Max safe boost? [Merged 10-6]

[Turbolaser]

Is it safe to do the boost contol solenoid mod on a stock 1G?

 

[LandoAWD]

Holy shit. It can't be...

 

[1gDSM4g63]

Yup, it's unbelievable!!

I know this is not real big news, but after a frustrating racing season for me, this was a fun way to end the year. I hurt my race motor at the beginning of October ( 2-3-2 mis-shift ) and did not want to end the season like that. I still had my stock, original short block " retired " on a engine stand in the garage. With the help of a couple of buddies, we pulled the race motor, swapped everything onto the stock short block and re-installed it in the car. A BIG thank you to Greg Joubert ( fellow NABR member ) and Doug Elfman who helped me get the car done. I went to the track Friday night and ran:

10.60@132 ( missed 4th )
10.56@135
[email protected]

The block is the original one from my car, has been raced for about 11 seasons ( was pulled two years ago for a race motor). It has 600+ runs on it, multiple low 11 second runs and 15-20 ten second runs. I honestly think the car could low 10's or possibly a high 9 with more boost and a better 60'. Car weight with driver was 2996, weighed Friday.

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[LandoAWD]

Sorry for the confusion..."it can't be" bwhite.

 

[bwhite]

Well, still im going to try my hardest to do this or come close as possible. You can't discourage me. I won't stop .

P.S. I believe he has run faster than those posted times by 1gdsm4g63. I thought it was like 10.12.

 

[90gsx_turbo]

i have a 90 gsx awd turbo and what psi can i run on my stock car which actually might not be stock ### see a friend told me i have aftermarket injectors and i bigger TB

 

[the_mork]

Without knowing the injector size as well as if the injectors are properly tuned run only barely above stock boost. The aftermarket throttle body will have little effect on what is safe and what is not. You can post pictures of the injectors and I would suggest removing your ecu and taking a picture of the interior of its case.

~14psi as shown on a good aftermarket boost gauge is likely safe but you'll need a logger to really know what is going on inside your car.

 

[90gsx_turbo]

ok i'll take pics tommoro and post them. and is it easy to remove the ecu

 

[the_mork]

15 minute job that is a good thing to learn to do.

 

[97-gst]

alright so heres the deal... ive got a rebuilt stock internal engine and im running a evo III big 16g... my supporting mods are 1050cc injectors, 255 pump, afpr, tuning with dsmlink v3 lite... I gotta guy that wants to run me at the track and right now im running 22 psi, the guy im running has a 04 f-250 with an aurora 4000 turbo on it plus he's spraying so i figure to be able to keep up with him i will need to up my boost... how much boost should i run with this turbo on my stock internals if i tune so there is little knock? is 30 psi too much?

 

[fran_drivertsi]

30 psi on e85 only with good metal headgasket and ARP headstuds.
Pump gas - no more than 20psi or... BOOOOOOM!!!

 

[AK Maniak]

Your already pushing it with 22psi. I wouldn't risk upping it anymore on pump

 

[Imback]

I was able to run 23-24 on pump. Are you tuning this yourself?

 

[97-gst]

yea im tuning it myself... see the thing is e85 isnt available where i live so basically i should just leave it at 22 or maybe try 24 psi and thats it? i really dont wanna detonate anything

 

[AK Maniak]

Well just log it and see how it runs and then go from there

oh and it says the aurora 4000 kit is good for about 550hp so it should be a pretty close race considering how much weight he has on you.

 

[97-gst]

alright thanks man, and ill let you know how it goes... i think that truck weighs 8000 pounds

 

[97-gst]

i was thinking.... what if i drop my boost down to around 16-18 psi and then advance my timing alot? would that be a more effective way of getting more power than just upping the boost?

 

[tstkl]

no,..............



everything in balance young grass hopper

 

[boostforfun]

Just for reference, my 07 Cummins quad cab 2wd dually with a full tank of gas was just over 7k pounds.

I raced an 04 f350 powerstroke single cab 4x4 with a 150hp chip, exhaust, and other goodies on it (no turbo upgrade) with my 02 Mustang GT (subframes, control arms, K&N FIPK, and cat back). That car was a low 14,maaaybe high 13 car. He took me out of the hole, but I passed him shifting into 3rd and pulled on him hard from there on.

 

[Kaotic_red]

If your tuning it yourself then your log will determine things better than any of us could. We could just give you a "general" idea. Play with the tune and determine that yourself.

 

[burkgonzo]

Diesel truck racing FTL!

 

[unisonicz]

Diesel truck racing FTL!

I have seen some wicked fast Diesel Trucks

 

[TheMitsuGS-T]

^^ Agreed! I've Been smoked completely out by my buddy's Cummins while i was cruising at 120. It was so black I had to pull over because i couldn't see . Anyway to the op I would leave the boost where it is and hope for the win or just take the loss... There's always next time no use in blowing your motor up over something that little. But that's just my opinion take it how you will.

 

[toofast82]

Diesel truck racing FTL!

Yeah that's a pretty ignorant statement.
Newer Ford's run mid/high 12s with basically just a tune and can tow 6+ DSMs around .
I've seen Duramax and Cummins as well running high 10s-12s all day in true street/daily driver trim
Hell I seen a lawn care truck taking out everything from swapped civics to lt1 trans ams on nitrous one night out.

 

[sexystover]

you can run somewhere around 25-27psi on pump with conservative timing with headstuds and a headgasket, i was running 22psi with headstuds on pump tuning with just an safc on my evo3 setup

 

[nek]

I wouldnt say that 20 psi is max on pump. Plenty of people run 22 psi and there are a few running 24. I agree that dsmlink should be able to tell you better then us though.