mwilkinson Posted February 4, 2012 Share Posted February 4, 2012 (edited) I have a replica Greddy manifold. I have been going over some of the install processes today and got to the Idle Control Valve. This kit has the same remote location kit for the IACV as the Greddy one. Unfortunately the diameter of the new fitting is slightly to small for the parts of the IACV to fit. Now,the fitment issue could be because it's a cheap kit and they have just got this wrong. I have emailed the company to see if they can help. I have also been reading up to see if there was a difference in the IACV size between auto and manual, which there does not appear to be. Also a pre and facelift car, which apparently there is. I have also been reading that many aftermarket manifolds don't come with a IACV relocation kit. I have a Syvecs ECU going in and wondered if there was a way of controlling idle without the valve or if there was another option to control the idle which other people with aftermarket manifold, other than the Greddy one use? Any help would be gratefully received. Edited February 5, 2012 by mwilkinson (see edit history) Quote Link to comment Share on other sites More sharing options...
Lude Posted February 5, 2012 Share Posted February 5, 2012 Cant you use a custom hose to connect the idle valve to the manifold? Silicone is flexuble and may fit. Regarding the ecu, i think that some control the idle but sure someone will verify soon... Quote Link to comment Share on other sites More sharing options...
mwilkinson Posted February 5, 2012 Author Share Posted February 5, 2012 (edited) I was looking at this more after posting this last night. The issue is not so much the idle control valve itself, but the check valve and washer, which are only on the TT models (i think). See in this diagram what I mean IACV Diagrams I intend on doing as Simon B did on his car but as above the fitment of the part for the IACV on the remote location bracket is poor. (See post 148 on link below). Simon B's build thread post number 148 My options, in my opinion, are to source a replacement part for the IACV relocation kit as part of my throttle body to use the stock IACV, or see if it is possible to use a different IACV from another car or a generic one given that I will be running this from the Syvecs and not the stock ECU with a piggy back. There are plenty of more modern IACVs out there but I am unsure if they would be suitable. Using an aftermarket one would reduce the size and remove the need to have such a large assembly, most of which from the TT is the coolant assembly which I wont be using. I think I will give Ryan a shout on this to se what he think the Syvecs can handle. Edited February 5, 2012 by mwilkinson (see edit history) Quote Link to comment Share on other sites More sharing options...
mwilkinson Posted February 5, 2012 Author Share Posted February 5, 2012 Well I have been looking on Supraforum and found a host of threads where many of the guys over there, especially with intake manifolds such as the Hypertune do not run a IACV. They state that the tuner can correct for this via the EMU? Supra Forum IACV Thread Quote Link to comment Share on other sites More sharing options...
mwilkinson Posted February 5, 2012 Author Share Posted February 5, 2012 (edited) OK, I seem to be documenting my own thoughts but I think this will be useful to someone in the future LOL. I have had other look at the kit that is supplied with the manifold. As stated earlier the issue is the fact that the washer and check valve are only very slightly larger than the opening which has been made for them. Thus I would need to have this enlarged, or reduce the size of the valve and washer to make them fit. I have however, come up with another plan. I noticed that the adaptor separates into two parts and that the opening between the two parts is the same size as the check valve. Therefore, an option would be to place the check valve here, with two washers to form a seal, and se how that works. This would omit the washer, but I think that was only there to form a seal and extend the check valve into the throttle body. Any thoughts on this? Edited February 5, 2012 by mwilkinson (see edit history) Quote Link to comment Share on other sites More sharing options...
chazuk Posted September 30, 2012 Share Posted September 30, 2012 OK, I seem to be documenting my own thoughts but I think this will be useful to someone in the future LOL. I have had other look at the kit that is supplied with the manifold. As stated earlier the issue is the fact that the washer and check valve are only very slightly larger than the opening which has been made for them. Thus I would need to have this enlarged, or reduce the size of the valve and washer to make them fit. I have however, come up with another plan. I noticed that the adaptor separates into two parts and that the opening between the two parts is the same size as the check valve. Therefore, an option would be to place the check valve here, with two washers to form a seal, and se how that works. [ATTACH=CONFIG]145720[/ATTACH] [ATTACH=CONFIG]145721[/ATTACH] [ATTACH=CONFIG]145722[/ATTACH] [ATTACH=CONFIG]145723[/ATTACH] [ATTACH=CONFIG]145724[/ATTACH] This would omit the washer, but I think that was only there to form a seal and extend the check valve into the throttle body. Any thoughts on this? What did you do to resolve this in the end ? Quote Link to comment Share on other sites More sharing options...
Parry_10 Posted September 30, 2012 Share Posted September 30, 2012 Ive got the same intake and the icv adaptor I got a machine shop to machine mine out so the the check valve fits perfectly, cost me £10. Quote Link to comment Share on other sites More sharing options...
mwilkinson Posted September 30, 2012 Author Share Posted September 30, 2012 As above, that's what I ended up doing too Quote Link to comment Share on other sites More sharing options...
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