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has anyone had a chance to test litchfield new twin scroll turbo? they claim good numbers, but from the info I managed to see the turbo is twin entry single scroll turbo like HKS2835 rather than a full twin scroll unit like vf36/37.. I'm curious on the performance...
has anyone had a chance to test litchfield new twin scroll turbo? they claim good numbers, but from the info I managed to see the turbo is twin entry single scroll turbo like HKS2835 rather than a full twin scroll unit like vf36/37.. I'm curious on the performance...
The new Litchfield turbo is a twin scroll unit. There is no difference in the turbine and compressor of a single scroll and twin scroll unit. The difference is in the exhaust housing. A twin scroll uses a divider to separate the exhaust pulses. Twin entry is just another name for a twin scroll.
Your best bet would be to contact Iain Litchfield directly. 01684 850999.
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Lightweight. Nothin' but a peanut.
i've been speaking with Iain a lot, but wanted to see if anyone else can share a comment on the new turbo...
also, why did they choose to go a twin entry single scroll route rather than a full twin scroll unit like vf36/37/42?
Does anyone know if this is suitable for a MK1 T25?
I believe it is.
Quote:
Originally Posted by Ilya
i've been speaking with Iain a lot, but wanted to see if anyone else can share a comment on the new turbo...
also, why did they choose to go a twin entry single scroll route rather than a full twin scroll unit like vf36/37/42?
I give up.
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Lightweight. Nothin' but a peanut.
it's just that some time earlier there was a thread regarding the HKS 2835 twin scroll turbo and the conclusion was that it is a twin entry single scroll turbo and I understand that this new turbo is identical in its structure... I also thought that twin scroll turbos are called that because of two separate exhaust channels in the hot side of the turbocharger, and this one has only got twin entry, right?
Location: Tooling around in an API supplied JDM Hawkeye - now running 490bhp/475ftlb!
Posts: 6,902
I have been in the latest shape Type20 Development car with the twin scroll test mule and it was ballistic. I believe the latest incarnation of THAT twin scroll is even better.
As has been said.... the compressor (inlet side) and possibly the exhaust flange could be the same, but the up-pipe flange to the turbine wheel will be two ports, thus requiring a twin scroll up-pipe flange.
MrRA,
WTF is an "expressor".... something you make coffee with?
in the end, I'm planning to have this turbo installed on my spec-c as soon as it becomes available and hope that it will be a great performer...
my car will look something like this:
stock spec-C ej207 engine
litchfield type 20 twin scroll turbo
fujitsubo exhaust manifold & up-pipe
milltek full de-cat exhaust
PE650 injectors
Zerosports intake system with alu box
Koyo rad
maybe an aftermarket TMIC
aftermarket clutch with lightened flywheel
I've still got a few Qs though...
1)will Ecutek be an adequate ECU for the job or I should go for something like Hydra or other?
2)should I think about changing the stock pistons to something stronger, considering there are examples of stock pistons getting damaged at such power lvls?
3)if changing the pistons, is there a point in stroking the engine?
4)how do PE injectors compare to other brands in terms of performance?
5)will I need to install anything else to reliably achieve around 400 hp?
1) Ecutek should be fine for above, (it can do dual maps; launch control; & even megarom on our newer JDM's) but depends what you want out of car & hence ECU
2) Stock pistons on a Spec C should be fine for 400bhp. ps which Spec C's have damaged pistons at 400bhp, I havent heard of, but are there????
5) Maybe change inlet hose size? Clutch & flywheel should be fine too & not sure how much benefit will be had from changing up pipe. I would look into uprating pads & disks if not already done so as well as fitting gauges & a 3 port boost solenoid.
1) Ecutek should be fine for above, (it can do dual maps; launch control; & even megarom on our newer JDM's) but depends what you want out of car & hence ECU.
As I understand it megarom not available on my06 hawkeye.
Location: Tooling around in an API supplied JDM Hawkeye - now running 490bhp/475ftlb!
Posts: 6,902
I've still got a few Qs though...
1)will Ecutek be an adequate ECU for the job or I should go for something like Hydra or other? Ecutek is fine at this level, unless you want some more funky features not available under Ecutek
2)should I think about changing the stock pistons to something stronger, considering there are examples of stock pistons getting damaged at such power lvls? Personally, I would say you would be OK. Mapping is the key here as I know of a number of standard STi engines making 450+bhp and being driven hard with no issues.... as of yet.
3)if changing the pistons, is there a point in stroking the engine? Maybe, if you were changing the pistons, but in reality I would noty bother with the spec you are intending.
4)how do PE injectors compare to other brands in terms of performance? Fine
5)will I need to install anything else to reliably achieve around 400 hp? Depends on use of car
all of the exhaust is already installed on the car along with AP-racing 6pots in the front. PE injectors & AVCR boost controller are yet to be installed and Koyo rad, TMIC, turbo and FPR are to be bought in the near future. The rest depends on my budget...
Location: oop north in a spec-c.Now sold and starting on a classic ra track/sprint/road car
Posts: 1,954
Ilya I think Shaun has given you your answer as for pistons letting go the only ones I have heard of are the rally cars but they are putting out way above what you need on a road car torque wise the piston clearances on these engines are a lot more finer I have had mine running at the spec you are looking for the last 2 years has done countless trackdays and 50+ runs up the quarter and it hasnt missed a beat.There is one car I know of which is running 450+ and is still running standard internals so that must mean something if there are any that have let go I would say it would be down to bad maintainance.
thx 4 the advice. in this case the engine will stay as it is.
how does this litchfield turbo compare to the HKS unit? (maybe Iain can help us here)
and what are the cams like on the spec-c? do u think anything can be done to improve on heads?
I have been in the latest shape Type20 Development car with the twin scroll test mule and it was ballistic. I believe the latest incarnation of THAT twin scroll is even better.
I'd agree with that IIRC it also has his own design ceramic coated Housing. The new Type20 did go very well around Brands Hatch last month although i felt a bit icky and refrained from another ride
Got to get me some Alcon brake
Tony
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I'm still waiting for the turbo to be oficially released let's hope it is out before the 09 ends... on the other hand I am thinking - considering i will drive my scoob all the way from Moscow, maybe a 2.35 and a 450/500 turbo is the way to go I keep reading this forum with some amazing spec cars and wish there were as much compitent tuners in RUS. as in UK. I'm jealous
what would roughly be the budget of a 2.35 build along with the turbo on my spec-c?
In the meantime I have acquired AST competition suspension and few cosmetic bits & pieces, so here is a few recent shots of my baby:
Great pics Especially 4th & 5th pic
I love the interior, is it suede or alcantara & how easy was it to do?
ps the only thing I dont like are the new headlights!
alcantara all the way I didn't do it myself, but I think anyone who does interior fabrications is capable of doing it, as for the headlights - i very much like'em but thx for an honest opinion.
litchfield ts turbo/from rus with love :)
don't give up mate 
IIRC it also has his own design ceramic coated Housing. The new Type20 did go very well around Brands Hatch last month 
although i felt a bit icky and refrained from another ride 
let's hope it is out before the 09 ends... on the other hand I am thinking - considering i will drive my scoob all the way from Moscow, maybe a 2.35 and a 450/500 turbo is the way to go 
