Author Topic: um im thinkin yes to this (Read 47987 times)

lord_verminaard · « **Reply #45 on:** July 07, 2006, 08:43:36 am »

Quote from: A2TD

As for the JH motors, most guys swap the ABA heads onto them so they can get an 8.5:1 compression ratio, ideal for a turbo gas motor.

Sorry guys, one more.

Actually the JH engine already has an 8.5 to 1 compression ratio.

Anyway.........

You guys have got me all excited now.... I almost bought an HY30 on ebay just yesterday. I guess I need to get the damn engine first, huh?

Brendan
84 Scirocco 8v
00 Camaro L36 M49

A2TD · « **Reply #46 on:** July 07, 2006, 03:45:36 pm »

Quote from: lord_verminaard

Quote from: A2TD

As for the JH motors, most guys swap the ABA heads onto them so they can get an 8.5:1 compression ratio, ideal for a turbo gas motor.

Sorry guys, one more. Actually the JH engine already has an 8.5 to 1 compression ratio.

Anyway.........

You guys have got me all excited now.... I almost bought an HY30 on ebay just yesterday. I guess I need to get the damn engine first, huh?

Brendan
84 Scirocco 8v
00 Camaro L36 M49

Yes I know it's already 8.5:1, my point was people who want power out of a JH use the ABA head, as it flows way better than a JH head.

935racer · « **Reply #47 on:** July 08, 2006, 08:08:43 pm »

It all comes down to the headwork, the valves, cams, valve springs, manifolds etc, thats what is going to determine how quick the turbos spool up, because we have plenty of displacement, but unfortunately a limited rev range. I know everyone says headwork is the last place to put money for a performance turbo diesel, but its the first place I go on a serious build and its where the most time is invested, and it makes all the difference in making an EFFECIENT and clean buring, powerful, smoke free diesel.

hillfolk'r · « **Reply #48 on:** July 09, 2006, 01:55:55 am »

i got one thing (wella couple)for you goys to think about,and pick apart

ihad this same injector pump on my old 1.6td jetta
you idi guys know the power band is like from 3000 to 5000 aprox,right?
now with this same pump,and the old idi td exhaust manifold+the garrett,or kkk td turbo,
its power is all from like 2000 to 4000
i believe this is just the inherent designs between idi+tdi
yea we could pick apart displacement+ manifolds+ stiuff
im really onthe sauce tonite,so this is just a thought
hey rabbittree ya gonna be home tomorrow(whoops today,remember,sauce)
ill give ya a call if so....

vwmike · « **Reply #49 on:** July 09, 2006, 04:28:10 am »

Quote from: A2TD

Yes I know it's already 8.5:1, my point was people who want power out of a JH use the ABA head, as it flows way better than a JH head.

Better, yes...as for how much better it is difficult to say. Most of the flow improvement in the ABA is from the 7mm valve stems (8mm in the counterlfow head). Those valve guides and valves can be swapped into the counterflow head anyways. Really, I think the benefits of the crossflow head are more in the packaging. A gas engine has a much larger intake manifold than a TD and it is quite difficult to get to to the turbo with the intake in the way and since heat rises the intake manifold gets to soak up the heat off of the turbo. I can post a picture of the engine in my Rabbit if you want....it's very difficult to work on at times.

therabbittree · « **Reply #50 on:** July 09, 2006, 05:02:22 am »

yupper i will be around some time i worktill 11 am then family bbq in suffern..i will be artound at night ..then off for the week..i hope to finish my turbo swapper roo this weerek since i'm off..
later
deo
\x/ hillfolk!

therabbittree · « **Reply #51 on:** July 17, 2006, 03:42:15 pm »

well its on finished it welll not 100% finished butr enough to drive to waterfest and back..it runs good...it pulls VERY VERY hard in th etop of teh rpm range..you see no boost tunless you really want it...which on a tdi is ok as you have abutt load of naturally aspirated torqu any how..but the top is very nice i have no tach hooked up yet so itsprobably 3000 rpm before its lit but i swa 30 psi and it sounds liek a jet...ha..i am interested in taht 6cm mystery housing if am one has teh info or price and what machining is needed let me know..i disabled the wastegate and stillonly saw 30 psi max right now....blake has some pics .. it is drivasble and not to bad ..on teh highway it goes awesome 75 mph and man 95 100mph in a blink...no time
later
deo
\x/ hillfolk!
ps my clutch is smoiked though doesn't slip around town or highway i think but racing i was inhaleing a large doese on every pass up throught the shifter haha

DVST8R · « **Reply #52 on:** July 17, 2006, 05:12:20 pm »

Figures when I am not looking for it I always find it and when I am I can't find it anywhere.

The two place's I would try off the top of my head are http://www.httturbo.com and
http://www.bullseyepower.com/

I know I have seen a pic of the housing on the net, but i can't locate it for the life of me. :roll:

935racer · « **Reply #53 on:** July 17, 2006, 06:55:53 pm »

Quote from: therabbittree

well its on finished it welll not 100% finished butr enough to drive to waterfest and back..it runs good...it pulls VERY VERY hard in th etop of teh rpm range..you see no boost tunless you really want it...which on a tdi is ok as you have abutt load of naturally aspirated torqu any how..but the top is very nice i have no tach hooked up yet so itsprobably 3000 rpm before its lit but i swa 30 psi and it sounds liek a jet...ha..i am interested in taht 6cm mystery housing if am one has teh info or price and what machining is needed let me know..i disabled the wastegate and stillonly saw 30 psi max right now....blake has some pics .. it is drivasble and not to bad ..on teh highway it goes awesome 75 mph and man 95 100mph in a blink...no time
later
deo
\x/ hillfolk!
ps my clutch is smoiked though doesn't slip around town or highway i think but racing i was inhaleing a large doese on every pass up throught the shifter haha

\\
\\
\
Sounds like you need a custom cam to get that turbo spoolin sooner and one of the those 4 puck disks blake has

DVST8R · « **Reply #54 on:** July 17, 2006, 07:47:52 pm »

Also I found this in my travels, it is listed as a compressor map for the HY-35

Now it has somemarks over it and isn't real clear, but should give a basic idea, to those who like to crunch numbers. :wink:

I think the lines, are for a '84 - '89 Nissan 300zx turbo motor "vg30et"...

DVST8R · « **Reply #55 on:** July 17, 2006, 07:53:24 pm »

Now mabey some one wants to get really creative and clean off all of the VG30ET marks, and do a map for a 1.6TD and another for 1.9TD.

A2TD, you like to run the numbers right...

:wink:

Benjamin · « **Reply #56 on:** July 18, 2006, 03:31:57 am »

i een dont know how to read a turbomap

:oops:

Greetz, Benjamin

A2TD · « **Reply #57 on:** July 18, 2006, 04:22:37 pm »

Wow the efficiency on this turbo is horrible :shock:

This turbo is way too big to work on a TD/TDI. The map resembles that of a GT37, A 2.8 VR6 would have a hard time spooling this thing up. I think the ideal compressor set up for a 1.9TD/TDI would be off the GT28R, slap a smaller exhaust housing on, and you've got a turbo that can move a hell of alot of air, whilst mainting great deal of efficiency.

The GT37map http://www.atpturbo.com/root/maps/gt37.htm

therabbittree · « **Reply #58 on:** July 19, 2006, 05:38:51 am »

what makes it so in efficient?.i don't know how to read a turbo map.. as long as it blows cool air 30 - 50 psi im cool with it...
later
deo

QuickTD · « **Reply #59 on:** July 19, 2006, 10:24:38 am »

Quote

Wow the efficiency on this turbo is horrible

Dont you mean fantastic? The 79% peak efficeincy island is small, but the 77% island is huge, far better than anything from garret. Size might be an issue though, as long as it doesn't make much boost before 6000rpm it should be OK...

Author Topic: um im thinkin yes to this (Read 47987 times)

A2TD

935racer

935racer

A2TD