perhaps 350 at a stretch!

Is it possible just to uprate the rods and keep the standard mahle pistons? There is still no definitive answer as to whether the AMK and BAM rods/pins differ!

 

[Casper]

I know the pistons are ok for much, much more, the rods are more questionable. They are working ok for now, got 334 lb/ft of torque @ 3871rpm as the boost comes on very rapidly which surely isn't a good thing for the rods. I think if i go a little easier with the torque on the gt28rs and more progresivelly (vs the k04r) it should be ok. I guess i am going to try my luck. Hope to go into 330 with no crazy boost

 

[ryan_s3]

Is is worth changing a turbo out for 20/30bhp?

 

[Madmile]

The torque will be the same 340-350lbs/ft as it is now. Its the high torque thats the killer. Custardcupra is at 358lbs/ft now on the vf34, i am also so the diff in torque is not the issue. If it breaks it breaks. There stnd engines running Gt2871r's at 23-25psi and Apr are going in at the 380bhp level on the kits. The Pe was able to break Bills box the Td06 20g would probably be over stepping the mark.