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Recommended 408ci compression

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Old Feb 28, 2020 | 09:51 AM
  #81  
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Originally Posted by HioSSilver
....Just a fyi.....if you start out faster na.....you will be faster boosted. Since I'm faster than yall na....where do you think that would land me boosted?
My guess is making motor milkshakes or 8 block windows.
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Old Feb 28, 2020 | 10:55 AM
  #82  
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Let's not forget the hilariousness of comparing a 500whp NA motor with that of a boosted one. The torque curve of the boosted motor owns the NA motor. Which is why it's faster. I'll happily take a 100lb weight penalty to add 100ftlbs of torque and a better curve.
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Old Feb 28, 2020 | 11:26 AM
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Originally Posted by ddnspider
Let's not forget the hilariousness of comparing a 500whp NA motor with that of a boosted one. The torque curve of the boosted motor owns the NA motor. Which is why it's faster. I'll happily take a 100lb weight penalty to add 100ftlbs of torque and a better curve.
Exactly, 5.3L on wastegate makes more torque then the $20k+ NA builds. Plus it's not hard to make a lightweight uncomplicated turbo setup that works perfectly.
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Old Feb 28, 2020 | 11:35 AM
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Again.....just like in this thread you over look the details. That 100lb will cause a lesser balanced car. A 5.7 set up to make 500whp also isn't gonna rev very far .........or it's gonna make way more than 500whp. By contrast a 500whp na 5.7 will likely rev to 7500 pretty easily and be able to carry way more gear. Thus reducing the advantage in torque you think your gonna have in a not great power curve.

You simply have no ****** clue dbuttsniper.....like none. It's why all your **** is a turd. Look at what you just claimed to be better...heavier car with worse balance, low rpm, tall gear, more complex, harder to tune, harder to work on. For that power level that guy was wanting na all day in a light weight car. But in the end why are you dumbasses bring up THAT THREAD IN THIS THREAD hhhhmmmmm

But that was another great example of erryone in this thread over looking the fact that op has access to better fuel in his country and making dumbass **** responses.
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Old Feb 28, 2020 | 11:37 AM
  #85  
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Originally Posted by SLOW SEDAN
Exactly, 5.3L on wastegate makes more torque then the $20k+ NA builds. Plus it's not hard to make a lightweight uncomplicated turbo setup that works perfectly.
please splain what a jy 5.3 has do with a dude in Taiwan wanting a damn 408. I really want to see this explanation. You're as dumb as the other 3....probably worse.
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Old Feb 28, 2020 | 11:42 AM
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Originally Posted by HioSSilver
But that was another great example of erryone in this thread over looking the fact that op has access to better fuel in his country and making dumbass **** responses.
The 98 RON octane that other countries have is equal to our 93, which has an RON of 98 and an MON of 88, which averages out to 93 octane.
We are the Dumbases?
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Old Feb 28, 2020 | 11:57 AM
  #87  
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Originally Posted by AwesomeAuto
The 98 RON octane that other countries have is equal to our 93, which has an RON of 98 and an MON of 88, which averages out to 93 octane.
We are the Dumbases?
I hate to quote myself but....POST4 This is what we call waiting to talk instead of listening lolol.
Originally Posted by ddnspider
Is that 98RON, i.e. 93 octane US?
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Old Feb 28, 2020 | 12:18 PM
  #88  
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Originally Posted by AwesomeAuto
The 98 RON octane that other countries have is equal to our 93, which has an RON of 98 and an MON of 88, which averages out to 93 octane.
We are the Dumbases?
lol Hiowned!

Originally Posted by HioSSilver
please splain what a jy 5.3 has do with a dude in Taiwan wanting a damn 408. I really want to see this explanation. You're as dumb as the other 3....probably worse.
please splain why you are in the forced induction section when you clearly don't have a FI LS. Or stay and keep getting your *** handed to you, it makes great entertainment for the rest of us. The OP clearly said he was planning to turbo his 408, perhaps you should read. So obviously his 408 should have more torque then a 5.3 which has more torque then any engine you've owned.
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Old Feb 28, 2020 | 02:44 PM
  #89  
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Originally Posted by AwesomeAuto
The 98 RON octane that other countries have is equal to our 93, which has an RON of 98 and an MON of 88, which averages out to 93 octane.
We are the Dumbases?
Actually 100 octane is available in asia. They have lots of small engines making good power.

Originally Posted by ddnspider
I hate to quote myself but....POST4 This is what we call waiting to talk instead of listening lolol.
Yup....looks like you did it.

Originally Posted by SLOW SEDAN
lol Hiowned!



please splain why you are in the forced induction section when you clearly don't have a FI LS. Or stay and keep getting your *** handed to you, it makes great entertainment for the rest of us. The OP clearly said he was planning to turbo his 408, perhaps you should read. So obviously his 408 should have more torque then a 5.3 which has more torque then any engine you've owned.
I don't know why having more tq than anything i own has anything to do with op thread.......kinda like your 5.3.

Fact is higher compression increases thermal efficiency. It would no doubt make a engine jump up better and that would lead to getting into boost faster. With out doubt part throttle response would be better.
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Old Feb 29, 2020 | 09:53 AM
  #90  
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Originally Posted by HioSSilver
Fact is higher compression increases thermal efficiency. It would no doubt make a engine jump up better and that would lead to getting into boost faster. With out doubt part throttle response would be better.
You sound more and more like kingtal0n everyday.
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Old Feb 29, 2020 | 10:16 AM
  #91  
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Originally Posted by SLOW SEDAN
You sound more and more like kingtal0n everyday.
She built a FI motor to 8.5 comp but thinks 12.0 comp is legit for 87 octane. lol
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Old Feb 29, 2020 | 11:11 AM
  #92  
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Originally Posted by SLOW SEDAN
You sound more and more like kingtal0n everyday.
You sound like a moron.

Originally Posted by islander033
She built a FI motor to 8.5 comp but thinks 12.0 comp is legit for 87 octane. lol
Me building a engine back to stock vs someone who is not.

I guess you're the only one that thinks 87 and 12:1 go together since you posted it.
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Old Feb 29, 2020 | 11:15 AM
  #93  
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Originally Posted by AwesomeAuto
The 98 RON octane that other countries have is equal to our 93, which has an RON of 98 and an MON of 88, which averages out to 93 octane.
We are the Dumbases?
yes.
you are right.


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Old Feb 29, 2020 | 12:56 PM
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So back to the topic at hand. Is the project car going to be a full time drag car, street/strip car or a high HP dyno car? On 93Octane/98Ron you'll need a Meth kit for safety as mentioned here. If this is a street/strip car, you probably don't want to spend a ton of money needed to go for a max effort engine build (or two of them depending on who is doing the tuning ). So something in the 9.5 to 10:1 is manageable and you can lean on the turbo/turbos to do the work with proper tuning an timing. The 1200hp target is an aggressive goal though.

My point of reference is a built 402 LS2 block, AFR Heads and a 9.5:1 compression with T-400 trans and ford 9" rear. The turbo setup was a TTI Race kit with the 80mm Turbonetics turbo and air-to-water inter-cooler at 19lbs boost and a fair amount of back pressure lol. It ran on 93 Octane with Snow meth kit with dual nozzles and routinely made 9.4s passes at 150 mph. Car never made it to the dyno for tuning (track and freeway pulls) but the HP math is pretty decent for a full interior car making those passes with stock wheels/snow tires (tread lasted longer on the street with the pushing from 9" rear on clover leave freeway ramps) up front. So the weight reduction was just the AC delete, power steering delete, strange brakes and a bullet muffler before the rear axle. To put it in perspective, that's stock PCM with 60lbs injectors and HP turners starting in 2007-2010 when E85 wasn't a thing.

The car has be sitting like a "barn find" since 2010. New build is coming with the same engine and a lot more air.

With the newer technology, tougher tested parts and the knowledge of what's come before, the limit to what you can build is the dollars in your pocket.

Last edited by 2001-WS6; Feb 29, 2020 at 01:51 PM.
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Old Feb 29, 2020 | 02:38 PM
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Originally Posted by po feng
yes.
you are right.
cool...we got that figured out. Back it off to 11:1 then. Either way at the power you want you're better off avoiding just pump gas. It's not that it won't do it.....it's that it might decide not to one day because of a bad tank of fuel. Sticking to 900ish would be safe imo tho.

Remember the more you make na the easier it will be to make more boosted.

Last edited by HioSSilver; Feb 29, 2020 at 02:44 PM.
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Old Mar 1, 2020 | 01:47 PM
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[QUOTE = 2001-WS6; 20216706]所以回到當前的話題。項目車將是專職牽引車,街道/帶狀車還是高HP測功車?在93Octane / 98Ron上,您需要一個Meth套件來確保安全,如此處所述。如果這是街車/長條車,您可能不想花費大量金錢來製造最大努力引擎(或者其中兩個,這取決於誰在進行調整)。因此,在 9.5到10:1之間的某些內容是可管理的,您可以依靠渦輪/渦輪增壓器來進行適當調整定時的工作。1200hp的目標雖然是一個進取的目標。

我的參考點是內置的402 LS2缸體,AFR噴頭和9.5:1壓縮比,帶T-400變速箱和福特9英寸後輪。渦輪增壓裝置是帶有80mm Turbonetics渦輪增壓和空水兩用裝置的TTI Race kit -冷卻器在19磅的助力和相當大的背壓下大聲笑。它以93辛烷值運行,帶有帶雙噴嘴的Snow meth工具包,通常以150 mph的速度通過9.4s。汽車從未到達過dyno進行調校(履帶和高速公路拉力) ),但HP算術對於一輛完整的內飾車來說相當不錯,因為這些車可以通過備用車輪/雪地輪胎(在三葉草離開高速公路的坡道上從9英寸後部向前推動,胎面在街上行駛的時間更長)。因此減輕的重 量僅僅是後橋前的AC刪除,動力轉向刪除,奇怪的製動器和子彈消聲器。放眼來看,那是

自2010年以來,這輛車一直像“穀倉發現者”一樣坐著。新型發動機採用相同的發動機,空氣量 更大。

借助更新的技術,經過更嚴格測試的零件以及對以前產品的了解,製造出的東西的極限就是口袋裡的 錢。[/引用]

Hello sir.
I want to use it on the street/strip car.

1200hp is the goal, hoping to achieve it.

Because it is used street/strip car, there are budget restrictions.

After all, this is an interest,
and the family still needs to take care.
I would use 68~69mm twin turbo.

Compression will select 10.0:1 (
Or can it be recommended? Because Taiwan's 98 octane number is the United States' 93 new alkane number. So I hesitated to choose.)

Can you recommend a CNC heads? Or are there other recommendations? Because of the limited budget, there is little choice.

I have a message for you, check it out.

Thank you very much for your reply.

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Old Mar 1, 2020 | 07:43 PM
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You really don't need high end heads to make that power if you let the boost do the work. It will make the power on less boost but if you look at what some of the other members in here are doing on stock cylinder heads its not required. What is your budget for cylinder heads?
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Old Mar 10, 2020 | 07:09 AM
  #98  
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[QUOTE = ddnspider; 20217157]如果讓boost發揮作用,您真的不需要高端的音響頭就能發揮這種力量。它將使動力降低,但是如果您查看此 處的其他一些成員在備用氣缸蓋上所做的事情,則不需要這樣做。什麼是你的預算缸蓋?[/ QUOTE]

If use 10.0:1compression,
Which works well with cnc
transplant 243 or 823?
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Old Mar 10, 2020 | 07:27 AM
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Originally Posted by po feng
[QUOTE = ddnspider; 20217157]如果讓boost發揮作用,您真的不需要高端的音響頭就能發揮這種力量。它將使動力降低,但是如果您查看此 處的其他一些成員在備用氣缸蓋上所做的事情,則不需要這樣做。什麼是你的預算缸蓋?[/ QUOTE]

If use 10.0:1compression,
Which works well with cnc
transplant 243 or 823?
If you have the bore size and are ok with an intake an fuel rails I'd go 823.
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Old Mar 10, 2020 | 12:09 PM
  #100  
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[QUOTE = ddnspider;20220654。如果您有孔的大小和確定是與進氣管的燃料軌我會去823 [/ QUOTE]

我要使用408ci Turbo。93fuel

把戲流235好嗎?823好?


Last edited by po feng; Mar 10, 2020 at 12:17 PM. Reason: gfd
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