BLKCRX

Geoff from Full race ( Full race ROCK the best welders and manifold makers on the earth) is also on to helping me make up my correct decisions but here’s the run down for Honda-Tech people.

I was down at my local turbo shop talking turbos all morning all the photo’s I took can be accessed from this URL.

http://home.themaestro.net/blk...x.htm

My current turbo which is a GT3040 which is a 450hp turbo product code 70017-001
Pictures of the turbo can be seen here.


[IMG] http://home.themaestro.net/blkcrx/to...5.jpg[/IMG]

[IMG] http://home.themaestro.net/blkcrx/to...5.jpg[/IMG]






The turbo is this.
50LBS/min
Comp cover .70ar
Comp Wheel Trim 52 2.17 / 3.00
Turbine trim 90 2.11 / 2.22
Turbine Cover .82


What I have available to me in stock is a 600hp core turbo, GT40 part number 700177-0014

65LBS/min
Comp cover .70ar
Comp Wheel Trim 56 2.41 / 3.22
Turbine trim 90 2.16 / 2.36

Turbine Cover options, that we can machine to fit.
.63 Single Entry –T3
.82 Single Entry – T3
.70 split pulse – T3
.82 split pulse – T3

Picture of all 4 turbine options




picture of the split entry .70



Picture of the GT40 wheel in the .70 comp cover


Now the only reason we were thinking to go the .70 split entry was due to the fact currently were running a .82 on my engine which is a 1.6L engine and the car only wakes up once it hits 3rd and 4th gear, although a lot of that has to do with our launch I believe. I think we almost make full boost 26psi or so in first gear, rev’ing to 9000rpm can’t fully remember. We were thinking by decreasing the turbine cover size it would allow for a faster spool up making more power sooner and more power up top due to a larger core, but having spoken Geoff from full race this morning he suggesting to go with a .82 cover it thoughts my theory out the window.

Basically keeping the same exhaust size as what we have now, and increasing the intake side.

Sadly the largest core we can go to is the 65lb core currently unless we go none ball bearing. The reason for upgrading is of corse to decrease my ¼ mile time. Currently we have run an 11.60 at 129mph with the old turbo setup on a full daily driven full interior del sol but only have had 3 good launches


So who’s got some input ?


Regards James

lazerus

a turbo like that should put you in the 9's... no?

BLKCRX

a turbo like what.. hehe with which exhaust housing ?
and why ?

lazerus

i think with ANY turbocharger you choose, you will be very hard pressed for traction! I would probably suggest the same as geoff in this situation, and if you watch your boost and are not satisfied with the results in the lower gears, a wet nitrous shot would help out your low end, and possibly have it cut out with a pressure (hobbs type) switch..

ANY way you go, if you make close to 600 HP in a sol, with good traction and driver, you will be 10's all day long.

Brad

Justin Olson

I say go with the .82 a/r undivided housing as they are supposably more efficient at high rpms then the divided housings.

TheAutoboxer

.70.. duh

Bnjmn

Divided is only good if you build a manifold to take advantage of it, otherwise it is a restriction. The plus side about using a divided housing is that you can run a larger A/R because you'll get improved spool (Garrett GT37 has a 1.12 A/R).

DaveF

in my opinion. id go "biggie size" .82


stick a 2 step in there to help spool the turbo off of the line.


..that shop has way to many turbos..looks like turbo heaven..

BLKCRX

Yeah well currently we are using the .82 and all I was thinking is maybe we can make the turbo work harder by going smaller.. but looks like im wrong... way wrong !!! Wveryone is pointing to using the .82 on the 1.6L b16 81mm built engine...
b/w the place is turbo heaven look at this pic



Plenty of turbo's there... we have turbo shops on every corner almost in Australia.. just a pity there Nissan / Toyota / rotor freaks.. and not Honda freaks like us Honda-tech people...


Regard James

civictypenos

jesus man,you need to get rid of that **** on e bay,there probably10 k there in spare parts.

btw-this is my 1000th post

done

is gt40 a t3/t4? how much is that bad boy, and does it come with t3 vband housing... (exhaust) .82 a/r

vti2

Gt40 is much bigger than a T3/T04

BLKCRX

GT40 with a t3 .82 Exhaust it is.. hmmm now to get onto the Dyno and re Race !!!!


Regards James