hey i had posted a thread about a h22 swap awile ago, but now have looked into more other ideal setups, and now, one of my good freinds that owns a shop (Blacktrax motorsports) had gave me a good setup to go for. well, for the pricing, he said to go for a b20 turbo swap. just swap the motor and then throw my old turbo(t3/t4 turbonetics) on it and run about 5-8 pounds safely tuned. ( and yes TUNING is what matters) the motorswap and turbo installation came out to 2200$

he said that once i get it on, i will love it. The torque curve would be amazing, then the hp is what the turbo will do and top end.

im guessing that i'll do high 12's, low 13's..

ANY COMMENTS ON HERE WOULD BE GREAT. THANKS TO ALL THAT HELPED

 

B20's have been boosted with mixed success in the past. They have remarkably thin cylinder walls that don't hold up well under the extreme conditions associated with boosting a car. I'm personally not a fan of taking unnecessary risks and would not do this. I do like the H22 idea though.

 

Why don't you just boost your B18?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Moogen Powah &raquo;</TD></TR><TR><TD CLASS="quote">Why don't you just boost your B18?</TD></TR></TABLE>



I've heard the same about b20 blocks being too thin and not liking the boost. I've also heard they make excellent all-motor platforms. You should just boost the b18...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Moogen Powah &raquo;</TD></TR><TR><TD CLASS="quote">Why don't you just boost your B18?</TD></TR></TABLE>


i already have boosted it. and i boosted the **** out of it unsafely. not tuned and ran like 10 pounds on stock motor. it pretty much shot my motor. theres jsut little things going wrong with everything. thats why i'm goin b20 turbo. i dont want to buy another ls block and build it up ( you know bottom end and so forth. too much money).

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kendall &raquo;</TD></TR><TR><TD CLASS="quote">B20's have been boosted with mixed success in the past.</TD></TR></TABLE>

what do mean mixed success? in a good way? or bad way?

 

i know that the b20 has thin small cyclinder wall, but do you think like a block guard would help at all?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vinhtran17 &raquo;</TD></TR><TR><TD CLASS="quote">i know that the b20 has thin small cyclinder wall, but do you think like a block guard would help at all?</TD></TR></TABLE>
get darton sleeves

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vinhtran17 &raquo;</TD></TR><TR><TD CLASS="quote">what do mean mixed success? in a good way? or bad way?</TD></TR></TABLE>
in bad & good ways

 

darton sleeves? to sleeve the block?

(* sorry im still new to the internals)

 

has anyone heard good news about a b20 turbo safely?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vinhtran17 &raquo;</TD></TR><TR><TD CLASS="quote">darton sleeves? to sleeve the block?

(* sorry im still new to the internals)</TD></TR></TABLE>

yea darton sleeves to sleeve the block

 

i really dont have the money to invest in sleeving, but i think the block guard can help structure the walls. its better then nothing.

 

any more comments?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vinhtran17 &raquo;</TD></TR><TR><TD CLASS="quote">any more comments?</TD></TR></TABLE>

do low boost, like the psi you mentioned, then save up money to build the internals (sleeving, pistons, rods, bearings, girdle, headwork) and you will have a good setup

 

do it right the first time otherwise the B20 will suffer the same fate as your B18. . . Wait and save up money until you can afford to do it right. .. no point in spending money twice. . .

 

why spend all the time and money and not get your 1st motor tuned?? if your thinking about half assing a boosted b20 your gonna gett teh same results. do some more research and do it rite.

 

ive looked all over hondatech about b20 turbo setups and havent got any. is there any other links or site where i can find them?

 

Your search for b20 turbo returned 248 results


Check the archives when you search

 

Im looking to Boost a B20 vtec but the only way i will ever do that is if the block is sleeved, so its more of a dream. The block gaurd is alright but will not make your block indestructable. Get a sleeved B20 or another B18. Id say if you didn't have the money, only run 5 psi max.

 

there are differnet b20's not sure which but some have hgher compression and some lower. i think the b20Z (correct me if im wrong) is the higher compression motor... but im not really sure. sleeving would take care of the thin cylinder walls if thats the problem. and yes b20s make excelent all motor platforms- a buddy of mines got one its pretty quick. b18b turbo--- rebuild yours man. youll spend less and be able to boost safely.

 

if you're going to sleeve a b20, you might as well just sleeve a B18... the blocks are cheaper, and they hold sleeves better than B20s. There have been stories of sleeved b20s dropping sleeves because of teir design (the siamese sleeve design where they the sleeves all share a wall with the next sleeve.)

I have built a turbo B20/vtec. this spring I'm looking to run 15psi at the absolute highest. I am runing stock sleeves, a blockguard, a block girdle and in addition for aftermarket internals, I have had everything balanced. I am hoping that these modifications can reduce internal vibration and prolong the life of my block.

wish me luck, and see my signature
-Mike

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AngelTeg &raquo;</TD></TR><TR><TD CLASS="quote">if you're going to sleeve a b20, you might as well just sleeve a B18... the blocks are cheaper, and they hold sleeves better than B20s. There have been stories of sleeved b20s dropping sleeves because of teir design (the siamese sleeve design where they the sleeves all share a wall with the next sleeve.)

I have built a turbo B20/vtec. this spring I'm looking to run 15psi at the absolute highest. I am runing stock sleeves, a blockguard, a block girdle and in addition for aftermarket internals, I have had everything balanced. I am hoping that these modifications can reduce internal vibration and prolong the life of my block.

wish me luck, and see my signature

-Mike</TD></TR></TABLE>

all the b series use the same ylinder design- thats not the differene. the difference is that the b20 block has wider diameter cylinder bored. hene bumping it to 2 litres

 

i think u should just build the b18 up and boost the **** out of it! and and tuneee next time

 

i have a boosted b20 when it was a stock block it put down great #s 312 hp & 300trq on 12lb'swith vafc hack your right its all about the tuning . now its built on hondata sc61 youll love the torque. on a t3t4 instant response

 

this is what my buddy whos helping me with the setup:"

"yah...people do it all the time....
It's not the sleeves that cause the motor to blow on the B20. Its the improper tuning.
I've even heard of 14 psi on a stock B20 (something i wouldn't recommend though). The key is PROPER TUNING. Its the single most important factor when boosting. A B20 motor demands alot of fuel, slap a turbo on their and it's gonna be craving a **** load of fuel....it needs fuel! I wouldn't recommend boosting it at all without fuel upgrades. An FPR, injectors, FMU, Safc, something to add more fuel.
But, to answer your question, yes, you can run 5-8 psi very safely with fuel tuning. The problem is people don't give the B20 enough fuel, it gets so hot without the needed fuel and the sleeves can crack. like i said...you need the FUEL!
You wouldn't even need the girdle...but it will slightly improve the blocks strength. I say go for it!
To tell you the truth...you don't even really need the 402T's...because the B20 cams are already good for turbo (not a big turbo but a small turbo).
I would say run a T3 or MAYBE a T3/T4. But....you shouldn't go any bigger. Think about it. The B20's power range is from 2-6k. So you wanna get something to compliment its power range...like a T3. Don't get some big *** turbo that doesn't see max boost until 8k...when you'll never bring that motor that high (you shouldn't anyway)..."