holset HE351cw

[benjimatt]

Hey i jwas thinking about getting a HE351cw. I was wondering if the bep housing could bolt up to this turbo. I was looking it up and I saw that it has an electronic wastegate thing that most people just plug up instead of trying to use it.

(This is not a vgt turbo that is HE351ve)

 

[benjimatt]

I didnt mean that it is supposed to spool like a 16g . I just thought it would spool faster.

 

[benjimatt]

Ok things seem to be working correctly. Boost holds at 17psi....

I went and got part of my intercooler pipe welded. So i'm not worrying about leaks from there.

Car is spooling faster and I like it . I put a picture of the block clearance that the revhard manifold gives. Revhard FTW!!!

Once I put the fuel pump in the car I will tune and take it to the dyno Then I can have some real statistics for you guys

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[benjimatt]

So I am installing my fuel pump and the removal was pretty easy. But the top hard line that is welded to the hanger got a little twisted. SO I am going to make everything 3/8ths instead of the stock size.

Well im not going to do everything on the hanger 3/8ths. Im not going to go all the way to the fuel rail just yet. This will be just a small step toward the future.

So I will just be using the 3/8 high pressure hose but what fitting can I use to make this work. I want like an inch or inch and a half to be on the inside. Ill put a hose from there to the fuel pump and it will be clamped down with good clamps.

on the top I want it to be 90 degrees so I can put a hose on the end of that to the hard line.

 

[benjimatt]

So base tune is almost complete. I'm a little lean in 5000 to 7000 range. lean as in 11.7: which isn't too lean buy my AFR is set at 11.0:1 I'm thinking about dropping the fuel map to 10.8:1 but I live in New Mexico. I really need to get a new knock sensor. Im throwing a code and all it ever says is 9 when I am on the gas at all. In vacuum or in boost.

I have been looking at my injector duty cycles. and at 17psi my highest duty cycle was at 59.9 % and that only happened once.

So I used my electronic 2-step boost controller and cranked the boost to 27 psi. WOW!!!! It feels great and really addicting. So I logged it to check my duty cycles again just to be safe and the highest duty cycle at WOT is 82.7% The average was in the mid to low 70%.

These Siemens 750cc injectors are pretty efficient I could probably go up to 30 or 32 before its really time to change the injectors. I have read that when the duty cycles are 80% to 90% its time to look for bigger

Oh and by the way I still need to rewire my 255 fuel pump :-( Its just kind of a pain on us 1g FWD folk.

 

[dsm-onster]

Good to hear. Do you have any logs? Hows the spool so far?

 

[benjimatt]

Yeah i have some logs but I dont really know how to upload them??

Well I did a compression test and it seems that two of my cylinders are lower than when I got the car. My compression is now 120-120-110-120

with the altitude conversion 5500ft = 0.853

my compression at sea level would be

140-140-129-140

So i'm kinda worried but not really stressing it right this second.

I just checked my spark plugs and I think they looks decent.... I'm not really 100 percent sure. I bought bpr7's at NAPA and I have some sea foam that i'm going to use next week when I buy some oil first.

Good news!!! People got me scared about making tons of power on 91 octane so Today I upgraded to e85 so I am now excited.

Tuning is weird. Right now I still have my Wideband set to gasoline so I can understand the readings.

My injectors are just at the max right....well average in the 80% duty cycle at WOT. By the way I am running super rich so this will change. I think i'm going to bump the FPR to 43 psi just until I purchase my bigger injectors.

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[benjimatt]

Hey guys some updates. Right now im looking for a -8 or 1/2" tap so if anyone knows where I can find one let me know please.

So one of my fittings and my walbro inline just came in. so now I have my golan filter, one fitting, and my inline walbro 255 fuel pump

Here is my list as of now of stuff I am going to need to install/just bought.

Modified left and right motor mounts
Welded front and rear motor mounts
various fittings
20ft stainless steel hose -8 an
Walbro inline 255 fuel pump
Golan fuel filter
1/2" tapped stock fuel rail
Tanabe GF210 Springs (may not install until I get adjustable struts)
100' header wrap (for intercooler pipe)
Black ceramic 1200 degree paint
Going to install my New NoN chewed up compressor (maybe)
Cut of second radiator cap off of radiator
Smaller battery
Looped coolant lines
Bosch/ford 1600cc injectors

 

[benjimatt]

YAY looks like I have enough ss lines to run it for my return also Smile

So its going to be-8 feed and -8 return

 

[benjimatt]

SO I just got the fitting welded on because getting it tapped would be 20 and welded 25. So I went with the welding. I did the rear motor mount which was pretty easy IMHO. I dont know why everyone complains about it. For me the front mount is killing me . I still dont know what to do

So I finished my fuel system and its great. -8 an feed and -8 an return. I put pressure in the fuel system today and I was leaking like crazy Fixed those leaks which were all from the fittings at the fuel filter which is now under the car with my inline fuel pump which is rewired with the in-tank fuel pump

I need to figure out some kind of shield I can put on the filter and pump because they are lower to the ground than I expected and ill get paronoid.

Tomorrow hopefully my exhaust wrap gets in and hopefully I can put on the front motor mount.

 

[benjimatt]

Unfortunately I am holding off on the 1600 injectors until I can get an FJO injector driver.

Yay no more idle surging .. I love having the isc and faiv blocked. It is pretty nice and I havent had any issues.

Also having a n/a throttle body is nice too. Now I can change my battery by just taking off a couple clamps. No more removing the elbow.

Fuel system is working out great. I have the 750cc injectors in running a base pressure of 50 psi. I'm trying to get 20 psi at 85%-90%, we will see what happens. I also finally rewired the fuel pump

The solid motor mounts are great but I think im going to get my left and right mounts welded also. I also dont feel any vibration like everyone says...

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[dsm-onster]

You don't feel any vibrations because you left and right mounts arn't welded . You don't really gain much by welding them anyway. Removing ALL the engine roll by welding up the front/rear roll stops did the most by far for me. It put all that work moving the motor to thw wheels, snallier response. And kep the motor from bumbling around in the engine bay, consistant contact patch for the front tires, helped my FWD traction.

I welded the driverside engine mount and the vibrations went up greatly and I really didn't get any more benefits. Or improve the benefits the solid rollstops gave.

AMS fuel pump test. You can leave the fuel pressure at 50psi and still be able to run up to 30psi of boost and have enough fuel flow for 100% idc with 830cc injectors using gasoline. So you could technically max out 750s at 100%IDC at 50psi base pressure (810cc) with your wally 255hp. Dont be afraid of more boost. You have enoug pump and injctor flow for 30psi.

I do this trick all the time for guys that come to me wanting more out of their dsm. You have to buy a pump upgrade to even get the most out of the stock 14b. So I put in a wally 255hp for $100 and get an AFPR for $150. And bump base pressure to 60psi so the 450s flow like 550s. The dead time of the 450s at high base pressure is still a bit better than 550s, so there's no large amounts of fuel I have to dial back into the maft or safc at idle to get them to idle good. And they didn't have to put another $300 into injectors when they are going to stick with the 14b. Same applies to the bigger injectors you have.

Good build. Keep up the progress!

 

[benjimatt]

yeah im probably going to have the fuel pressure at 55 psi and attempt to run 23 psi. We will just have to see what my idc's look like. I have a 255 intank and a 255 inline so I think my pumps should hold up.

 

[benjimatt]

wow my 750s are actually holding up to 25 psi. of course this is 75%-95% duty cycle. Actually my base pressure is 55 psi. So there you have it .

 

[benjimatt]

This is the frozen boost 600 hp air to water intercooler kit. I bought a 1000 GPH pump from harbor frieght for $20 because I didnt like the pump that was included. But I really do like this setup and so does the butt dyno

Im going to retune a little bit tomorrow and Ill let you guys know how my iat's look. I need to go ahead and get an iat gauge......

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[mkoz]

Question, where did you get that v-band flange for the exhaust side? Did you have to get it fabbed? I have the same turbo.