TheSamba.com :: View topic - -BUILDING the EFI Turbo- ~head Q's~

Tue Nov 27, 2007 12:12 pm

alright ive started to really put together my ghia, ive got new front seats on the way, and im working my way back to the engine. -The tranny is already set-up, its the "super street" style.3.88 R&P -stage 2 kennedy clutch..cant remember what disc but it grabs.-brakes, steering, and suspension are set as well.... :P and on to the engine.. --------shot-peened VW forged crankVW forged shot-peened rods94 mahles, with total seal ringsscat lube-o-lobe lifterschromoly pushrodssolid rocker shafts with stock rockers ( for now )engle 110 cam40 x 35.5 044 headshi-rev heavy-duty springsmatch ported8mm head studs30mm oil pumptype 4 larger oil cooler w/ modified fan shroud to accomadate size...8.1.1 COMP ratio009 dist with RED coil and compu-fire--------if i missed anything..let me know!alright, so i know i need to change the cam, but do i need to change to COMP ratio?i dont plan on running alot of boost.... its my REAL car... i drive this everyday!im reasearching all the different types of manifolds. i dont want one thats all in the engine bay, i want it to run cool. i was thinking of doing a singe-carb blow-thru. using the manifold where the turbo is BELOW the rear apron....keep all that heat OUT! but this is just an idea.. im totaly open to all opinions. :wink:

Tue Nov 27, 2007 12:37 pm

Stock cam won't do it any justice...bite the bullet an do it right.Lots of good turbo worthy cams out there that will give you excellent results.

Tue Nov 27, 2007 12:42 pm

dog_jr911 wrote: alright, so i know i need to change the cam,

The Noof wrote: Stock cam won't do it any justice...bite the bullet an do it right.Lots of good turbo worthy cams out there that will give you excellent results.

i plan on changing the cam...whats the point in not doing it? totally half-assed.
and its not a stock cam..... :?

and the type of cam depends on the power range of the motor right? i dont want to push it past 5k RPM, i donk know what the internals could hold up too.... so a cam that produces power in the "lower" range would be best, correct?

im also looking to know what size tubing i need to use. header size ETC.

Tue Nov 27, 2007 2:33 pm

I'm building a mildish 2276 turbo and I went with an AJ sims LBC2 cam. have you checked them out? you might do well with their level one or 2 cam. I have similar heads and I'm using 1.5" tubing. 1.625" will slow down the exhaust velocity too much on a milder motor.

Tue Nov 27, 2007 2:51 pm

juki48 wrote: I'm building a mildish 2276 turbo and I went with an AJ sims LBC2 cam. have you checked them out? you might do well with their level one or 2 cam. I have similar heads and I'm using 1.5" tubing. 1.625" will slow down the exhaust velocity too much on a milder motor.

thanks!

ill be buying alot of U-bends and flanges to make it. it really beats the 350+ for a manifold...

well, with the style that sits below the apron, is there any problems with rain or debris? the turbo is sucking air from the outside....

and im really looking for some guidance as to what type of turbo ill be needing to get for my size motor. i dont want to have to wait for it to spool up. this setup will be perfect!

Tue Nov 27, 2007 5:11 pm

dog_jr911 wrote: I'm really looking for some guidance as to what type of turbo ill be needing to get for my size motor. i dont want to have to wait for it to spool up. this setup will be perfect!

If you want quick spool time, you want a disco potato. Should be a good match for a 1915.

Tue Nov 27, 2007 5:23 pm

ok....so i cant google "disco potato" :lol:

will it work for blow thru and draw thru or just one?

Tue Nov 27, 2007 5:31 pm

I am thinking of building a turbo set up. I have just about the same set up you do. Here is what I was thinking. A turbo set up off of an 80's Dodge Daytona or Shelby. Then running an SU carb from a Datsun 240 or whatever they came on. How does that sound?

Tue Nov 27, 2007 6:34 pm

i like the "tried and true" setups.

with my own modifications...that is!

Tue Nov 27, 2007 6:39 pm

dog_jr911 wrote: i like the "tried and true" setups.

with my own modifications...that is!

Its been done before. Super simple and reliable. :wink:

Tue Nov 27, 2007 6:49 pm

so thats just the "turbo" right? what manifold style is used? wheres the carb sit at?

i just got done doing some cooling system test.... i went and dragged around for about 30 min. shifting at 5500 RPM. after pulling in and putting in the thermometer.... i recieved a temp of almost 200*

so the oil cooling system is working wonders. yes... the temp gauge touches the oil. it maybe had 30 seconds at a low RPM to cool. dipstick was cool enough to easily grab, and im sensitive to heat.

so my cooling system can handle the turbo. maybe i can run a draw-thru setup in the enginebay.

tips or advice appreciated.

Tue Nov 27, 2007 6:58 pm

It is on one of my buddies bug. The carb sits before the turbo, and he fabbed a fiberglass (bubble) on the decklid. The lid closes as well. He is pusing 10#'s of boost and gets 28 mpg's. It goes really good for a daily driver. No problems as of yet and has been running for quite awhile now. No exhaust just a pipe that exits on one of the factory exhaust holes, sounds like a rotary motor. He is currently putting a muffler on to see how that is.

Tue Nov 27, 2007 7:04 pm

is there any chance that you could get a few pictures of how the setup looks?

im assuming its the typical manifold with a flange for that specific turbo. down to a t-pipe and into the heads.

i will be running a exhaust on it....its neccesay!

Tue Nov 27, 2007 7:13 pm

dog_jr911 wrote: is there any chance that you could get a few pictures of how the setup looks?

im assuming its the typical manifold with a flange for that specific turbo. down to a t-pipe and into the heads.

i will be running a exhaust on it....its neccesay!

Ya, I can get some pics this fri. He uses the stock dp intake manifolds. Yes, it is the turbo set up from that car. He is using the 1-1/2 carb size he is going to bump up to a 2 inch throat carb. Actually it isnt really that loud except inside the car at cruising speed down the freeway. I will be doing a build of my own here shortly. You have all the right parts so far. He has a 1915 as well.

Tue Nov 27, 2007 8:45 pm

A W-110 or a W-100 would work well for your motor. Keep the cam on the milder side and let the turbo do the work. Let you valve trane live.
With such a mild cam choice, it's not that big of a deal to use a "turbo" cam.
With a "draw thru" style setup, you will need to install a Carbon Seal in your turbo if it doesn't already have one. Check to see. If a carbon seal is not available for your turbo, then you may have a problem on your hands.

Tue Nov 27, 2007 10:09 pm

I would dump the total seal rings and use that money for a good mallory unilite , then spring for a boost retard box with map. about 300$ It will be so much better than a 009 with anything.

you need a garrett t3, 42ar x48ar. It is perfect for a 1914. fast spooling easy boot and it has a carbon seal... I have one for sale too.. :lol: will give you a deal. I am not joking about the turbo either , it is good for that size. I had it on my 2006 and it was just a little small , had lots of boost but was reaching it choke off point I think.
get a tcs120 , it is not a high revving cam 5500 . if you want more rpm's go 130 or go to another brand.. I use a tcs 120 with 1.25:1 rockers and it has a great mid power. this is where you blow the doors off everyone.

Also there is nothing special about the pro street trans, I have busted 3. in my glass buggy. so be careful. don't dump it.

Wed Nov 28, 2007 10:34 am

it should be noted that my engine is already buildt and running...

Wed Nov 28, 2007 11:00 am

Your cam :? not the best choice but it will work.
The head studs will need to be chromoly, thats a must have.
Compression ratio will be ok for what you are doing.
Did you use Teflon buttons on the wrist pins? I would put them in if you did not already.
CW crank is a huge bonus.
8 dowel crank is a must have also.
Have fun. :D

Wed Nov 28, 2007 11:11 am

i plan on changing the cam...

Wed Nov 28, 2007 12:55 pm

A 110 cam will be fine. You said you wanted fast spoolup, that's why I recommended the GT series turbo. If you can't afford one/can't find one, a T-3 will work, but you'll have a little more lag than with the GT series. An MSD boost retard box (6462 or equiv) will benefit you as well, no matter what dizzy you end up with.