What turbo to use t3 fitment 350bhp?

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GP82

Member +
The precision turbo's are a really good charger. Just compromise with a small turbine housing if the car will mainly be used for street to retain good response and a broad powerband. It will also be a good turbo for drag, price on them at the moment is good too.
 
spuddy

spuddy

Ulster Area Rep.
mickyboy said:
If you think about it, a longer strokeing engine takes longer to rotate.. yeah it has abit more air going through the combustion chamber but in theory a sorter rod/strock engine will rev faster there for pushing the air around the engine much quicker there for spinnig the turbo faster..If the 5e was alot bigger in bore then yeah it will make alot of diffrance with torque/spool up times!.. its like a power bike for instance sorter rods/carbs and it revs like a bitch at the end of the day starlets weigh a bag of flower so is there realy going to be much lag? i dont think so!!...Also its down to what turbo you choose and how good your mapper is to get it to spool alot quicker!!

Also if you look at the leaderboard Alan e makes more nm/torque on a 4e then stubby with his 5e, Alan hasnt made as much power but it says it all realy
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Not sure what to make of all that. Are you saying a 5E doesn't produce more torque and a 4E spools a turbo faster?

Dunno how it takes it longer to rotate, 1000rpm is 1000rpm regardless of the engine, the pistons just have to move up and down faster in the longer stroking engine.

It's quite simple, it's all about leverage, stick a big bar on something and you can shift it easily cause you have more leverage or torque. The 5E crank is a little longer than a 4E crank so the rods have more leverage when pushing down, this is giving you more torque.

It's the extra 200cc of exhaust gases that reduces the spool up time.


There's a fair difference between Stubbys and AlanEs setups, alan ran nitrous which is torque in a bottle, also runs 5E cams and a slightly smaller turbo which increases torque lower down the revs. Stubby has much larger cams which puts the torque peak closer to the rev limiter but generating more power by using revs. You would need to identically built motors with cams and turbos except one being a 5E and the other 4E to make the comparison.
 
billybob

billybob

Untrusted Seller
animalgt said:
if u just want to chase figures go 5eQUOTE=jam35;1043717 you say you dont want it too laggy and use it mainly on the road. imo that sort of power isnt realy usable on the road you will easily see 350 but expect to put up with lag
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this bit i dont get!! you's are all hooked up on this 5e crap..lol 5e means nothing to me. nothing wrong with the 4e dude stick with it ;)[/QUOTE]you kind of said it there about the figures the 5es do hold them highest power and the top quarter mile run in the world ,as puffy has proven ,they are a better engine the 5es getting the right fella to tune them to get max potenail from them ,and of course the big bottles of nos :) as said be interesting to see what browners car gets after dynoing as he will be running some decent stuff on his setup,i my self might make a change just see how browner fairs out tunning wise :)
 
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animal gt

Member +
was waitn for u and STUBBY to find the thread HAHAHA
4e or no E eric u even have to use 4e heads loads of more 4e bits..you no its the better engine :) booom
 
spuddy

spuddy

Ulster Area Rep.
I'm slowly replacing my car with Honda stuff lol, Type R or no R haha! You's can keep your E!
 
B

buckets

Member +
animalgt said:
was waitn for u and STUBBY to find the thread HAHAHA
4e or no E eric u even have to use 4e heads loads of more 4e bits..you no its the better engine :) booom
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i love how a thread turns into the 4e /5e debets cant beat them ,yep ive alot of animal spead over my car now lol
 
srankin90

srankin90

Member +
pc18 said:
thing is on a 5e you dont need to be reving so high to keep things on boost. a 5e is a much better drive. my friends 4e running a vf28 at 1.1 bar makes 252bhp, the same as my car at the moment at the same boost but mines making 243ft lbs and his is only making 198ft lbs. and his isnt making peak power until almost the red line but mines peaking at 5.8k

yes 4e is a great engine and can probably make about the same power as a 5e but....
a 5e is always going to spool turbos quicker and be a nicer drive off boost. unless you have a track car your not going flat out full boost everywhere are you.
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but is there that much difference in spool time? its all to do with how the engine is built and mapped. cant really compare 2 cars unless they are of the exact same spec. would love to go 5E but for making more torque and spooling up abit quicker i cant really justify the hassle
 
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AdamB

Member +
The extra like 170cc make all the different mate. Can't give an exact figure as it does depend on the map like you say. It's a lot of hassle if you already got the forged bits for the 4e. Although its only the rods which differ, but it still a case of finding a 5e.
 
srankin90

srankin90

Member +
GP82 said:
The precision turbo's are a really good charger. Just compromise with a small turbine housing if the car will mainly be used for street to retain good response and a broad powerband. It will also be a good turbo for drag, price on them at the moment is good too.
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yeah i've heard that they are good strong turbos and they are also well priced.
 
srankin90

srankin90

Member +
AdamB said:
The extra like 170cc make all the different mate. Can't give an exact figure as it does depend on the map like you say. It's a lot of hassle if you already got the forged bits for the 4e. Although its only the rods which differ, but it still a case of finding a 5e.
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i was for changing to 5E but its hard to get just a block and you usually have to buy a whole engine or a whole car
 
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