93formto98T/A

iTrader: (28)

Your engine's weakness in regards to FI has very little to do with the internals and ALOT to do with the cylinder wall thickness or lack thereof in addition to piston height or lack thereof.

No doubt it will work with a small turbo and prob be ok for awhile. But you'll get used to the power soon - we all do, and get greedy then turn up the boost and BOOM, should have built it right beforehand.

Keep in mind many of us here have extensive experience over many years with FI builds. We're not just saying these things to shoot you down. We've been there before ourselves...

koolrayz

iTrader: (26)

Oh for the love of god there was a 50 page thread were a guy took this motor and put some boost on it and busted out the cylinder walls. Do a search and you cant miss it. it was also on the bullet. Boost it if you want, please be sure to post the aftermath picture. Make sure you blame it all on GM for making a shitty product like the last guy that tried this.

koolrayz

iTrader: (26)

https://ls1tech.com/forums/forced-in...-shell-12.html

need2speed94

I think that's a good turbo choice, I think a 454 will max it out very easily though. But from what you said maybe that's better than running a larger turbo on low boost and having more lag. I say go for that turbo but maybe switch up the hot side?

BOBS99SS

iTrader: (2)

I agree make sure to post a carnage thread after lol

slippi84

iTrader: (4)

You guys really are epic fail at so many things first and foremost ASSUMING. One assuming that I'm some riced out beginner who thinks all you have to do is turn up the wick make more power and go fast. I come from a turbo background and prob have more turbo experience in other platforms than most people if not all in this thread. The difference is every platform is different due to cam head and overall engine effeciency. Like on a dsm which is where I spent most of my time learning FIRST HAND about boost running 20psi on the stock block is fine but on a Honda because of the engine's design you can't get away with as much. Second you all FAIL at reading comprehension or just are flat out LAZY. In my very first post I referenced the guy who boosted his lsx454 with a F1 and blew it up's thread. Hell if you weren't so lazy as to just find it and actually read threw the thread I posted in there 2 or 3 times so OBVIOUSLY I have read and understand what happened. Difference between us is I actually traced it back to his original build thread on the Camaro forum. If you do a little research you will find a dyno sheet from his build on a totally separate day then when he claims the setup got on the dyno and popped right away pretty much. He went put the setup together ran it at 16psi made like 900whp or something like that wasn't satisfied on a different day went and upgraded his fuel system and gave it another whirl WITH EVEN MORE BOOST and popped the motor at about 1000whp. Now I don't think that these walls can take that kind of abuse but at 6-8psi and a good tune which if I make it happen will be taken care of by Matt at Tune Time performance in Toms River NJ on a AWD dyno it will be fine. So again if you have this extensive turbo experience how bout answering the question on which turbo can produce enough flow to show worth while gains on a engine this size at the previously said 6-8 psi

turbocamaro125

iTrader: (3)

you can get away with alot on a stock honda motor....stock b16 28psi t3/.82 ar T66 turbo 578whp on c16....i used to be a big honda guy..lol

slippi84

iTrader: (4)

I meant stock everything not just the block. Hell my 4g63t stock block supported 850whp with a gt4294 at 45psi

slippi84

iTrader: (4)

ON this page in his build thread he says that he was running just under 10psi and 752rwhp on 11/28/2010
http://www.camaro5.com/forums/showth...=115181&page=4

The next day his tuner post and says they have it at 770rwhp 670ft/lbs
http://www.camaro5.com/forums/showth...=115181&page=5

Then on 12/1/2010 they got there pulleys in and upped the boost to 16psi and made 912rwhp 840ft/lbs
http://www.camaro5.com/forums/showth...=115181&page=6

AT THIS POINT THE MOTOR IS FINE AND RUNNING STRONG

1/8/2011 Everything hits the **** he starts posting up threads and stuff about how he was lied to by Jamie and that because of x y z source including talking to Jamie face to face that he was told it would be fine to up the wick and go big. I"m not telling you this to start **** with him or say he was wrong or right but the fact of the matter is the engine was FINE at just under 10 psi and 770rwph and 16psi 912whp on c16. Knowing that why wouldn't 8psi and meth work????

slippi84

iTrader: (4)

Listen I don't want to seem like a know it all and I appoligize if I come across like that but I knew what I had a question about and what I was good on. I feel like very few people have even addressed the question I asked and that is extremely frustrating. I know you guys are trying to help and I appreciate that but this is the turbo section not the engine section. The thread is about the turbos not the motor.

koolrayz

iTrader: (26)

In the OP you talked about a BW 475. I think that will choke the **** out of the motor. The turbine has to flow what the engine produces or it will backup and recirculate into the intake. RPM plans will be a big influence on what you buy also. Your looking for a big turbine with a little compressor. The precision large frame 85 comes to mind with the 1.32 or 1.5 ar. Given the low boost I really think you will be happier with a supercharger. You can size and pulley the supercharger to control the boost with a small blower at lower boost.

slippi84

iTrader: (4)

Now that's what I was looking for thanks. If a S475 won't flow enough there won't be enough room for anything larger so my real only option would be pro-charger or something like a 3.3 or 3.8 whipple.

Morphin

How is the Gm LSX block that Nelson uses on his +1500hp builds diferent from the ones that supposely crack?

Nelson 454lsx tt: http://www.nelsonracingengines.com/p..._454lsx_tt.pdf

Striker289

iTrader: (1)

Honestly Leave it NA, Seems like it took you long enough to get the motor in and get it running.

http://www.tbssowners.com/forums/sho...hlight=lsx+454





http://www.tbssowners.com/forums/showthread.php?t=77260

1fast bird

iTrader: (22)

That 454 is a tall deck block with smaller bores.

need2speed94

Thicker cylinder walls? That all makes sense now haha

LS1NOVA

iTrader: (12)

If you already have your mind made up then I would recommend calling a vendor and having them spec a turbo. I dont have personal experience but I bet an S400 of some sort would work. S475, S480etc.

longrange4u

iTrader: (2)

Hmm... dont know if I agree with that. There are advantages and disadvantages to CI on a turbo motor... I have built a 455CI for specifically turbos.

@ original poster: Call Jose at Forced Inductions.... (Sponsor) him or Dr Turbo (here on board) both can work with you on what you need. It sounds like you need some good advice from purpose built turbo guys (Forced Inductions or similar shop)... I would like to see what you can do with your combo... but I would caution you that Backpressure is going to be your enemy as you arent trying to turn big HP, so you dont want a big Turbo, but you have big air being pushed (454)... I think any turbo you use that can handle the air is going to give you WAAAAY more than 100HP gains... I know its overkill for what you are looking to do but I would consider a FI-88x? You can get it with a 1.6 AR and that will help reduce that backpressure and allow your engine to breath... but at 8psi I think you will be north of 700RWHP (If the rest of your ride can handel it)

RedRocketZ28

iTrader: (19)

Ahh ****.

need2speed94

More cubes = less boost to make power. It's the reason why it takes an average 4.6 Terminator 1.3 bar to make 500whp and it only takes a 5.7 LS1 a little under 1 bar.