Another silly, can I put a V8 in my IS thread. - Lexus IS Forum
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post #1 of 102 (permalink) Old 01-18-2006, 10:02 PM Thread Starter
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Another silly, can I put a V8 in my IS thread.

Complete journal here: https://my.is/forums/f114/is300-v8-sw...blower-287373/


Since I know this thread will generate a bunch of "hate", so I'll start off by saying that I have full fabrication facilities either in house or available to me to complete this project.

Basic things are needed:
1. Engine & transmission
2. In depth understanding of Toyota Wiring
3. General understanding of electronics
4. Excellent fabrication skills
5. Motor & transmission mounts
6. AC lines, fuel lines, water hoses, radiator, tranny cooler
7. Custom headers & exhaust
8. The financial ability to complete.
9. Etc. (all the other stuff I'm too lazy to mention in this thread)

My questions are:

1. Which V8? (I see a couple of options)
a. The obvious, A 98+ 4.0 or 01+ 4.3
b. 2nd obvious: 4.7l A little heavier, but available bolt on supercharger.
c. LS1 or LS2 small block Chevy.


Each motor will require custom mounts, exhaust, drive shaft and wiring.

The Lexus motors will have more compatible sensors for the IS body. That's a given. Not to mention, most Toyota dealers can service it.

The GM LS series motors have the available support of aftermarket parts second to none. Including LS1 edit, less expensive auto tranny upgrades, stand alone wiring harnesses to make wiring very simple. The ability to run 500+hp naturally aspirated.


As I did with my winning Sport Compact Car USCC MR2, I intend to build JIGs of everything so that I can replicate the parts. This brings me to my last question:

2. Which engine would be more "marketable" if someone were to offer a "kit" making the V8 swap essentially a weekend project for the competent weekend mechanic? The purist in me believes that the Toyota V8 is the only way to go, however the experienced hotrodder in me tells me to strongly consider the LS1 engine.

Thanks in advance for any constructive help.

-Brad

Last edited by Brad Bedell; 05-04-2008 at 07:52 AM. Reason: spelling owns me
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post #2 of 102 (permalink) Old 01-18-2006, 10:06 PM
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http://www.superstreetonline.com/fea...300/index.html

nuff said...

search around on this forum, this question has been asked before.....

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post #3 of 102 (permalink) Old 01-18-2006, 10:15 PM Thread Starter
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Quote:
Originally Posted by tsopranoMB
http://www.superstreetonline.com/fea...300/index.html

nuff said...

search around on this forum, this question has been asked before.....
Cool link, it's a great writeup!

I've spent the last 7 days searching this topic.

This one really hasn't asked this question. I get a bunch of "how much will it cost?" and a bunch of replies of "a whole bucket of money" but noone has every actually given any constructive advice. *IF* they did, it was totally drowned by the noise to information ratio.

I have the experience and ability to complete the project. My most recent project was an OBD II compliant SW20 MR2 chassis (swapped a VVT-I V6 into a turbo MR2 chassis, including the fooling of the stock ECU automatic electronics). I am just trying to talk myself out of the total bastard idea of a chevy motor in my sportcross.

-Brad
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post #4 of 102 (permalink) Old 01-18-2006, 10:16 PM
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Quote:
Originally Posted by Brad Bedell
Since I know this thread will generate a bunch of "hate", so I'll start off by saying that I have full fabrication facilities either in house or available to me to complete this project.

Basic things are needed:
1. Engine & transmission
2. In depth understanding of Toyota Wiring
3. General understanding of electronics
4. Excellent fabrication skills
5. Motor & transmission mounts
6. AC lines, fuel lines, water hoses, radiator, tranny cooler
7. Custom headers & exhaust
8. The financial ability to complete.
9. Etc. (all the other stuff I'm too lazy to mention in this thread)

My questions are:

1. Which V8? (I see a couple of options)
a. The obvious, A 98+ 4.0 or 01+ 4.3
b. 2nd obvious: 4.7l A little heavier, but available bolt on supercharger.
c. LS1 or LS2 small block chevy.


Each motor will require custom mounts, exhasut, driveshaft and wiring.

The lexus motors will have more compatible sensors for the IS body. That's a given. Not to mention, most Toyota dealers can service it.

The GM LS series motors have the available support of aftermarket parts second to none. Including LS1 edit, less expensive auto tranny upgrades, stand alone wiring harnesses to make wiring very simple. The ability to run 500+hp naturally aspriated.


As I did with my winning Sport Compact Car USCC MR2, I intend to build JIGs of everything so that I can replicate the parts. This brings me to my last question:

2. Which engine would be more "marketable" if someone were to offer a "kit" making the V8 swap essentailly a weekend project for the competent weekend mechanic. The purist in me believes that the Toyota V8 is the only way to go, however the experienced hotrodder in me tells me to strongly consider the LS1 engine.

Thanks in advance for any constructive help.

-Brad
I'm a little confused.
Why do you even want a V8 in there?
Do you think it's gonna make more power?

is300allshow's car has a V8. It drops in.
But is it worth it? Boost your car and you'll have plenty of power. Why buy another motor and do all this stuff to have a non-boosted motor?

For the same price you can be mid 400's at the wheels.

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post #5 of 102 (permalink) Old 01-18-2006, 10:24 PM
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i agree with De.

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post #6 of 102 (permalink) Old 01-18-2006, 10:27 PM Thread Starter
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Quote:
Originally Posted by SophieSleeps
I'm a little confused.
Why do you even want a V8 in there?
Do you think it's gonna make more power?

is300allshow's car has a V8. It drops in.
But is it worth it? Boost your car and you'll have plenty of power. Why buy another motor and do all this stuff to have a non-boosted motor?

For the same price you can be mid 400's at the wheels.
Well, to be honest.. I heard the same song and dance when I was the first to break 400hp out of a 3sgte back in 1995. Everyone told me to buy a camaro or Mustang and stop messing with the little imports..

Then, not but 3 years ago, when I was putting a V6 in an Mr2 I was told that the 3sgte in the MR2 could produce 500+ hp all day long. This link shows evidence of why I felt the engine swap was better: http://bedellracing1.home.comcast.net/uscc/uscc016.jpg
I was the first MR2 to complete and win the contest against some very well known tuners.

Needless to say, I don't tend to like to "follow" the crowd. I like the challenge, the ability to own something "different", and low-end torque that a V8 offers.

-Brad
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post #7 of 102 (permalink) Old 01-18-2006, 10:28 PM
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why not just put in a Supra 2JZ-GTE Twin Turbo with a V160 6 speed trans??? better off with that, then a V8....IMO

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post #8 of 102 (permalink) Old 01-18-2006, 10:40 PM
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a few of my friends also think NA power is better than FI power. I have no preference, to me power is power, as long as i get it within the range i want to....

this is as far as i will go with V8 in my IS:



only 70 calories

ok, back on topic, if you decide to go with the swap, good luck and let us know how it works out.

'01 SBM. TT internals & cams, EMU, PFS built tranny & 3" exhaust. 446 (pump)/535 (mix) rwhp. JDM Wald, Custom BBK (8 pistons front and 4 pistons rear), GT-N (18x8 F & 18x10 R)

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post #9 of 102 (permalink) Old 01-18-2006, 11:54 PM
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go for it! I'd take a V8 in my car any day over turboing the 2jz... it's different. you won't be "just" another boosted IS. I'm not knocking the boosted guys at all. different strokes for different folks, that's all. in this case I prefer 8 stokes to six.

and as for which motor... I say go with a toyota motor if you wanna market this in the future, chevy if you just wanna go fast.

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post #10 of 102 (permalink) Old 01-19-2006, 12:00 AM
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you have my support, go for it

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post #11 of 102 (permalink) Old 01-19-2006, 12:09 AM
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do ls430 engine swap!!

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post #12 of 102 (permalink) Old 01-19-2006, 12:10 AM
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do it...not the chevy enging though...imo...
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post #13 of 102 (permalink) Old 01-19-2006, 12:31 AM
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ls1

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post #14 of 102 (permalink) Old 01-19-2006, 12:45 AM
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Since someone has already done the V8 swap, why not just do an inline four instead?That would be different and unique.
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post #15 of 102 (permalink) Old 01-19-2006, 01:49 AM
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Hmmm, there used to be an OT on the Cleveland Browns named Brad Bedell a couple years ago....

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