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Boss 5.0 / 10.7:1 / Lysholm 3.3 / E85 build!!

Discussion in 'Engine/Tuning' started by skaarew04SVT, May 27, 2011.

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  1. 11Sec_Lx

    11Sec_Lx Well-Known Member Established Member

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    Erik, can you please give me a call or tell me when a good time to call is? I have a few questions. Thanks...
     
  2. Nadra

    Nadra Bisquits and mustard Established Member

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    Fantastic info :rockon:

    Do you know what the race weight of the car with you in it is?
     
  3. earico

    earico It's 4:20 somewhere... Premium Member Established Member

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    Ah good ole heatsoak...

    Nice 60' times!

    Back to heatsoak....I will get flamed for this but whatever....why do you guys love PD blowers so much? This car lays down 800+ RWHP but traps like a 650 RWHP car due to heatsoak. I see nothing wrong with a PD blower for 1/4 mile drag strip use only but most of us use our cars on the street more than the strip. If I nail the gas I want all the power available that the car is capable of. I personally think PD blowers are the worst form of forced induction for street use. Yes you can put a killer chiller on but that is just a bandaid for a bad design IMO. Sure other forms of FI have lag but lag is almost non existent if you are in the proper gear to begin with.
     
  4. raym5_0

    raym5_0 on 3 u go Established Member

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    ( compressed air temps ) assumming your referring to IAT2's..... IMO put a killer chiller / Industrial 12a/ Jabsco pump 29gpm./ larger under hood IC tank/ and insulate everything well... and start seeing IAT2's in the 80's.... even after engine @running coolant temp of 175 plus and heat soak of post WOT runs........instead of what many & you report 110 - 170* range.

    Granted you can use the trunk ICE box, to get same results....but who wants to carry 100lbs of ice around to play.
     
  5. stagedz

    stagedz Cobra Convert Established Member

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    Great power...can't wait to see what happens when you turn up the wick :)
     
  6. 04sleeper

    04sleeper Runs On "Liquid Gold" Staff Member Super Moderator

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    It has nothing to do with heatsoak and a Killer Chiller will not make the car any faster.
     
  7. spyder1337

    spyder1337 It's LEGIT Established Member

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    So if his IAT2's are above 150 to "162" and say they lower 30 degrees on the pass lowering them another 30-40 degrees isn't going to make the car any faster? Is this what you're saying by not adding a killer chiller to aid the car some?

    On another note, I noticed the numbers were STD and not SAE. A car like this driven right should be a 145 ish mph car if it weighs less than 4000 lbs with a driver mod. Lower 130's taking it "easy" is impressive and the et is pretty nice as well. 60's are there, this has a lot of potential. What was the DA if you know?
     
    Last edited: Sep 20, 2012
  8. 04sleeper

    04sleeper Runs On "Liquid Gold" Staff Member Super Moderator

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    Fist off, with the cam overlap the IAT2 reading is skewed. It fluctuates all over the place.

    Second, the IAT2 reads "Before" the injector so true temp can not be accounted for with the E85 fuel as it goes into the combustion chamber.

    Third, the tune was adjusted for this so it doesn't pull timing because of this.

    So do I feel the data is accurate? No.
     
  9. 11Sec_Lx

    11Sec_Lx Well-Known Member Established Member

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    For one thing it was my first trip to the track. Have you ever tried racing an 800+ rwhp cobra on 26" ET Streets? It's like wrestling a gorilla. My shifts weren't fast enough and I couldn't fully stay in it. I was in the lanes for nearly an hour before every pass and made no attempts to control heat other than occasionally opening the hood. I started the car every time it moved. Your turbo or centrifugal's get warm in a traffic jam as well. On the road, my compressed air temps are not an issue. On the dyno my pulls were maybe 10 minutes apart and there was no fan, no ice either. Nothing.
     
    Last edited: Oct 12, 2012
  10. 98 Saleen Cobra

    98 Saleen Cobra Authorized Vendor Authorized Vendor

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    Yea Centri's get hot sitting in traffic. Even with my GT500 C&R Heat exchanger lol.. No way around it..

    Lets not forget how heavy that car is.. There is A LOT of stuff that was added on this build that added weight here and there.. I'm sure it added up.. I'd be willing to bet that car is sitting close to 4k w/o a driver.. I could very well be wrong but I doubt it.. The MM Kmember aren't much lighter than stock, the added oil, accusump, Boss Block (heavier than a stock block), the 3.3L blower, etc etc.. You get the picture.
     
  11. AntiHeightPunk

    AntiHeightPunk New Member Established Member

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    turbo with meth ftw
    but dear lord high compression and e85 gives me a boner, when i get E85 here i shall build a high comp motor and 80mm turbo
     
  12. earico

    earico It's 4:20 somewhere... Premium Member Established Member

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    First...Erick's build was one of the sickest I have seen and you are one lucky SOB for having such an awesome car. Nothing but props.

    Secondly I hear you on turbos and centris getting heat soaked too but I promise you that they are not effected by it to the same magnitude a PD blower is. I've owned both.

    I just find it hard to believe your trap speed given the power you have. I would think that car would trap 140 granny shifting with 800+ on ET Streets. You have good 60' times so its not like the car was spinning all the way down the track. Correct? What was the DA when you ran?

    I don't care if the tune doesn't pull timing until later because you are on e85 either. Your IAT2 was over 160 before you took off. It was probably 180 at the end of the run! Hotter air contains less oxygen and will make less power period. With proper cooling I bet your car traps much higher. Heatsoak IMO.
     
  13. 04sleeper

    04sleeper Runs On "Liquid Gold" Staff Member Super Moderator

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    You obviously have a hard time with reading comprehension.
     
  14. earico

    earico It's 4:20 somewhere... Premium Member Established Member

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    I comprehend just fine. I simply ignored you because you are missing the point.

    I could care less about your cam overlap and IAT2 sensors readings being skewed. If they were skewed at the track then they were skewed on the dyno as well. So what. The main contributing factor that was different on the car from the day he dynoed was heat. Simply fact is the blower, case, rotors and intercooler were significantly hotter than when he dynoed. All of which robbed him of power. The car was heatsoaked and trapped significantly lower than it should have with the advertised dyno number. Par for the course with a PD blower that wasn't cooled down.
     
    Last edited: Sep 21, 2012
  15. 04sleeper

    04sleeper Runs On "Liquid Gold" Staff Member Super Moderator

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    Nevermind. Some people will never get it.
     
  16. earico

    earico It's 4:20 somewhere... Premium Member Established Member

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    I don't mine learning but you are going to have to explain in detail. I'm not just going to take your word for it because you tune and are a moderator. So explain why his car trapped like it was down at least 100 rwhp.
     
  17. 11Sec_Lx

    11Sec_Lx Well-Known Member Established Member

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    Erik (skaarew04svt), can you please give me a call or tell me when a good time to call is? I have a few questions. Thanks...
     
  18. 03Steve

    03Steve Active Member Established Member

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    IAT2 will decrease immediately when the throttle is opened. 162* will go down from the starting line. My cammed car, with 3.5" and 4.0" upper pullies will decrease from the starting line and hold a bit above ambient without ice.

    As far as the "down 100hp" comment, without more information it is tough to assess expected trap speed. I would assume though that the weight is on the high end. And the owner has stated that the driving was on the conservative end.

    If you have something better than a PD blower, come to the NMRA World Finals and prove it. There will be plenty of heatsoaked turds there awaiting their beating.
     
  19. earico

    earico It's 4:20 somewhere... Premium Member Established Member

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    I understand that IAT2s go down once underway because fresh near ambient air is let into the throttle body. Even my lil ole heaton does that. I think it's absurd to say that heat had nothing to do with his low trap speed. Fact remains he would have trapped better with proper cool down. If this weren't the case no one would be putting ice in their IC res and waiting 45 minutes between runs at the track. We all do it for a reason. No?

    As far as the NMRA finals boast I will quote what I said earlier. No reason to be butt hurt. "Back to heatsoak....I will get flamed for this but whatever....why do you guys love PD blowers so much? This car lays down 800+ RWHP but traps like a 650 RWHP car due to heatsoak. I see nothing wrong with a PD blower for 1/4 mile drag strip use only but most of us use our cars on the street more than the strip. If I nail the gas I want all the power available that the car is capable of. I personally think PD blowers are the worst form of forced induction for street use."
     
  20. 03cobra#694

    03cobra#694 Want to play a game? Staff Member Super Moderator

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    No offense, but Kevin and Steve are the wrong guys to be arguing with.
     
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